{"id":32777,"date":"2026-02-25T15:00:00","date_gmt":"2026-02-25T11:30:00","guid":{"rendered":"https:\/\/webdade.com\/blog\/?p=32777"},"modified":"2026-02-24T15:00:21","modified_gmt":"2026-02-24T11:30:21","slug":"advanced-iptables-configuration-guide","status":"publish","type":"post","link":"https:\/\/webdade.com\/blog\/advanced-iptables-configuration-guide","title":{"rendered":"\u0622\u0645\u0648\u0632\u0634 \u067e\u06cc\u06a9\u0631\u0628\u0646\u062f\u06cc \u067e\u06cc\u0634\u0631\u0641\u062a\u0647 iptables\u061b \u0627\u0632 \u0627\u0645\u0646\u06cc\u062a \u067e\u0627\u06cc\u0647 \u062a\u0627 \u0645\u0642\u0627\u0628\u0644\u0647 \u0628\u0627 DDoS"},"content":{"rendered":"\n<p id=\"gspb_text-id-gsbp-2049d22\" class=\"gspb_text gspb_text-id-gsbp-2049d22 \">\u062f\u0631 \u062f\u0646\u06cc\u0627\u06cc \u0647\u0627\u0633\u062a\u06cc\u0646\u06af \u0648 \u0645\u062f\u06cc\u0631\u06cc\u062a \u0633\u0631\u0648\u0631\u060c \u0627\u0645\u0646\u06cc\u062a \u0627\u0648\u0644\u06cc\u0646 \u062d\u0631\u0641 \u0631\u0627 \u0645\u06cc\u200c\u0632\u0646\u062f. \u0634\u0627\u06cc\u062f \u0646\u0627\u0645 \u0627\u0628\u0632\u0627\u0631\u0647\u0627\u06cc\u06cc \u0645\u062b\u0644 UFW \u06cc\u0627 Firewalld \u0631\u0627 \u0634\u0646\u06cc\u062f\u0647 \u0628\u0627\u0634\u06cc\u062f\u060c \u0627\u0645\u0627 \u0622\u0645\u0648\u0632\u0634 iptables \u0628\u0647 \u0634\u0645\u0627 \u0627\u06cc\u0646 \u0642\u062f\u0631\u062a \u0631\u0627 \u0645\u06cc\u200c\u062f\u0647\u062f \u06a9\u0647 \u06a9\u0646\u062a\u0631\u0644 \u062f\u0642\u06cc\u0642\u200c\u062a\u0631\u06cc \u0631\u0648\u06cc \u0647\u0631 &#8220;\u0628\u0633\u062a\u0647&#8221; (Packet) \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u062f. \u062f\u0631 \u0648\u0627\u0642\u0639\u060c iptables \u062d\u06a9\u0645 \u0646\u06af\u0647\u0628\u0627\u0646 \u0648\u0631\u0648\u062f\u06cc \u06cc\u06a9 \u0645\u062c\u062a\u0645\u0639 \u0628\u0632\u0631\u06af \u0631\u0627 \u062f\u0627\u0631\u062f \u06a9\u0647 \u0646\u0647 \u062a\u0646\u0647\u0627 \u06a9\u0627\u0631\u062a \u0634\u0646\u0627\u0633\u0627\u06cc\u06cc\u060c \u0628\u0644\u06a9\u0647 \u0645\u062d\u062a\u0648\u06cc\u0627\u062a \u062c\u06cc\u0628 \u0647\u0631 \u0641\u0631\u062f \u0631\u0627 \u0647\u0645 \u0628\u0627\u0632\u0631\u0633\u06cc \u0645\u06cc\u200c\u06a9\u0646\u062f.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-center\" data-align=\"center\">\u0648\u06cc\u0698\u06af\u06cc<\/th><th class=\"has-text-align-center\" data-align=\"center\">iptables (\u067e\u06cc\u0634\u0631\u0641\u062a\u0647)<\/th><th class=\"has-text-align-center\" data-align=\"center\">UFW \/ Firewalld (\u0633\u0627\u062f\u0647)<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">\u0633\u0637\u062d \u06a9\u0646\u062a\u0631\u0644<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u0628\u0633\u06cc\u0627\u0631 \u062f\u0642\u06cc\u0642 \u0648 \u0644\u0627\u06cc\u0647\u200c\u0627\u06cc<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u06a9\u0644\u06cc \u0648 \u0633\u0627\u062f\u0647\u200c\u0633\u0627\u0632\u06cc \u0634\u062f\u0647<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">\u0641\u06cc\u0644\u062a\u0631\u06cc\u0646\u06af Stateful<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u0639\u0627\u0644\u06cc (\u0628\u0627 \u0645\u0627\u0698\u0648\u0644 Conntrack)<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u067e\u0627\u06cc\u0647<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">\u0645\u0642\u0627\u0648\u0645\u062a \u062f\u0631 \u0628\u0631\u0627\u0628\u0631 DDoS<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u0628\u0633\u06cc\u0627\u0631 \u0628\u0627\u0644\u0627 \u0628\u0627 Rate Limiting<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u0636\u0639\u06cc\u0641<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">\u067e\u06cc\u0686\u06cc\u062f\u06af\u06cc \u06cc\u0627\u062f\u06af\u06cc\u0631\u06cc<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u0645\u062a\u0648\u0633\u0637 \u0628\u0647 \u0628\u0627\u0644\u0627<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u067e\u0627\u06cc\u06cc\u0646<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<div class=\"wp-block-greenshift-blocks-container gspb_container gspb_container-gsbp-fa03f97\" id=\"gspb_container-id-gsbp-fa03f97\">\n<div id=\"gspb_text-id-gsbp-b88a64b\" class=\"gspb_text gspb_text-id-gsbp-b88a64b \"><strong>\ud83d\udca1 iptables \u0686\u06cc\u0633\u062a\u061f<\/strong><br>\u06cc\u06a9 \u0627\u0628\u0632\u0627\u0631 \u062e\u0637 \u0641\u0631\u0645\u0627\u0646 \u0628\u0631\u0627\u06cc \u067e\u06cc\u06a9\u0631\u0628\u0646\u062f\u06cc \u0641\u0627\u06cc\u0631\u0648\u0627\u0644 \u0647\u0633\u062a\u0647 \u0644\u06cc\u0646\u0648\u06a9\u0633 (Netfilter) \u0627\u0633\u062a \u06a9\u0647 \u0627\u062c\u0627\u0632\u0647 \u0645\u06cc\u200c\u062f\u0647\u062f \u062a\u0631\u0627\u0641\u06cc\u06a9 \u0634\u0628\u06a9\u0647 \u0631\u0627 \u0628\u0631 \u0627\u0633\u0627\u0633 \u0642\u0648\u0627\u0646\u06cc\u0646 \u062e\u0627\u0635\u060c \u0641\u06cc\u0644\u062a\u0631 \u06cc\u0627 \u0647\u062f\u0627\u06cc\u062a \u06a9\u0646\u06cc\u062f.<\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u2705 \u067e\u0627\u06cc\u062f\u0627\u0631\u06cc \u0628\u0627\u0644\u0627 \u062f\u0631 \u0633\u0631\u0648\u0631\u0647\u0627\u06cc \u062a\u0648\u0644\u06cc\u062f\u06cc (Production)<\/li>\n\n\n\n<li>\u2705 \u0642\u0627\u0628\u0644\u06cc\u062a \u0627\u062c\u0631\u0627 \u062f\u0631 \u062a\u0645\u0627\u0645 \u062a\u0648\u0632\u06cc\u0639\u200c\u0647\u0627\u06cc \u0644\u06cc\u0646\u0648\u06a9\u0633<\/li>\n<\/ul>\n<\/div>\n\n\n\n<p id=\"gspb_text-id-gsbp-c5bf37f\" class=\"gspb_text gspb_text-id-gsbp-c5bf37f \">\u062d\u062a\u0645\u0627\u064b \u0632\u0645\u0627\u0646\u06cc \u06a9\u0647 \u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647 \u0631\u0627 \u0628\u0627\u0632 \u06a9\u0631\u062f\u0647\u200c\u0627\u06cc\u062f\u060c \u0628\u0647 \u062f\u0646\u0628\u0627\u0644 \u0631\u0627\u0647\u06cc \u0647\u0633\u062a\u06cc\u062f \u062a\u0627 \u0627\u0645\u0646\u06cc\u062a \u0633\u0631\u0648\u0631 \u0645\u062c\u0627\u0632\u06cc \u062e\u0648\u062f \u0631\u0627 \u0627\u0632 \u062d\u0627\u0644\u062a \u067e\u06cc\u0634\u200c\u0641\u0631\u0636 \u062e\u0627\u0631\u062c \u06a9\u0631\u062f\u0647 \u0648 \u062c\u0644\u0648\u06cc \u062d\u0645\u0644\u0627\u062a \u0645\u0632\u0627\u062d\u0645 \u0631\u0627 \u0628\u06af\u06cc\u0631\u06cc\u062f. \u0645\u0627 \u062f\u0631 \u0627\u06cc\u0646 \u0631\u0627\u0647\u0646\u0645\u0627\u06cc \u06af\u0627\u0645\u200c\u0628\u0647\u200c\u06af\u0627\u0645\u060c \u0627\u0632 \u0635\u0641\u0631 \u0645\u0637\u0644\u0642 \u06cc\u0639\u0646\u06cc \u0645\u0641\u0627\u0647\u06cc\u0645 \u062c\u062f\u0627\u0648\u0644 \u0634\u0631\u0648\u0639 \u06a9\u0631\u062f\u0647 \u0648 \u062a\u0627 \u0646\u0648\u0634\u062a\u0646 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a\u200c\u0647\u0627\u06cc \u0636\u062f DDoS \u067e\u06cc\u0634 \u0645\u06cc\u200c\u0631\u0648\u06cc\u0645. \u067e\u0633 \u0647\u0645\u0631\u0627\u0647 \u0645\u0627 \u0628\u0627\u0634\u06cc\u062f \u062a\u0627 \u06cc\u06a9 \u0628\u0627\u0631 \u0628\u0631\u0627\u06cc \u0647\u0645\u06cc\u0634\u0647\u060c \u067e\u0631\u0648\u0646\u062f\u0647 \u067e\u06cc\u06a9\u0631\u0628\u0646\u062f\u06cc \u0641\u0627\u06cc\u0631\u0648\u0627\u0644 \u0644\u06cc\u0646\u0648\u06a9\u0633 \u0631\u0627 \u0628\u0628\u0646\u062f\u06cc\u0645. \ud83d\ude09<\/p>\n\n\n\n<div class=\"wp-block-greenshift-blocks-container gspb_container gspb_container-gsbp-3090342\" id=\"gspb_container-id-gsbp-3090342\">\n<p id=\"gspb_heading-id-gsbp-4f2eab8\" class=\"gspb_heading gspb_heading-id-gsbp-4f2eab8 \"><strong>\u0622\u0646\u0686\u0647 \u062f\u0631 \u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647 \u0645\u06cc\u200c\u062e\u0648\u0627\u0646\u06cc\u062f:<\/strong><\/p>\n\n\n\n<div class=\"wp-block-greenshift-blocks-toc gs-toc gspb_toc-id-gsbp-9ed45ff\" id=\"gspb_toc-id-gsbp-9ed45ff\" data-offset=\"100\" itemscope itemtype=\"\"><div class=\"gs-autolist\"><div class=\"gs-autolist-item\" itemscope><span class=\"gs-autolist-number\">1<\/span><span class=\"gs-autolist-title\"><meta itemprop=\"name\" content=\"\u0645\u0639\u0645\u0627\u0631\u06cc \u0648 \u062c\u0631\u06cc\u0627\u0646 \u0628\u0633\u062a\u0647 (Packet Flow) \u062f\u0631 iptables \u0686\u06cc\u0633\u062a\u061f\"\/><a class=\"gs-scrollto\" href=\"#what-is-iptables-architecture\">\u0645\u0639\u0645\u0627\u0631\u06cc \u0648 \u062c\u0631\u06cc\u0627\u0646 \u0628\u0633\u062a\u0647 (Packet Flow) \u062f\u0631 iptables \u0686\u06cc\u0633\u062a\u061f<\/a><\/span><\/div><div class=\"gs-autolist-item gs_sub_heading\" itemscope><span class=\"gs-autolist-number\">1.1<\/span><span class=\"gs-autolist-title\"><meta itemprop=\"name\" content=\"\u0686\u0631\u0627 \u0628\u0647 \u067e\u06cc\u06a9\u0631\u0628\u0646\u062f\u06cc \u067e\u06cc\u0634\u0631\u0641\u062a\u0647 \u0641\u0627\u06cc\u0631\u0648\u0627\u0644 \u0646\u06cc\u0627\u0632 \u062f\u0627\u0631\u06cc\u0645\u061f\"\/><a class=\"gs-scrollto\" href=\"#importance-of-firewall-configuration\">\u0686\u0631\u0627 \u0628\u0647 \u067e\u06cc\u06a9\u0631\u0628\u0646\u062f\u06cc \u067e\u06cc\u0634\u0631\u0641\u062a\u0647 \u0641\u0627\u06cc\u0631\u0648\u0627\u0644 \u0646\u06cc\u0627\u0632 \u062f\u0627\u0631\u06cc\u0645\u061f<\/a><\/span><\/div><div class=\"gs-autolist-item\" itemscope><span class=\"gs-autolist-number\">2<\/span><span class=\"gs-autolist-title\"><meta itemprop=\"name\" content=\"\u067e\u06cc\u0634\u200c\u0646\u06cc\u0627\u0632\u0647\u0627 \u0648 \u0634\u0631\u0648\u0639 \u06a9\u0627\u0631 \u0628\u0627 \u0622\u0645\u0648\u0632\u0634 iptables\"\/><a class=\"gs-scrollto\" href=\"#iptables-prerequisites\">\u067e\u06cc\u0634\u200c\u0646\u06cc\u0627\u0632\u0647\u0627 \u0648 \u0634\u0631\u0648\u0639 \u06a9\u0627\u0631 \u0628\u0627 \u0622\u0645\u0648\u0632\u0634 iptables<\/a><\/span><\/div><div class=\"gs-autolist-item\" itemscope><span class=\"gs-autolist-number\">3<\/span><span class=\"gs-autolist-title\"><meta itemprop=\"name\" content=\"\u067e\u06cc\u0627\u062f\u0647\u200c\u0633\u0627\u0632\u06cc \u0627\u0633\u062a\u0631\u0627\u062a\u0698\u06cc Default Policy \u0648 \u0627\u0645\u0646\u06cc\u062a \u062d\u062f\u0627\u06a9\u062b\u0631\u06cc\"\/><a class=\"gs-scrollto\" href=\"#default-policy-security\">\u067e\u06cc\u0627\u062f\u0647\u200c\u0633\u0627\u0632\u06cc \u0627\u0633\u062a\u0631\u0627\u062a\u0698\u06cc Default Policy \u0648 \u0627\u0645\u0646\u06cc\u062a \u062d\u062f\u0627\u06a9\u062b\u0631\u06cc<\/a><\/span><\/div><div class=\"gs-autolist-item gs_sub_heading\" itemscope><span class=\"gs-autolist-number\">3.1<\/span><span class=\"gs-autolist-title\"><meta itemprop=\"name\" content=\"\u0645\u0631\u062d\u0644\u0647 1: \u067e\u0627\u06a9\u0633\u0627\u0632\u06cc \u0642\u0648\u0627\u0646\u06cc\u0646 \u0642\u0628\u0644\u06cc\"\/><a class=\"gs-scrollto\" href=\"#Clearing-previous-rules\">\u0645\u0631\u062d\u0644\u0647 1: \u067e\u0627\u06a9\u0633\u0627\u0632\u06cc \u0642\u0648\u0627\u0646\u06cc\u0646 \u0642\u0628\u0644\u06cc<\/a><\/span><\/div><div class=\"gs-autolist-item gs_sub_heading\" itemscope><span class=\"gs-autolist-number\">3.2<\/span><span class=\"gs-autolist-title\"><meta itemprop=\"name\" content=\"\u0645\u0631\u062d\u0644\u0647 2: \u0628\u0627\u0632 \u06a9\u0631\u062f\u0646 \u067e\u0648\u0631\u062a\u200c\u0647\u0627\u06cc \u062d\u06cc\u0627\u062a\u06cc \u0648 Conntrack\"\/><a class=\"gs-scrollto\" href=\"#Opening-critical-ports-and-Conntrack\">\u0645\u0631\u062d\u0644\u0647 2: \u0628\u0627\u0632 \u06a9\u0631\u062f\u0646 \u067e\u0648\u0631\u062a\u200c\u0647\u0627\u06cc \u062d\u06cc\u0627\u062a\u06cc \u0648 Conntrack<\/a><\/span><\/div><div class=\"gs-autolist-item gs_sub_heading\" itemscope><span class=\"gs-autolist-number\">3.3<\/span><span class=\"gs-autolist-title\"><meta itemprop=\"name\" content=\"\u0645\u0631\u062d\u0644\u0647 3: \u062a\u063a\u06cc\u06cc\u0631 \u0633\u06cc\u0627\u0633\u062a \u067e\u06cc\u0634\u200c\u0641\u0631\u0636 \u0628\u0647 DROP\"\/><a class=\"gs-scrollto\" href=\"#Change-the-default-policy-to-DROP\">\u0645\u0631\u062d\u0644\u0647 3: \u062a\u063a\u06cc\u06cc\u0631 \u0633\u06cc\u0627\u0633\u062a \u067e\u06cc\u0634\u200c\u0641\u0631\u0636 \u0628\u0647 DROP<\/a><\/span><\/div><div class=\"gs-autolist-item\" itemscope><span class=\"gs-autolist-number\">4<\/span><span class=\"gs-autolist-title\"><meta itemprop=\"name\" content=\"\u0641\u0627\u06cc\u0631\u0648\u0627\u0644 \u0647\u0648\u0634\u0645\u0646\u062f \u0628\u0627 \u0645\u0627\u0698\u0648\u0644 Conntrack (Stateful Inspection)\"\/><a class=\"gs-scrollto\" href=\"#stateful-firewall-conntrack\">\u0641\u0627\u06cc\u0631\u0648\u0627\u0644 \u0647\u0648\u0634\u0645\u0646\u062f \u0628\u0627 \u0645\u0627\u0698\u0648\u0644 Conntrack (Stateful Inspection)<\/a><\/span><\/div><div class=\"gs-autolist-item\" itemscope><span class=\"gs-autolist-number\">5<\/span><span class=\"gs-autolist-title\"><meta itemprop=\"name\" content=\"\u062c\u0644\u0648\u06af\u06cc\u0631\u06cc \u0627\u0632 \u062d\u0645\u0644\u0627\u062a DDoS \u0628\u0627 iptables \u0648 Hardening\"\/><a class=\"gs-scrollto\" href=\"#ddos-prevention-iptables\">\u062c\u0644\u0648\u06af\u06cc\u0631\u06cc \u0627\u0632 \u062d\u0645\u0644\u0627\u062a DDoS \u0628\u0627 iptables \u0648 Hardening<\/a><\/span><\/div><div class=\"gs-autolist-item gs_sub_heading\" itemscope><span class=\"gs-autolist-number\">5.1<\/span><span class=\"gs-autolist-title\"><meta itemprop=\"name\" content=\"1- \u062c\u0644\u0648\u06af\u06cc\u0631\u06cc \u0627\u0632 SYN Flood\"\/><a class=\"gs-scrollto\" href=\"#Prevent-SYN-Floods\">1- \u062c\u0644\u0648\u06af\u06cc\u0631\u06cc \u0627\u0632 SYN Flood<\/a><\/span><\/div><div class=\"gs-autolist-item gs_sub_heading\" itemscope><span class=\"gs-autolist-number\">5.2<\/span><span class=\"gs-autolist-title\"><meta itemprop=\"name\" content=\"2- \u062c\u0644\u0648\u06af\u06cc\u0631\u06cc \u0627\u0632 Ping Flood (ICMP Limit)\"\/><a class=\"gs-scrollto\" href=\"#Prevent -Ping-Flood-ICMP-Limit\">2- \u062c\u0644\u0648\u06af\u06cc\u0631\u06cc \u0627\u0632 Ping Flood (ICMP Limit)<\/a><\/span><\/div><div class=\"gs-autolist-item gs_sub_heading\" itemscope><span class=\"gs-autolist-number\">5.3<\/span><span class=\"gs-autolist-title\"><meta itemprop=\"name\" content=\"3- \u0645\u0642\u0627\u0628\u0644\u0647 \u0628\u0627 Port Scanning\"\/><a class=\"gs-scrollto\" href=\"#Port-Scanning\">3- \u0645\u0642\u0627\u0628\u0644\u0647 \u0628\u0627 Port Scanning<\/a><\/span><\/div><div class=\"gs-autolist-item gs_sub_heading\" itemscope><span class=\"gs-autolist-number\">5.4<\/span><span class=\"gs-autolist-title\"><meta itemprop=\"name\" content=\"4- \u0645\u062d\u062f\u0648\u062f \u06a9\u0631\u062f\u0646 \u062a\u0639\u062f\u0627\u062f \u06a9\u0627\u0646\u06a9\u0634\u0646\u200c\u0647\u0627 \u062f\u0631 iptables\"\/><a class=\"gs-scrollto\" href=\"#Limiting-the-number-of-connections-in-iptables\">4- \u0645\u062d\u062f\u0648\u062f \u06a9\u0631\u062f\u0646 \u062a\u0639\u062f\u0627\u062f \u06a9\u0627\u0646\u06a9\u0634\u0646\u200c\u0647\u0627 \u062f\u0631 iptables<\/a><\/span><\/div><div class=\"gs-autolist-item\" itemscope><span class=\"gs-autolist-number\">6<\/span><span class=\"gs-autolist-title\"><meta itemprop=\"name\" content=\"\u0686\u0627\u0644\u0634\u200c\u0647\u0627 \u0648 \u0646\u06a9\u0627\u062a \u0627\u062d\u062a\u06cc\u0627\u0637 \u062f\u0631 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 iptables\"\/><a class=\"gs-scrollto\" href=\"#iptables-limitations\">\u0686\u0627\u0644\u0634\u200c\u0647\u0627 \u0648 \u0646\u06a9\u0627\u062a \u0627\u062d\u062a\u06cc\u0627\u0637 \u062f\u0631 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 iptables<\/a><\/span><\/div><div class=\"gs-autolist-item\" itemscope><span class=\"gs-autolist-number\">7<\/span><span class=\"gs-autolist-title\"><meta itemprop=\"name\" content=\"\u0686\u06af\u0648\u0646\u0647 \u0642\u0648\u0627\u0646\u06cc\u0646 iptables \u0631\u0627 \u062f\u0627\u0626\u0645\u06cc \u06a9\u0646\u06cc\u0645\u061f\"\/><a class=\"gs-scrollto\" href=\"#make-iptables-persistent\">\u0686\u06af\u0648\u0646\u0647 \u0642\u0648\u0627\u0646\u06cc\u0646 iptables \u0631\u0627 \u062f\u0627\u0626\u0645\u06cc \u06a9\u0646\u06cc\u0645\u061f<\/a><\/span><\/div><div class=\"gs-autolist-item\" itemscope><span class=\"gs-autolist-number\">8<\/span><span class=\"gs-autolist-title\"><meta itemprop=\"name\" content=\"\u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0637\u0644\u0627\u06cc\u06cc \u0627\u0645\u0646\u06cc\u062a \u0633\u0631\u0648\u0631 (WebDade Shield)\"\/><a class=\"gs-scrollto\" href=\"#golden-security-script\">\u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0637\u0644\u0627\u06cc\u06cc \u0627\u0645\u0646\u06cc\u062a \u0633\u0631\u0648\u0631 (WebDade Shield)<\/a><\/span><\/div><div class=\"gs-autolist-item gs_sub_heading\" itemscope><span class=\"gs-autolist-number\">8.1<\/span><span class=\"gs-autolist-title\"><meta itemprop=\"name\" content=\"\u062e\u062f\u0645\u0627\u062a \u0648\u0628\u200c\u062f\u0627\u062f\u0647\u061b \u0627\u0645\u0646\u06cc\u062a \u062a\u0636\u0645\u06cc\u0646 \u0634\u062f\u0647 \u062f\u0631 \u0633\u0631\u0648\u0631 \u0645\u062c\u0627\u0632\u06cc\"\/><a class=\"gs-scrollto\" href=\"#webdade-services\">\u062e\u062f\u0645\u0627\u062a \u0648\u0628\u200c\u062f\u0627\u062f\u0647\u061b \u0627\u0645\u0646\u06cc\u062a \u062a\u0636\u0645\u06cc\u0646 \u0634\u062f\u0647 \u062f\u0631 \u0633\u0631\u0648\u0631 \u0645\u062c\u0627\u0632\u06cc<\/a><\/span><\/div><div class=\"gs-autolist-item gs_sub_heading\" itemscope><span class=\"gs-autolist-number\">8.2<\/span><span class=\"gs-autolist-title\"><meta itemprop=\"name\" content=\"\u0646\u062a\u06cc\u062c\u0647\u200c\u06af\u06cc\u0631\u06cc:  \u067e\u06cc\u06a9\u0631\u0628\u0646\u062f\u06cc \u067e\u06cc\u0634\u0631\u0641\u062a\u0647 iptables\u061b \u0627\u0632 \u0627\u0645\u0646\u06cc\u062a \u067e\u0627\u06cc\u0647 \u062a\u0627 \u0645\u0642\u0627\u0628\u0644\u0647 \u0628\u0627 DDoS\"\/><a class=\"gs-scrollto\" href=\"#conclusion\">\u0646\u062a\u06cc\u062c\u0647\u200c\u06af\u06cc\u0631\u06cc:  \u067e\u06cc\u06a9\u0631\u0628\u0646\u062f\u06cc \u067e\u06cc\u0634\u0631\u0641\u062a\u0647 iptables\u061b \u0627\u0632 \u0627\u0645\u0646\u06cc\u062a \u067e\u0627\u06cc\u0647 \u062a\u0627 \u0645\u0642\u0627\u0628\u0644\u0647 \u0628\u0627 DDoS<\/a><\/span><\/div><div class=\"gs-autolist-item gs_sub_heading\" itemscope><span class=\"gs-autolist-number\">8.3<\/span><span class=\"gs-autolist-title\"><meta itemprop=\"name\" content=\"\u0633\u0648\u0627\u0644\u0627\u062a \u0645\u062a\u062f\u0627\u0648\u0644 \u0627\u0632 \u0622\u0645\u0648\u0632\u0634 iptables\"\/><a class=\"gs-scrollto\" href=\"#faq\">\u0633\u0648\u0627\u0644\u0627\u062a \u0645\u062a\u062f\u0627\u0648\u0644 \u0627\u0632 \u0622\u0645\u0648\u0632\u0634 iptables<\/a><\/span><\/div><\/div><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-greenshift-blocks-image gspb_image gspb_image-id-gsbp-8c05138\" id=\"gspb_image-id-gsbp-8c05138\"><img decoding=\"async\" src=\"https:\/\/webdade.com\/blog\/wp-content\/uploads\/2026\/02\/advanced-iptables-configuration-guide6.webp\" data-src=\"\" alt=\"\u067e\u06cc\u06a9\u0631\u0628\u0646\u062f\u06cc \u0641\u0627\u06cc\u0631\u0648\u0627\u0644 \u0644\u06cc\u0646\u0648\u06a9\u0633\" loading=\"lazy\" width=\"910\" height=\"492\"\/><\/div>\n\n\n\n<div id=\"what-is-iptables-architecture\"><\/div><h2 id=\"gspb_heading-id-gsbp-df4970f\" class=\"gspb_heading gspb_heading-id-gsbp-df4970f \">\u0645\u0639\u0645\u0627\u0631\u06cc \u0648 \u062c\u0631\u06cc\u0627\u0646 \u0628\u0633\u062a\u0647 (Packet Flow) \u062f\u0631 iptables \u0686\u06cc\u0633\u062a\u061f<\/h2>\n\n\n\n<p id=\"gspb_text-id-gsbp-fec237f\" class=\"gspb_text gspb_text-id-gsbp-fec237f \">\u0628\u0631\u0627\u06cc \u062f\u0631\u06a9 \u0622\u0645\u0648\u0632\u0634 iptables \u067e\u06cc\u0634\u0631\u0641\u062a\u0647\u060c \u0627\u0628\u062a\u062f\u0627 \u0628\u0627\u06cc\u062f \u0628\u062f\u0627\u0646\u06cc\u062f \u06a9\u0647 \u0627\u06cc\u0646 \u0641\u0627\u06cc\u0631\u0648\u0627\u0644 \u0645\u062b\u0644 \u06cc\u06a9 \u0633\u06cc\u0633\u062a\u0645 \u0644\u0648\u0644\u0647\u200c\u06a9\u0634\u06cc \u067e\u06cc\u0686\u06cc\u062f\u0647 \u0627\u0633\u062a. \u062a\u0631\u0627\u0641\u06cc\u06a9 \u0627\u0632 \u06cc\u06a9 \u0633\u0645\u062a \u0648\u0627\u0631\u062f \u0634\u062f\u0647 \u0648 \u067e\u0633 \u0627\u0632 \u0639\u0628\u0648\u0631 \u0627\u0632 \u0641\u06cc\u0644\u062a\u0631\u0647\u0627\u06cc \u0645\u062e\u062a\u0644\u0641\u060c \u06cc\u0627 \u0628\u0647 \u0645\u0642\u0635\u062f \u0645\u06cc\u200c\u0631\u0633\u062f \u06cc\u0627 \u062f\u0648\u0631 \u0631\u06cc\u062e\u062a\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f. \u0642\u0644\u0628 \u0627\u06cc\u0646 \u0633\u06cc\u0633\u062a\u0645\u060c &#8220;\u062c\u062f\u0627\u0648\u0644&#8221; \u0648 &#8220;\u0632\u0646\u062c\u06cc\u0631\u0647\u200c\u0647\u0627&#8221; \u0647\u0633\u062a\u0646\u062f.<\/p>\n\n\n\n<p id=\"gspb_text-id-gsbp-3197e9b\" class=\"gspb_text gspb_text-id-gsbp-3197e9b \"><strong>\u062c\u062f\u0627\u0648\u0644 (Tables) \u0627\u0635\u0644\u06cc:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Filter Table:<\/strong> \u062c\u062f\u0648\u0644 \u067e\u06cc\u0634\u200c\u0641\u0631\u0636 \u0628\u0631\u0627\u06cc \u062a\u0635\u0645\u06cc\u0645\u200c\u06af\u06cc\u0631\u06cc \u062f\u0631\u0628\u0627\u0631\u0647 \u0627\u062c\u0627\u0632\u0647 \u0648\u0631\u0648\u062f \u06cc\u0627 \u062e\u0631\u0648\u062c.<\/li>\n\n\n\n<li><strong>NAT Table:<\/strong> \u0628\u0631\u0627\u06cc \u062a\u063a\u06cc\u06cc\u0631 \u0622\u062f\u0631\u0633\u200c\u0647\u0627\u06cc IP (\u0645\u062b\u0644 \u0641\u0648\u0631\u0648\u0627\u0631\u062f \u06a9\u0631\u062f\u0646 \u067e\u0648\u0631\u062a).<\/li>\n\n\n\n<li><strong>Mangle Table:<\/strong> \u0628\u0631\u0627\u06cc \u062a\u063a\u06cc\u06cc\u0631\u0627\u062a \u062e\u0627\u0635 \u062f\u0631 \u0633\u0631\u0628\u0631\u06af \u0628\u0633\u062a\u0647\u200c\u0647\u0627.<\/li>\n<\/ul>\n\n\n\n<p id=\"gspb_text-id-gsbp-fe6db56\" class=\"gspb_text gspb_text-id-gsbp-fe6db56 \"><strong>\u0632\u0646\u062c\u06cc\u0631\u0647\u200c\u0647\u0627 (Chains) \u0648 \u0645\u0633\u06cc\u0631 \u062d\u0631\u06a9\u062a:<\/strong><\/p>\n\n\n\n<div class=\"wp-block-greenshift-blocks-container gspb_container gspb_container-gsbp-513ba00\" id=\"gspb_container-id-gsbp-513ba00\">\n<ul class=\"wp-block-list\">\n<li>\u0627\u06cc\u0646\u062a\u0631\u0646\u062a \u27a1\ufe0f [PREROUTING] \u27a1\ufe0f {\u062a\u0635\u0645\u06cc\u0645\u200c\u06af\u06cc\u0631\u06cc \u0645\u0633\u06cc\u0631} \u27a1\ufe0f [INPUT] \u27a1\ufe0f \u0633\u0631\u0648\u0631 \u0634\u0645\u0627<\/li>\n\n\n\n<li>\u0633\u0631\u0648\u0631 \u0634\u0645\u0627 \u27a1\ufe0f [OUTPUT] \u27a1\ufe0f [POSTROUTING] \u27a1\ufe0f \u0627\u06cc\u0646\u062a\u0631\u0646\u062a<\/li>\n<\/ul>\n<\/div>\n\n\n\n<p id=\"gspb_text-id-gsbp-ad80362\" class=\"gspb_text gspb_text-id-gsbp-ad80362 \"><strong>\u0646\u0645\u0648\u062f\u0627\u0631 \u062c\u0631\u06cc\u0627\u0646 \u0628\u0633\u062a\u0647 (Simplified ASCII Flow):<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code has-background\" style=\"background-color:#00529e1a\"><code>      &#91; \u0648\u0631\u0648\u062f\u06cc \u0634\u0628\u06a9\u0647 ]\n           \u2b07\ufe0f\n    \u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510\n    \u2502  PREROUTING  \u2502 (NAT\/Mangle)\n    \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518\n           \u2b07\ufe0f\n    { \u0622\u06cc\u0627 \u0628\u0631\u0627\u06cc \u0633\u0631\u0648\u0631 \u0627\u0633\u062a\u061f } \u2500\u2500\u2500 \u062e\u06cc\u0631 \u2500\u2500\u25b6 &#91; FORWARD ] \u2500\u2500\u25b6 &#91; \u062e\u0631\u0648\u062c\u06cc ]\n           \u2b07\ufe0f \u0628\u0644\u0647\n    \u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510\n    \u2502    INPUT     \u2502 (Filter - \u0627\u0645\u0646\u06cc\u062a \u0627\u0635\u0644\u06cc \u0627\u06cc\u0646\u062c\u0627\u0633\u062a)\n    \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518\n           \u2b07\ufe0f\n      &#91; \u067e\u0631\u062f\u0627\u0632\u0634 \u062f\u0627\u062e\u0644\u06cc ]\n<\/code><\/pre>\n\n\n\n<div class=\"wp-block-greenshift-blocks-container gspb_container gspb_container-gsbp-5edec11\" id=\"gspb_container-id-gsbp-5edec11\">\n<div id=\"gspb_text-id-gsbp-6e00b49\" class=\"gspb_text gspb_text-id-gsbp-6e00b49 \">\ud83d\udd38 \u0646\u06a9\u062a\u0647 \u0641\u0646\u06cc: \u0627\u06a9\u062b\u0631 \u06a9\u0627\u0631\u0647\u0627\u06cc \u0627\u0645\u0646\u06cc\u062a\u06cc \u0645\u0627 \u062f\u0631 \u062c\u062f\u0648\u0644 Filter \u0648 \u0632\u0646\u062c\u06cc\u0631\u0647 INPUT \u0627\u0646\u062c\u0627\u0645 \u0645\u06cc\u200c\u0634\u0648\u062f\u061b \u062c\u0627\u06cc\u06cc \u06a9\u0647 \u0645\u0633\u062a\u0642\u06cc\u0645\u0627\u064b \u0628\u0627 \u0628\u0633\u062a\u0647\u200c\u0647\u0627\u06cc \u0648\u0631\u0648\u062f\u06cc \u0633\u0631\u0648\u0631 \u0633\u0631 \u0648 \u06a9\u0627\u0631 \u062f\u0627\u0631\u06cc\u0645.<\/div>\n<\/div>\n\n\n\n<div id=\"importance-of-firewall-configuration\"><\/div><h3 id=\"gspb_heading-id-gsbp-2204d9c\" class=\"gspb_heading gspb_heading-id-gsbp-2204d9c \">\u0686\u0631\u0627 \u0628\u0647 \u067e\u06cc\u06a9\u0631\u0628\u0646\u062f\u06cc \u067e\u06cc\u0634\u0631\u0641\u062a\u0647 \u0641\u0627\u06cc\u0631\u0648\u0627\u0644 \u0646\u06cc\u0627\u0632 \u062f\u0627\u0631\u06cc\u0645\u061f<\/h3>\n\n\n\n<p id=\"gspb_text-id-gsbp-b360eb3\" class=\"gspb_text gspb_text-id-gsbp-b360eb3 \">\u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u062a\u0646\u0638\u06cc\u0645\u0627\u062a \u067e\u06cc\u0634\u200c\u0641\u0631\u0636 \u0645\u062b\u0644 \u0628\u0627\u0632 \u06af\u0630\u0627\u0634\u062a\u0646 \u062a\u0645\u0627\u0645 \u067e\u0648\u0631\u062a\u200c\u0647\u0627\u060c \u0645\u062b\u0644 \u0627\u06cc\u0646 \u0627\u0633\u062a \u06a9\u0647 \u062f\u0631\u0628 \u062e\u0627\u0646\u0647 \u062e\u0648\u062f \u0631\u0627 \u0628\u0627\u0632 \u0628\u06af\u0630\u0627\u0631\u06cc\u062f \u0648 \u0641\u0642\u0637 \u06cc\u06a9 \u067e\u0631\u062f\u0647 \u062c\u0644\u0648\u06cc \u0622\u0646 \u0628\u06a9\u0634\u06cc\u062f! \u0642\u0648\u0627\u0646\u06cc\u0646 iptables \u0628\u0631\u0627\u06cc \u0627\u0645\u0646\u06cc\u062a \u0633\u0631\u0648\u0631 \u0632\u0645\u0627\u0646\u06cc \u0627\u0647\u0645\u06cc\u062a \u067e\u06cc\u062f\u0627 \u0645\u06cc\u200c\u06a9\u0646\u0646\u062f \u06a9\u0647 \u0628\u062f\u0627\u0646\u06cc\u062f \u0631\u0648\u0632\u0627\u0646\u0647 \u0647\u0632\u0627\u0631\u0627\u0646 \u0628\u0627\u062a \u0627\u0633\u06a9\u0646\u0631 \u062f\u0631 \u062d\u0627\u0644 \u062a\u0633\u062a \u06a9\u0631\u062f\u0646 \u067e\u0648\u0631\u062a\u200c\u0647\u0627\u06cc \u0628\u0627\u0632 \u0633\u0631\u0648\u0631\u0647\u0627\u06cc \u0645\u062c\u0627\u0632\u06cc \u0647\u0633\u062a\u0646\u062f.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u06a9\u0646\u062a\u0631\u0644 \u062f\u0633\u062a\u0631\u0633\u06cc:<\/strong> \u0641\u0642\u0637 \u0628\u0647 \u0627\u0641\u0631\u0627\u062f \u0645\u062c\u0627\u0632 \u0627\u062c\u0627\u0632\u0647 \u0648\u0631\u0648\u062f \u0645\u06cc\u200c\u062f\u0647\u06cc\u062f.<\/li>\n\n\n\n<li><strong>\u062c\u0644\u0648\u06af\u06cc\u0631\u06cc \u0627\u0632 \u0646\u0634\u062a \u062f\u0627\u062f\u0647:<\/strong> \u0627\u062c\u0627\u0632\u0647 \u0646\u0645\u06cc\u200c\u062f\u0647\u06cc\u062f \u0628\u0631\u0646\u0627\u0645\u0647\u200c\u0647\u0627\u06cc \u0645\u062e\u0631\u0628 \u0627\u0637\u0644\u0627\u0639\u0627\u062a \u0631\u0627 \u0628\u0647 \u0628\u06cc\u0631\u0648\u0646 \u0628\u0641\u0631\u0633\u062a\u0646\u062f (Output Filtering).<\/li>\n\n\n\n<li><strong>\u0628\u0647\u06cc\u0646\u0647\u200c\u0633\u0627\u0632\u06cc \u0645\u0646\u0627\u0628\u0639:<\/strong> \u0628\u0627 \u0628\u0633\u062a\u0646 \u062a\u0631\u0627\u0641\u06cc\u06a9 \u0647\u0631\u0632\u060c \u067e\u0647\u0646\u0627\u06cc \u0628\u0627\u0646\u062f \u0648 CPU \u0633\u0631\u0648\u0631 \u0634\u0645\u0627 \u0622\u0632\u0627\u062f \u0645\u06cc\u200c\u0645\u0627\u0646\u062f.<\/li>\n<\/ul>\n\n\n\n<div id=\"iptables-prerequisites\"><\/div><h2 id=\"gspb_heading-id-gsbp-569ca2d\" class=\"gspb_heading gspb_heading-id-gsbp-569ca2d \">\u067e\u06cc\u0634\u200c\u0646\u06cc\u0627\u0632\u0647\u0627 \u0648 \u0634\u0631\u0648\u0639 \u06a9\u0627\u0631 \u0628\u0627 \u0622\u0645\u0648\u0632\u0634 iptables<\/h2>\n\n\n\n<p id=\"gspb_text-id-gsbp-2ab4a88\" class=\"gspb_text gspb_text-id-gsbp-2ab4a88 \">\u0642\u0628\u0644 \u0627\u0632 \u0647\u0631 \u0686\u06cc\u0632\u060c \u0628\u0627\u06cc\u062f \u062f\u0633\u062a\u0631\u0633\u06cc \u0631\u0648\u062a (root) \u0628\u0647 \u0633\u0631\u0648\u0631 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u062f. \u062f\u0631 \u0648\u0628\u200c\u062f\u0627\u062f\u0647\u060c \u062a\u0645\u0627\u0645 \u0633\u0631\u0648\u0631\u0647\u0627\u06cc \u0645\u062c\u0627\u0632\u06cc \u0628\u0627 \u062f\u0633\u062a\u0631\u0633\u06cc \u06a9\u0627\u0645\u0644 \u0627\u0631\u0627\u0626\u0647 \u0645\u06cc\u200c\u0634\u0648\u0646\u062f \u062a\u0627 \u0634\u0645\u0627 \u0645\u062d\u062f\u0648\u062f\u06cc\u062a\u06cc \u062f\u0631 \u0627\u062c\u0631\u0627\u06cc \u062f\u0633\u062a\u0648\u0631\u0627\u062a \u0646\u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u062f.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u0633\u06cc\u0633\u062a\u0645 \u0639\u0627\u0645\u0644:<\/strong> \u0627\u0648\u0628\u0648\u0646\u062a\u0648\u060c \u062f\u0628\u06cc\u0627\u0646 \u06cc\u0627 \u0633\u0646\u062a\u200c\u0627\u0648\u200c\u0627\u0633 (\u0641\u0631\u0642\u06cc \u0646\u062f\u0627\u0631\u062f).<\/li>\n\n\n\n<li><strong>\u062f\u0633\u062a\u0631\u0633\u06cc:<\/strong> SSH \u0628\u0627 \u06a9\u0627\u0631\u0628\u0631 sudo.<\/li>\n\n\n\n<li><strong>\u0646\u0635\u0628 \u0627\u0628\u0632\u0627\u0631 \u067e\u0627\u06cc\u0647:<\/strong><\/li>\n<\/ul>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro padding-bottom-disabled cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#f6f6f4;--cbp-line-number-width:calc(1 * 0.6 * .875rem);line-height:1rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#282A36\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#282A36;display:none;background-color:#f6f6f4\" aria-label=\"Copy\" data-copied-text=\"Copied!\" data-has-text-button=\"textSimple\" data-inside-header-type=\"headlights\" aria-live=\"polite\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>sudo apt update &amp;&amp; sudo apt install iptables<\/textarea><\/pre><span class=\"cbp-btn-text\">Copy<\/span><\/span><pre class=\"shiki dracula-soft\" style=\"background-color: #282A36\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #62E884\">sudo<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">apt<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">update<\/span><span style=\"color: #F6F6F4\"> &amp;&amp; <\/span><span style=\"color: #62E884\">sudo<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">apt<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">install<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">iptables<\/span><\/span><\/code><\/pre><span style=\"display:flex;align-items:flex-end;padding:10px;width:100%;justify-content:flex-start;background-color:#282A36;color:#ebebe6;font-size:12px;line-height:1;position:relative\"> <\/span><\/div>\n\n\n\n<div class=\"wp-block-greenshift-blocks-image gspb_image gspb_image-id-gsbp-3b59c02\" id=\"gspb_image-id-gsbp-3b59c02\"><img decoding=\"async\" src=\"https:\/\/webdade.com\/blog\/wp-content\/uploads\/2026\/02\/advanced-iptables-configuration-guide.webp\" data-src=\"\" alt=\"\u0622\u0645\u0648\u0632\u0634 iptables\" loading=\"lazy\" width=\"910\" height=\"492\"\/><\/div>\n\n\n\n<p id=\"gspb_text-id-gsbp-a48dc6a\" class=\"gspb_text gspb_text-id-gsbp-a48dc6a \">\ud83d\udd36 \u0646\u06a9\u062a\u0647 \u0645\u0647\u0645: \u0642\u0628\u0644 \u0627\u0632 \u0634\u0631\u0648\u0639\u060c \u0645\u0637\u0645\u0626\u0646 \u0634\u0648\u06cc\u062f \u06a9\u0647 \u062f\u0633\u062a\u0631\u0633\u06cc \u062e\u0648\u062f\u062a\u0627\u0646 \u0628\u0647 SSH \u0642\u0637\u0639 \u0646\u0645\u06cc\u200c\u0634\u0648\u062f! \u0647\u0645\u06cc\u0634\u0647 \u06cc\u06a9 \u0642\u0627\u0646\u0648\u0646 \u0628\u0631\u0627\u06cc \u0628\u0627\u0632 \u06af\u0630\u0627\u0634\u062a\u0646 \u067e\u0648\u0631\u062a 22 (\u06cc\u0627 \u067e\u0648\u0631\u062a \u0633\u0641\u0627\u0631\u0634\u06cc SSH) \u0628\u0646\u0648\u06cc\u0633\u06cc\u062f.<\/p>\n\n\n\n<div id=\"default-policy-security\"><\/div><h2 id=\"gspb_heading-id-gsbp-5f94059\" class=\"gspb_heading gspb_heading-id-gsbp-5f94059 \">\u067e\u06cc\u0627\u062f\u0647\u200c\u0633\u0627\u0632\u06cc \u0627\u0633\u062a\u0631\u0627\u062a\u0698\u06cc Default Policy \u0648 \u0627\u0645\u0646\u06cc\u062a \u062d\u062f\u0627\u06a9\u062b\u0631\u06cc<\/h2>\n\n\n\n<p id=\"gspb_text-id-gsbp-0059756\" class=\"gspb_text gspb_text-id-gsbp-0059756 \">\u062f\u0631 \u067e\u06cc\u06a9\u0631\u0628\u0646\u062f\u06cc \u0641\u0627\u06cc\u0631\u0648\u0627\u0644 \u0644\u06cc\u0646\u0648\u06a9\u0633\u060c \u062f\u0648 \u0631\u0648\u06cc\u06a9\u0631\u062f \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0647\u0645\u0647 \u0686\u06cc\u0632 \u0628\u0627\u0632 \u0628\u0627\u0634\u062f \u0648 \u0641\u0642\u0637 \u0645\u0648\u0627\u0631\u062f \u0645\u0634\u06a9\u0648\u06a9 \u0631\u0627 \u0628\u0628\u0646\u062f\u06cc\u0645.<\/li>\n\n\n\n<li>\u0647\u0645\u0647 \u0686\u06cc\u0632 \u0628\u0633\u062a\u0647 \u0628\u0627\u0634\u062f \u0648 \u0641\u0642\u0637 \u0645\u0648\u0627\u0631\u062f \u0644\u0627\u0632\u0645 \u0631\u0627 \u0628\u0627\u0632 \u06a9\u0646\u06cc\u0645. \u0631\u0648\u0634 \u062f\u0648\u0645 (White-listing) \u062a\u0646\u0647\u0627 \u0631\u0648\u0634 \u0627\u0633\u062a\u0627\u0646\u062f\u0627\u0631\u062f \u0628\u0631\u0627\u06cc \u0633\u0631\u0648\u0631\u0647\u0627\u06cc \u062a\u0648\u0644\u06cc\u062f\u06cc \u0627\u0633\u062a.<\/li>\n<\/ul>\n\n\n\n<div id=\"Clearing-previous-rules\"><\/div><h3 id=\"gspb_heading-id-gsbp-8fd0641\" class=\"gspb_heading gspb_heading-id-gsbp-8fd0641 \">\u0645\u0631\u062d\u0644\u0647 1: \u067e\u0627\u06a9\u0633\u0627\u0632\u06cc \u0642\u0648\u0627\u0646\u06cc\u0646 \u0642\u0628\u0644\u06cc<\/h3>\n\n\n\n<p id=\"gspb_text-id-gsbp-82fefb0\" class=\"gspb_text gspb_text-id-gsbp-82fefb0 \">\u0627\u0628\u062a\u062f\u0627 \u062a\u0645\u0627\u0645 \u0642\u0648\u0627\u0646\u06cc\u0646 \u0645\u0648\u062c\u0648\u062f \u0631\u0627 \u067e\u0627\u06a9 \u0645\u06cc\u200c\u06a9\u0646\u06cc\u0645 \u062a\u0627 \u0628\u0627 \u06cc\u06a9 \u0635\u0641\u062d\u0647 \u0633\u0641\u06cc\u062f \u0634\u0631\u0648\u0639 \u06a9\u0646\u06cc\u0645:<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro padding-bottom-disabled cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#f6f6f4;--cbp-line-number-width:calc(1 * 0.6 * .875rem);line-height:1rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#282A36\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#282A36;display:none;background-color:#f6f6f4\" aria-label=\"Copy\" data-copied-text=\"Copied!\" data-has-text-button=\"textSimple\" data-inside-header-type=\"headlights\" aria-live=\"polite\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>iptables -F\niptables -F -t nat\niptables -F -t mangle\niptables -X\niptables -Z<\/textarea><\/pre><span class=\"cbp-btn-text\">Copy<\/span><\/span><pre class=\"shiki dracula-soft\" style=\"background-color: #282A36\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #62E884\">iptables<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-F<\/span><\/span>\n<span class=\"line\"><span style=\"color: #62E884\">iptables<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-F<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-t<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">nat<\/span><\/span>\n<span class=\"line\"><span style=\"color: #62E884\">iptables<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-F<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-t<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">mangle<\/span><\/span>\n<span class=\"line\"><span style=\"color: #62E884\">iptables<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-X<\/span><\/span>\n<span class=\"line\"><span style=\"color: #62E884\">iptables<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-Z<\/span><\/span><\/code><\/pre><span style=\"display:flex;align-items:flex-end;padding:10px;width:100%;justify-content:flex-start;background-color:#282A36;color:#ebebe6;font-size:12px;line-height:1;position:relative\"> <\/span><\/div>\n\n\n\n<p id=\"gspb_text-id-gsbp-96318ce\" class=\"gspb_text gspb_text-id-gsbp-96318ce \">\ud83d\udccc \u062a\u0648\u0636\u06cc\u062d: \u062f\u0633\u062a\u0648\u0631 <code>-F<\/code> \u0642\u0648\u0627\u0646\u06cc\u0646 \u062a\u0645\u0627\u0645 \u062c\u062f\u0627\u0648\u0644 (filter\u060c nat \u0648 mangle) \u0631\u0627 \u067e\u0627\u06a9 \u0645\u06cc\u200c\u06a9\u0646\u062f. \u062f\u0633\u062a\u0648\u0631 <code>-X<\/code> \u0632\u0646\u062c\u06cc\u0631\u0647\u200c\u0647\u0627\u06cc \u0633\u0641\u0627\u0631\u0634\u06cc \u062e\u0627\u0644\u06cc \u0631\u0627 \u062d\u0630\u0641 \u0645\u06cc\u200c\u06a9\u0646\u062f \u0648 <code>-Z<\/code> \u0634\u0645\u0627\u0631\u0646\u062f\u0647\u200c\u0647\u0627 \u0631\u0627 \u0635\u0641\u0631 \u0645\u06cc\u200c\u06a9\u0646\u062f.<\/p>\n\n\n\n<div class=\"wp-block-greenshift-blocks-image gspb_image gspb_image-id-gsbp-2487538\" id=\"gspb_image-id-gsbp-2487538\"><img decoding=\"async\" src=\"https:\/\/webdade.com\/blog\/wp-content\/uploads\/2026\/02\/advanced-iptables-configuration-guide1.webp\" data-src=\"\" alt=\"\u067e\u06cc\u06a9\u0631\u0628\u0646\u062f\u06cc \u0641\u0627\u06cc\u0631\u0648\u0627\u0644 \u0644\u06cc\u0646\u0648\u06a9\u0633\" loading=\"lazy\" width=\"910\" height=\"492\"\/><\/div>\n\n\n\n<div id=\"Opening-critical-ports-and-Conntrack\"><\/div><h3 id=\"gspb_heading-id-gsbp-7a62e30\" class=\"gspb_heading gspb_heading-id-gsbp-7a62e30 \">\u0645\u0631\u062d\u0644\u0647 2: \u0628\u0627\u0632 \u06a9\u0631\u062f\u0646 \u067e\u0648\u0631\u062a\u200c\u0647\u0627\u06cc \u062d\u06cc\u0627\u062a\u06cc \u0648 Conntrack<\/h3>\n\n\n\n<p id=\"gspb_text-id-gsbp-bed79f6\" class=\"gspb_text gspb_text-id-gsbp-bed79f6 \">\u0642\u0628\u0644 \u0627\u0632 \u0628\u0633\u062a\u0646 \u0647\u0645\u0647 \u0686\u06cc\u0632\u060c \u0627\u0628\u062a\u062f\u0627 Loopback\u060c \u0627\u062a\u0635\u0627\u0644\u0627\u062a \u0628\u0631\u0642\u0631\u0627\u0631 \u0634\u062f\u0647 (Conntrack) \u0648 \u067e\u0648\u0631\u062a SSH \u0631\u0627 \u0628\u0627\u0632 \u0645\u06cc\u200c\u06a9\u0646\u06cc\u0645. <strong>\u062a\u0631\u062a\u06cc\u0628 \u0627\u06cc\u0646 \u0645\u0631\u0627\u062d\u0644 \u0628\u0633\u06cc\u0627\u0631 \u0645\u0647\u0645 \u0627\u0633\u062a:<\/strong><\/p>\n\n\n\n<div id=\"gspb_text-id-gsbp-527f9e6\" class=\"gspb_text gspb_text-id-gsbp-527f9e6 \"><strong> \ud83d\udc48\u0627\u062c\u0627\u0632\u0647 \u0628\u0647 \u062a\u0631\u0627\u0641\u06cc\u06a9 \u062f\u0627\u062e\u0644\u06cc \u0633\u0631\u0648\u0631 (\u0628\u0633\u06cc\u0627\u0631 \u0645\u0647\u0645)<\/strong><\/div>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro padding-bottom-disabled cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#f6f6f4;--cbp-line-number-width:calc(1 * 0.6 * .875rem);line-height:1rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#282A36\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#282A36;display:none;background-color:#f6f6f4\" aria-label=\"Copy\" data-copied-text=\"Copied!\" data-has-text-button=\"textSimple\" data-inside-header-type=\"headlights\" aria-live=\"polite\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>iptables -A INPUT -i lo -j ACCEPT<\/textarea><\/pre><span class=\"cbp-btn-text\">Copy<\/span><\/span><pre class=\"shiki dracula-soft\" style=\"background-color: #282A36\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #62E884\">iptables<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-A<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">INPUT<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-i<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">lo<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-j<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">ACCEPT<\/span><\/span><\/code><\/pre><span style=\"display:flex;align-items:flex-end;padding:10px;width:100%;justify-content:flex-start;background-color:#282A36;color:#ebebe6;font-size:12px;line-height:1;position:relative\"> <\/span><\/div>\n\n\n\n<div class=\"wp-block-greenshift-blocks-image gspb_image gspb_image-id-gsbp-50d7e11\" id=\"gspb_image-id-gsbp-50d7e11\"><img decoding=\"async\" src=\"https:\/\/webdade.com\/blog\/wp-content\/uploads\/2026\/02\/advanced-iptables-configuration-guide2.webp\" data-src=\"\" alt=\"\u0622\u0645\u0648\u0632\u0634 iptables \u067e\u06cc\u0634\u0631\u0641\u062a\u0647\" loading=\"lazy\" width=\"910\" height=\"492\"\/><\/div>\n\n\n\n<div id=\"gspb_text-id-gsbp-334e0ac\" class=\"gspb_text gspb_text-id-gsbp-334e0ac \"><strong>\ud83d\udc48 \u0627\u062a\u0635\u0627\u0644\u0627\u062a \u0628\u0631\u0642\u0631\u0627\u0631 \u0634\u062f\u0647 \u0648 \u0645\u0631\u062a\u0628\u0637 (Stateful Firewall): <br><\/strong>\u0628\u062f\u0648\u0646 \u0627\u06cc\u0646 \u0642\u0627\u0646\u0648\u0646\u060c \u067e\u0627\u0633\u062e \u062f\u0631\u062e\u0648\u0627\u0633\u062a\u200c\u0647\u0627\u06cc \u062e\u0631\u0648\u062c\u06cc \u0634\u0645\u0627 (\u0645\u062b\u0644 apt update) \u0645\u0633\u062f\u0648\u062f \u0645\u06cc\u200c\u0634\u0648\u062f!<\/div>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro padding-bottom-disabled cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#f6f6f4;--cbp-line-number-width:calc(1 * 0.6 * .875rem);line-height:1rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#282A36\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#282A36;display:none;background-color:#f6f6f4\" aria-label=\"Copy\" data-copied-text=\"Copied!\" data-has-text-button=\"textSimple\" data-inside-header-type=\"headlights\" aria-live=\"polite\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>iptables -A INPUT -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT<\/textarea><\/pre><span class=\"cbp-btn-text\">Copy<\/span><\/span><pre class=\"shiki dracula-soft\" style=\"background-color: #282A36\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #62E884\">iptables<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-A<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">INPUT<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-m<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">conntrack<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">--ctstate<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">ESTABLISHED,RELATED<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-j<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">ACCEPT<\/span><\/span><\/code><\/pre><span style=\"display:flex;align-items:flex-end;padding:10px;width:100%;justify-content:flex-start;background-color:#282A36;color:#ebebe6;font-size:12px;line-height:1;position:relative\"> <\/span><\/div>\n\n\n\n<div id=\"gspb_text-id-gsbp-626d285\" class=\"gspb_text gspb_text-id-gsbp-626d285 \"><strong>\ud83d\udc48 \u062f\u0648\u0631 \u0631\u06cc\u062e\u062a\u0646 \u0628\u0633\u062a\u0647\u200c\u0647\u0627\u06cc \u0646\u0627\u0645\u0639\u062a\u0628<\/strong><\/div>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro padding-bottom-disabled cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#f6f6f4;--cbp-line-number-width:calc(1 * 0.6 * .875rem);line-height:1rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#282A36\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#282A36;display:none;background-color:#f6f6f4\" aria-label=\"Copy\" data-copied-text=\"Copied!\" data-has-text-button=\"textSimple\" data-inside-header-type=\"headlights\" aria-live=\"polite\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>iptables -A INPUT -m conntrack --ctstate INVALID -j DROP<\/textarea><\/pre><span class=\"cbp-btn-text\">Copy<\/span><\/span><pre class=\"shiki dracula-soft\" style=\"background-color: #282A36\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #62E884\">iptables<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-A<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">INPUT<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-m<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">conntrack<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">--ctstate<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">INVALID<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-j<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">DROP<\/span><\/span><\/code><\/pre><span style=\"display:flex;align-items:flex-end;padding:10px;width:100%;justify-content:flex-start;background-color:#282A36;color:#ebebe6;font-size:12px;line-height:1;position:relative\"> <\/span><\/div>\n\n\n\n<div id=\"gspb_text-id-gsbp-a28ba37\" class=\"gspb_text gspb_text-id-gsbp-a28ba37 \"><strong> \ud83d\udc48  \u0628\u0627\u0632 \u06a9\u0631\u062f\u0646 \u067e\u0648\u0631\u062a SSH &#8211; \u06a9\u0644\u0645\u0647 \u06a9\u0644\u06cc\u062f\u06cc: \u0628\u0633\u062a\u0646 \u067e\u0648\u0631\u062a \u062f\u0631 \u0644\u06cc\u0646\u0648\u06a9\u0633 \u0628\u0627 iptables<br><\/strong><\/div>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro padding-bottom-disabled cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#f6f6f4;--cbp-line-number-width:calc(1 * 0.6 * .875rem);line-height:1rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#282A36\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#282A36;display:none;background-color:#f6f6f4\" aria-label=\"Copy\" data-copied-text=\"Copied!\" data-has-text-button=\"textSimple\" data-inside-header-type=\"headlights\" aria-live=\"polite\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>iptables -A INPUT -p tcp --dport 22 -j ACCEPT<\/textarea><\/pre><span class=\"cbp-btn-text\">Copy<\/span><\/span><pre class=\"shiki dracula-soft\" style=\"background-color: #282A36\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #62E884\">iptables<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-A<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">INPUT<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-p<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">tcp<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">--dport<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">22<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-j<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">ACCEPT<\/span><\/span><\/code><\/pre><span style=\"display:flex;align-items:flex-end;padding:10px;width:100%;justify-content:flex-start;background-color:#282A36;color:#ebebe6;font-size:12px;line-height:1;position:relative\"> <\/span><\/div>\n\n\n\n<div class=\"wp-block-greenshift-blocks-container gspb_container gspb_container-gsbp-2c94595\" id=\"gspb_container-id-gsbp-2c94595\">\n<div id=\"gspb_text-id-gsbp-54b7f1e\" class=\"gspb_text gspb_text-id-gsbp-54b7f1e \">\u26a0\ufe0f <strong>\u0647\u0634\u062f\u0627\u0631 \u0628\u0633\u06cc\u0627\u0631 \u0645\u0647\u0645:<\/strong> \u0642\u0627\u0646\u0648\u0646 Conntrack (ESTABLISHED,RELATED) \u0628\u0627\u06cc\u062f \u062d\u062a\u0645\u0627\u064b <strong>\u0642\u0628\u0644 \u0627\u0632<\/strong> \u062a\u063a\u06cc\u06cc\u0631 \u0633\u06cc\u0627\u0633\u062a \u067e\u06cc\u0634\u200c\u0641\u0631\u0636 \u0628\u0647 DROP \u0646\u0648\u0634\u062a\u0647 \u0634\u0648\u062f. \u062f\u0631 \u063a\u06cc\u0631 \u0627\u06cc\u0646 \u0635\u0648\u0631\u062a\u060c \u0627\u062a\u0635\u0627\u0644 \u0641\u0639\u0644\u06cc SSH \u0634\u0645\u0627 \u0642\u0637\u0639 \u062e\u0648\u0627\u0647\u062f \u0634\u062f \u0648 \u062f\u0633\u062a\u0631\u0633\u06cc \u0628\u0647 \u0633\u0631\u0648\u0631 \u0631\u0627 \u0627\u0632 \u062f\u0633\u062a \u0645\u06cc\u200c\u062f\u0647\u06cc\u062f.<\/div>\n<\/div>\n\n\n\n<div id=\"Change-the-default-policy-to-DROP\"><\/div><h3 id=\"gspb_heading-id-gsbp-680be56\" class=\"gspb_heading gspb_heading-id-gsbp-680be56 \">\u0645\u0631\u062d\u0644\u0647 3: \u062a\u063a\u06cc\u06cc\u0631 \u0633\u06cc\u0627\u0633\u062a \u067e\u06cc\u0634\u200c\u0641\u0631\u0636 \u0628\u0647 DROP<\/h3>\n\n\n\n<p id=\"gspb_text-id-gsbp-95d6a1d\" class=\"gspb_text gspb_text-id-gsbp-95d6a1d \">\u062d\u0627\u0644\u0627 \u0628\u0647 \u0641\u0627\u06cc\u0631\u0648\u0627\u0644 \u0645\u06cc\u200c\u06af\u0648\u06cc\u06cc\u0645 \u0647\u0631 \u0686\u06cc\u0632\u06cc \u06a9\u0647 \u0635\u0631\u0627\u062d\u062a\u0627\u064b \u0627\u062c\u0627\u0632\u0647 \u0646\u062f\u0627\u062f\u0647\u200c\u0627\u06cc\u0645 \u0631\u0627 \u062f\u0648\u0631 \u0628\u0631\u06cc\u0632:<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro padding-bottom-disabled cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#f6f6f4;--cbp-line-number-width:calc(1 * 0.6 * .875rem);line-height:1rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#282A36\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#282A36;display:none;background-color:#f6f6f4\" aria-label=\"Copy\" data-copied-text=\"Copied!\" data-has-text-button=\"textSimple\" data-inside-header-type=\"headlights\" aria-live=\"polite\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>iptables -P INPUT DROP\niptables -P FORWARD DROP\niptables -P OUTPUT ACCEPT<\/textarea><\/pre><span class=\"cbp-btn-text\">Copy<\/span><\/span><pre class=\"shiki dracula-soft\" style=\"background-color: #282A36\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #62E884\">iptables<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-P<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">INPUT<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">DROP<\/span><\/span>\n<span class=\"line\"><span style=\"color: #62E884\">iptables<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-P<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">FORWARD<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">DROP<\/span><\/span>\n<span class=\"line\"><span style=\"color: #62E884\">iptables<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-P<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">OUTPUT<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">ACCEPT<\/span><\/span><\/code><\/pre><span style=\"display:flex;align-items:flex-end;padding:10px;width:100%;justify-content:flex-start;background-color:#282A36;color:#ebebe6;font-size:12px;line-height:1;position:relative\"> <\/span><\/div>\n\n\n\n<div class=\"wp-block-greenshift-blocks-image gspb_image gspb_image-id-gsbp-1c9d271\" id=\"gspb_image-id-gsbp-1c9d271\"><img decoding=\"async\" src=\"https:\/\/webdade.com\/blog\/wp-content\/uploads\/2026\/02\/advanced-iptables-configuration-guide3.webp\" data-src=\"\" alt=\"\u0622\u0645\u0648\u0632\u0634 iptables\" loading=\"lazy\" width=\"910\" height=\"492\"\/><\/div>\n\n\n\n<p id=\"gspb_text-id-gsbp-cdb9461\" class=\"gspb_text gspb_text-id-gsbp-cdb9461 \">\ud83d\udccc \u06cc\u0627\u062f\u0622\u0648\u0631\u06cc: \u0628\u0627 \u0627\u062c\u0631\u0627\u06cc \u0627\u06cc\u0646 \u062f\u0633\u062a\u0648\u0631\u060c \u0647\u0631 \u067e\u0648\u0631\u062a\u06cc \u063a\u06cc\u0631 \u0627\u0632 \u06f2\u06f2 \u06a9\u0627\u0645\u0644\u0627\u064b \u0628\u0633\u062a\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f. \u0627\u06af\u0631 \u0648\u0628\u200c\u0633\u0631\u0648\u0631 \u062f\u0627\u0631\u06cc\u062f\u060c \u0628\u0627\u06cc\u062f \u067e\u0648\u0631\u062a 80 \u0648 443 \u0631\u0627 \u0647\u0645 \u0628\u0627\u0632 \u06a9\u0646\u06cc\u062f.<\/p>\n\n\n\n<div id=\"stateful-firewall-conntrack\"><\/div><h2 id=\"gspb_heading-id-gsbp-fbbbc70\" class=\"gspb_heading gspb_heading-id-gsbp-fbbbc70 \">\u0641\u0627\u06cc\u0631\u0648\u0627\u0644 \u0647\u0648\u0634\u0645\u0646\u062f \u0628\u0627 \u0645\u0627\u0698\u0648\u0644 Conntrack (Stateful Inspection)<\/h2>\n\n\n\n<p id=\"gspb_text-id-gsbp-3a3302f\" class=\"gspb_text gspb_text-id-gsbp-3a3302f \">\u0627\u06cc\u0646 \u0628\u062e\u0634 \u0647\u0645\u0627\u0646 \u0686\u06cc\u0632\u06cc \u0627\u0633\u062a \u06a9\u0647 \u0622\u0645\u0648\u0632\u0634 iptables \u067e\u06cc\u0634\u0631\u0641\u062a\u0647 \u0631\u0627 \u0645\u062a\u0645\u0627\u06cc\u0632 \u0645\u06cc\u200c\u06a9\u0646\u062f. \u06cc\u06a9 \u0641\u0627\u06cc\u0631\u0648\u0627\u0644 \u0647\u0648\u0634\u0645\u0646\u062f \u0628\u0627\u06cc\u062f \u0628\u062f\u0627\u0646\u062f \u06a9\u062f\u0627\u0645 \u0628\u0633\u062a\u0647 \u0645\u0631\u0628\u0648\u0637 \u0628\u0647 \u06cc\u06a9 \u06af\u0641\u062a\u06af\u0648\u06cc \u0642\u0628\u0644\u06cc \u0627\u0633\u062a.<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro padding-bottom-disabled cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#f6f6f4;--cbp-line-number-width:calc(1 * 0.6 * .875rem);line-height:1rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#282A36\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#282A36;display:none;background-color:#f6f6f4\" aria-label=\"Copy\" data-copied-text=\"Copied!\" data-has-text-button=\"textSimple\" data-inside-header-type=\"headlights\" aria-live=\"polite\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>iptables -A INPUT -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT<\/textarea><\/pre><span class=\"cbp-btn-text\">Copy<\/span><\/span><pre class=\"shiki dracula-soft\" style=\"background-color: #282A36\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #62E884\">iptables<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-A<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">INPUT<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-m<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">conntrack<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">--ctstate<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">ESTABLISHED,RELATED<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-j<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">ACCEPT<\/span><\/span><\/code><\/pre><span style=\"display:flex;align-items:flex-end;padding:10px;width:100%;justify-content:flex-start;background-color:#282A36;color:#ebebe6;font-size:12px;line-height:1;position:relative\"> <\/span><\/div>\n\n\n\n<p id=\"gspb_text-id-gsbp-7a7003d\" class=\"gspb_text gspb_text-id-gsbp-7a7003d \"><strong>\u0686\u0631\u0627 \u0627\u06cc\u0646 \u062f\u0633\u062a\u0648\u0631 \u0645\u0639\u062c\u0632\u0647 \u0645\u06cc\u200c\u06a9\u0646\u062f\u061f<\/strong><\/p>\n\n\n\n<p id=\"gspb_text-id-gsbp-1dff76f\" class=\"gspb_text gspb_text-id-gsbp-1dff76f \">\u0648\u0642\u062a\u06cc \u0634\u0645\u0627 \u0627\u0632 \u062f\u0627\u062e\u0644 \u0633\u0631\u0648\u0631 \u062f\u0631\u062e\u0648\u0627\u0633\u062a\u06cc \u0628\u0647 \u06af\u0648\u06af\u0644 \u0645\u06cc\u200c\u0641\u0631\u0633\u062a\u06cc\u062f\u060c \u06af\u0648\u06af\u0644 \u067e\u0627\u0633\u062e\u06cc \u0628\u0631\u0645\u06cc\u200c\u06af\u0631\u062f\u0627\u0646\u062f. \u0628\u062f\u0648\u0646 \u0627\u06cc\u0646 \u0642\u0627\u0646\u0648\u0646\u060c \u0641\u0627\u06cc\u0631\u0648\u0627\u0644 \u067e\u0627\u0633\u062e \u06af\u0648\u06af\u0644 \u0631\u0627 \u0686\u0648\u0646 \u0627\u0632 \u0628\u06cc\u0631\u0648\u0646 \u0622\u0645\u062f\u0647 \u0645\u0633\u062f\u0648\u062f \u0645\u06cc\u200c\u06a9\u0646\u062f. \u0627\u0645\u0627 \u0628\u0627 \u0645\u0627\u0698\u0648\u0644 conntrack \u0648 \u0648\u0636\u0639\u06cc\u062a ESTABLISHED (\u0628\u0631\u0642\u0631\u0627\u0631 \u0634\u062f\u0647)\u060c \u0641\u0627\u06cc\u0631\u0648\u0627\u0644 \u0645\u06cc\u200c\u0641\u0647\u0645\u062f \u06a9\u0647 \u0627\u06cc\u0646 \u0628\u0633\u062a\u0647 \u0628\u062e\u0634\u06cc \u0627\u0632 \u06cc\u06a9 \u0645\u06a9\u0627\u0644\u0645\u0647 \u0645\u062c\u0627\u0632 \u0627\u0633\u062a.<\/p>\n\n\n\n<div class=\"wp-block-greenshift-blocks-container gspb_container gspb_container-gsbp-f12e5b6\" id=\"gspb_container-id-gsbp-f12e5b6\">\n<div id=\"gspb_text-id-gsbp-e1cbadd\" class=\"gspb_text gspb_text-id-gsbp-e1cbadd \">\ud83d\udccc \u0646\u06a9\u062a\u0647: \u0647\u0645\u0627\u0646\u200c\u0637\u0648\u0631 \u06a9\u0647 \u062f\u0631 \u0628\u062e\u0634 \u0642\u0628\u0644 \u062f\u06cc\u062f\u06cc\u062f\u060c \u0645\u0627 \u0627\u06cc\u0646 \u0642\u0627\u0646\u0648\u0646 \u0631\u0627 <strong>\u0642\u0628\u0644 \u0627\u0632<\/strong> \u062a\u063a\u06cc\u06cc\u0631 Default Policy \u0628\u0647 DROP \u0646\u0648\u0634\u062a\u06cc\u0645. \u0627\u06cc\u0646 \u062a\u0631\u062a\u06cc\u0628 \u062d\u06cc\u0627\u062a\u06cc \u0627\u0633\u062a \u0648 \u0627\u06af\u0631 \u0631\u0639\u0627\u06cc\u062a \u0646\u0634\u0648\u062f\u060c \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u062f\u0633\u062a\u0631\u0633\u06cc \u0634\u0645\u0627 \u0628\u0647 \u0633\u0631\u0648\u0631 \u0642\u0637\u0639 \u0634\u0648\u062f.<\/div>\n<\/div>\n\n\n\n<div id=\"ddos-prevention-iptables\"><\/div><h2 id=\"gspb_heading-id-gsbp-25fa67c\" class=\"gspb_heading gspb_heading-id-gsbp-25fa67c \">\u062c\u0644\u0648\u06af\u06cc\u0631\u06cc \u0627\u0632 \u062d\u0645\u0644\u0627\u062a DDoS \u0628\u0627 iptables \u0648 Hardening<\/h2>\n\n\n\n<p id=\"gspb_text-id-gsbp-f539f94\" class=\"gspb_text gspb_text-id-gsbp-f539f94 \">\u062d\u0645\u0644\u0627\u062a DDoS \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u0646\u062f \u0628\u0647 \u0631\u0627\u062d\u062a\u06cc \u0645\u0646\u0627\u0628\u0639 \u0633\u0631\u0648\u0631 \u0634\u0645\u0627 \u0631\u0627 \u0628\u0628\u0644\u0639\u0646\u062f. \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0645\u062d\u062f\u0648\u062f \u06a9\u0631\u062f\u0646 \u0646\u0631\u062e \u062f\u0631\u062e\u0648\u0627\u0633\u062a (Rate Limiting) \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u0645 \u062c\u0644\u0648\u06cc \u0627\u06cc\u0646 \u062d\u0645\u0644\u0627\u062a \u0631\u0627 \u0628\u06af\u06cc\u0631\u06cc\u0645.<\/p>\n\n\n\n<div class=\"wp-block-greenshift-blocks-container gspb_container gspb_container-gsbp-73e4a3d\" id=\"gspb_container-id-gsbp-73e4a3d\">\n<div id=\"gspb_text-id-gsbp-d07de06\" class=\"gspb_text gspb_text-id-gsbp-d07de06 \"><strong>\u0646\u06a9\u062a\u0647 \u0645\u0647\u0645:<\/strong> \u0642\u0648\u0627\u0646\u06cc\u0646 Rate Limiting \u0628\u0627\u06cc\u062f <strong>\u0642\u0628\u0644 \u0627\u0632<\/strong> \u0642\u0648\u0627\u0646\u06cc\u0646 ACCEPT \u067e\u0648\u0631\u062a\u200c\u0647\u0627\u06cc \u0633\u0631\u0648\u06cc\u0633\u200c\u062f\u0647\u0646\u062f\u0647 (\u0645\u062b\u0644 80 \u0648 443) \u0642\u0631\u0627\u0631 \u0628\u06af\u06cc\u0631\u0646\u062f \u062a\u0627 \u0645\u0624\u062b\u0631 \u0628\u0627\u0634\u0646\u062f. \u0627\u06af\u0631 \u0628\u0639\u062f \u0627\u0632 ACCEPT \u0642\u0631\u0627\u0631 \u0628\u06af\u06cc\u0631\u0646\u062f\u060c \u0628\u0633\u062a\u0647\u200c\u0647\u0627 \u0642\u0628\u0644\u0627\u064b \u067e\u0630\u06cc\u0631\u0641\u062a\u0647 \u0634\u062f\u0647\u200c\u0627\u0646\u062f \u0648 Rate Limiting \u0647\u06cc\u0686 \u062a\u0623\u062b\u06cc\u0631\u06cc \u0646\u062e\u0648\u0627\u0647\u062f \u062f\u0627\u0634\u062a.<\/div>\n<\/div>\n\n\n\n<div id=\"Prevent-SYN-Floods\"><\/div><h3 id=\"gspb_heading-id-gsbp-0b015d5\" class=\"gspb_heading gspb_heading-id-gsbp-0b015d5 \">1- \u062c\u0644\u0648\u06af\u06cc\u0631\u06cc \u0627\u0632 SYN Flood<\/h3>\n\n\n\n<p id=\"gspb_text-id-gsbp-28d3408\" class=\"gspb_text gspb_text-id-gsbp-28d3408 \">\u0628\u0631\u0627\u06cc \u0645\u062d\u062f\u0648\u062f \u06a9\u0631\u062f\u0646 \u062a\u0639\u062f\u0627\u062f \u0627\u062a\u0635\u0627\u0644\u0627\u062a \u062c\u062f\u06cc\u062f TCP:<br>\u0627\u06cc\u0646 \u0642\u0627\u0646\u0648\u0646 \u0628\u0627\u06cc\u062f \u0642\u0628\u0644 \u0627\u0632 ACCEPT \u067e\u0648\u0631\u062a\u200c\u0647\u0627\u06cc 80 \u0648 443 \u0642\u0631\u0627\u0631 \u0628\u06af\u06cc\u0631\u062f<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro padding-bottom-disabled cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#f6f6f4;--cbp-line-number-width:calc(1 * 0.6 * .875rem);line-height:1rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#282A36\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#282A36;display:none;background-color:#f6f6f4\" aria-label=\"Copy\" data-copied-text=\"Copied!\" data-has-text-button=\"textSimple\" data-inside-header-type=\"headlights\" aria-live=\"polite\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>iptables -A INPUT -p tcp --syn -m limit --limit 10\/s --limit-burst 20 -j ACCEPT\niptables -A INPUT -p tcp --syn -j DROP<\/textarea><\/pre><span class=\"cbp-btn-text\">Copy<\/span><\/span><pre class=\"shiki dracula-soft\" style=\"background-color: #282A36\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #62E884\">iptables<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-A<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">INPUT<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-p<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">tcp<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">--syn<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-m<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">limit<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">--limit<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">10<\/span><span style=\"color: #E7EE98\">\/s<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">--limit-burst<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">20<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-j<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">ACCEPT<\/span><\/span>\n<span class=\"line\"><span style=\"color: #62E884\">iptables<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-A<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">INPUT<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-p<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">tcp<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">--syn<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-j<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">DROP<\/span><\/span><\/code><\/pre><span style=\"display:flex;align-items:flex-end;padding:10px;width:100%;justify-content:flex-start;background-color:#282A36;color:#ebebe6;font-size:12px;line-height:1;position:relative\"> <\/span><\/div>\n\n\n\n<div id=\"Prevent -Ping-Flood-ICMP-Limit\"><\/div><h3 id=\"gspb_heading-id-gsbp-5144c0e\" class=\"gspb_heading gspb_heading-id-gsbp-5144c0e \">2- \u062c\u0644\u0648\u06af\u06cc\u0631\u06cc \u0627\u0632 Ping Flood (ICMP Limit)<\/h3>\n\n\n\n<p id=\"gspb_text-id-gsbp-af36973\" class=\"gspb_text gspb_text-id-gsbp-af36973 \">\u0627\u06af\u0631 \u0646\u0645\u06cc\u200c\u062e\u0648\u0627\u0647\u06cc\u062f \u0633\u0631\u0648\u0631\u062a\u0627\u0646 \u0628\u0627 \u0633\u06cc\u0644 \u062f\u0631\u062e\u0648\u0627\u0633\u062a\u200c\u0647\u0627\u06cc \u067e\u06cc\u0646\u06af \u0627\u0632 \u06a9\u0627\u0631 \u0628\u06cc\u0641\u062a\u062f:<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro padding-bottom-disabled cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#f6f6f4;--cbp-line-number-width:calc(1 * 0.6 * .875rem);line-height:1rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#282A36\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#282A36;display:none;background-color:#f6f6f4\" aria-label=\"Copy\" data-copied-text=\"Copied!\" data-has-text-button=\"textSimple\" data-inside-header-type=\"headlights\" aria-live=\"polite\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>iptables -A INPUT -p icmp --icmp-type echo-request -m limit --limit 1\/s --limit-burst 5 -j ACCEPT\niptables -A INPUT -p icmp --icmp-type echo-request -j DROP<\/textarea><\/pre><span class=\"cbp-btn-text\">Copy<\/span><\/span><pre class=\"shiki dracula-soft\" style=\"background-color: #282A36\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #62E884\">iptables<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-A<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">INPUT<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-p<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">icmp<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">--icmp-type<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">echo-request<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-m<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">limit<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">--limit<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">1<\/span><span style=\"color: #E7EE98\">\/s<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">--limit-burst<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">5<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-j<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">ACCEPT<\/span><\/span>\n<span class=\"line\"><span style=\"color: #62E884\">iptables<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-A<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">INPUT<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-p<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">icmp<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">--icmp-type<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">echo-request<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-j<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">DROP<\/span><\/span><\/code><\/pre><span style=\"display:flex;align-items:flex-end;padding:10px;width:100%;justify-content:flex-start;background-color:#282A36;color:#ebebe6;font-size:12px;line-height:1;position:relative\"> <\/span><\/div>\n\n\n\n<p>\u0627\u06cc\u0646 \u0642\u0627\u0646\u0648\u0646 \u06cc\u0639\u0646\u06cc: \u062d\u062f\u0627\u06a9\u062b\u0631 \u06f1 \u067e\u06cc\u0646\u06af \u062f\u0631 \u062b\u0627\u0646\u06cc\u0647 \u0642\u0628\u0648\u0644 \u06a9\u0646\u060c \u0628\u0627 \u0642\u0627\u0628\u0644\u06cc\u062a \u062a\u062d\u0645\u0644 5 \u067e\u06cc\u0646\u06af \u0646\u0627\u06af\u0647\u0627\u0646\u06cc. \u0628\u0633\u062a\u0647\u200c\u0647\u0627\u06cc \u0628\u06cc\u0634\u062a\u0631 DROP \u0645\u06cc\u200c\u0634\u0648\u0646\u062f.<\/p>\n\n\n\n<div class=\"wp-block-greenshift-blocks-image gspb_image gspb_image-id-gsbp-61dacb4\" id=\"gspb_image-id-gsbp-61dacb4\"><img decoding=\"async\" src=\"https:\/\/webdade.com\/blog\/wp-content\/uploads\/2026\/02\/advanced-iptables-configuration-guide4.webp\" data-src=\"\" alt=\"\u067e\u06cc\u06a9\u0631\u0628\u0646\u062f\u06cc \u0641\u0627\u06cc\u0631\u0648\u0627\u0644 \u0644\u06cc\u0646\u0648\u06a9\u0633\" loading=\"lazy\" width=\"910\" height=\"492\"\/><\/div>\n\n\n\n<div id=\"Port-Scanning\"><\/div><h3 id=\"gspb_heading-id-gsbp-aac6cd9\" class=\"gspb_heading gspb_heading-id-gsbp-aac6cd9 \">3- \u0645\u0642\u0627\u0628\u0644\u0647 \u0628\u0627 Port Scanning<\/h3>\n\n\n\n<p id=\"gspb_text-id-gsbp-6288c38\" class=\"gspb_text gspb_text-id-gsbp-6288c38 \">\u0647\u06a9\u0631\u0647\u0627 \u0645\u0639\u0645\u0648\u0644\u0627\u064b \u0642\u0628\u0644 \u0627\u0632 \u062d\u0645\u0644\u0647\u060c \u062a\u0645\u0627\u0645 \u067e\u0648\u0631\u062a\u200c\u0647\u0627\u06cc \u0634\u0645\u0627 \u0631\u0627 \u0627\u0633\u06a9\u0646 \u0645\u06cc\u200c\u06a9\u0646\u0646\u062f. \u0628\u0627 \u0634\u0646\u0627\u0633\u0627\u06cc\u06cc \u0628\u0633\u062a\u0647\u200c\u0647\u0627\u06cc TCP \u0628\u0627 \u0641\u0644\u06af\u200c\u0647\u0627\u06cc \u063a\u06cc\u0631\u0639\u0627\u062f\u06cc \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u0645 \u0627\u0633\u06a9\u0646\u200c\u0647\u0627\u06cc \u0631\u0627\u06cc\u062c \u0631\u0627 \u0645\u0633\u062f\u0648\u062f \u06a9\u0646\u06cc\u0645:<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro padding-bottom-disabled cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#f6f6f4;--cbp-line-number-width:calc(1 * 0.6 * .875rem);line-height:1rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#282A36\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#282A36;display:none;background-color:#f6f6f4\" aria-label=\"Copy\" data-copied-text=\"Copied!\" data-has-text-button=\"textSimple\" data-inside-header-type=\"headlights\" aria-live=\"polite\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly># \u0628\u0633\u062a\u0646 \u0627\u0633\u06a9\u0646\u200c\u0647\u0627\u06cc Null (\u0628\u062f\u0648\u0646 \u0641\u0644\u06af)\niptables -A INPUT -p tcp --tcp-flags ALL NONE -j DROP\n\n# \u0628\u0633\u062a\u0646 \u0627\u0633\u06a9\u0646\u200c\u0647\u0627\u06cc XMAS (\u0641\u0644\u06af\u200c\u0647\u0627\u06cc FIN\u060c PSH \u0648 URG \u0647\u0645\u0632\u0645\u0627\u0646)\niptables -A INPUT -p tcp --tcp-flags ALL FIN,PSH,URG -j DROP\n\n# \u0628\u0633\u062a\u0646 \u062a\u0631\u06a9\u06cc\u0628\u200c\u0647\u0627\u06cc \u063a\u06cc\u0631\u0645\u062c\u0627\u0632 SYN\/FIN \u0648 SYN\/RST\niptables -A INPUT -p tcp --tcp-flags SYN,FIN SYN,FIN -j DROP\niptables -A INPUT -p tcp --tcp-flags SYN,RST SYN,RST -j DROP<\/textarea><\/pre><span class=\"cbp-btn-text\">Copy<\/span><\/span><pre class=\"shiki dracula-soft\" style=\"background-color: #282A36\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #7B7F8B\"># \u0628\u0633\u062a\u0646 \u0627\u0633\u06a9\u0646\u200c\u0647\u0627\u06cc Null (\u0628\u062f\u0648\u0646 \u0641\u0644\u06af)<\/span><\/span>\n<span class=\"line\"><span style=\"color: #62E884\">iptables<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-A<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">INPUT<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-p<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">tcp<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">--tcp-flags<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">ALL<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">NONE<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-j<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">DROP<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #7B7F8B\"># \u0628\u0633\u062a\u0646 \u0627\u0633\u06a9\u0646\u200c\u0647\u0627\u06cc XMAS (\u0641\u0644\u06af\u200c\u0647\u0627\u06cc FIN\u060c PSH \u0648 URG \u0647\u0645\u0632\u0645\u0627\u0646)<\/span><\/span>\n<span class=\"line\"><span style=\"color: #62E884\">iptables<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-A<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">INPUT<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-p<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">tcp<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">--tcp-flags<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">ALL<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">FIN,PSH,URG<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-j<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">DROP<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #7B7F8B\"># \u0628\u0633\u062a\u0646 \u062a\u0631\u06a9\u06cc\u0628\u200c\u0647\u0627\u06cc \u063a\u06cc\u0631\u0645\u062c\u0627\u0632 SYN\/FIN \u0648 SYN\/RST<\/span><\/span>\n<span class=\"line\"><span style=\"color: #62E884\">iptables<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-A<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">INPUT<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-p<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">tcp<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">--tcp-flags<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">SYN,FIN<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">SYN,FIN<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-j<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">DROP<\/span><\/span>\n<span class=\"line\"><span style=\"color: #62E884\">iptables<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-A<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">INPUT<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-p<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">tcp<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">--tcp-flags<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">SYN,RST<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">SYN,RST<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-j<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">DROP<\/span><\/span><\/code><\/pre><span style=\"display:flex;align-items:flex-end;padding:10px;width:100%;justify-content:flex-start;background-color:#282A36;color:#ebebe6;font-size:12px;line-height:1;position:relative\"> <\/span><\/div>\n\n\n\n<p id=\"gspb_text-id-gsbp-9f599ec\" class=\"gspb_text gspb_text-id-gsbp-9f599ec \">\ud83d\udccc \u062a\u0648\u0636\u06cc\u062d: \u0627\u06cc\u0646 \u0642\u0648\u0627\u0646\u06cc\u0646 \u0628\u0633\u062a\u0647\u200c\u0647\u0627\u06cc\u06cc \u0631\u0627 \u0647\u062f\u0641 \u0645\u06cc\u200c\u06af\u06cc\u0631\u0646\u062f \u06a9\u0647 \u0641\u0644\u06af\u200c\u0647\u0627\u06cc TCP \u0622\u0646\u200c\u0647\u0627 \u062f\u0631 \u062a\u0631\u0627\u0641\u06cc\u06a9 \u0639\u0627\u062f\u06cc \u0648\u062c\u0648\u062f \u0646\u062f\u0627\u0631\u062f \u0648 \u0645\u0639\u0645\u0648\u0644\u0627\u064b \u0646\u0634\u0627\u0646\u0647 \u0627\u0633\u06a9\u0646\u200c\u0647\u0627\u06cc Nmap \u0647\u0633\u062a\u0646\u062f.<\/p>\n\n\n\n<div id=\"Limiting-the-number-of-connections-in-iptables\"><\/div><h3 id=\"gspb_heading-id-gsbp-573f118\" class=\"gspb_heading gspb_heading-id-gsbp-573f118 \">4- \u0645\u062d\u062f\u0648\u062f \u06a9\u0631\u062f\u0646 \u062a\u0639\u062f\u0627\u062f \u06a9\u0627\u0646\u06a9\u0634\u0646\u200c\u0647\u0627 \u062f\u0631 iptables<\/h3>\n\n\n\n<p id=\"gspb_text-id-gsbp-a5df3af\" class=\"gspb_text gspb_text-id-gsbp-a5df3af \">\u0628\u0631\u0627\u06cc \u062c\u0644\u0648\u06af\u06cc\u0631\u06cc \u0627\u0632 \u062d\u0645\u0644\u0647 \u0628\u0647 \u0648\u0628\u200c\u0633\u0631\u0648\u0631\u060c \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u0645 \u062a\u0639\u062f\u0627\u062f \u0627\u062a\u0635\u0627\u0644\u0627\u062a \u0647\u0645\u0632\u0645\u0627\u0646 \u0627\u0632 \u0647\u0631 \u0622\u06cc\u200c\u067e\u06cc \u0631\u0627 \u0645\u062d\u062f\u0648\u062f \u06a9\u0646\u06cc\u0645:<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro padding-bottom-disabled cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#f6f6f4;--cbp-line-number-width:calc(1 * 0.6 * .875rem);line-height:1rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#282A36\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#282A36;display:none;background-color:#f6f6f4\" aria-label=\"Copy\" data-copied-text=\"Copied!\" data-has-text-button=\"textSimple\" data-inside-header-type=\"headlights\" aria-live=\"polite\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>iptables -A INPUT -p tcp --syn --dport 80 -m connlimit --connlimit-above 20 -j DROP\niptables -A INPUT -p tcp --syn --dport 443 -m connlimit --connlimit-above 20 -j DROP<\/textarea><\/pre><span class=\"cbp-btn-text\">Copy<\/span><\/span><pre class=\"shiki dracula-soft\" style=\"background-color: #282A36\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #62E884\">iptables<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-A<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">INPUT<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-p<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">tcp<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">--syn<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">--dport<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">80<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-m<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">connlimit<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">--connlimit-above<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">20<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-j<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">DROP<\/span><\/span>\n<span class=\"line\"><span style=\"color: #62E884\">iptables<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-A<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">INPUT<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-p<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">tcp<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">--syn<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">--dport<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">443<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-m<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">connlimit<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">--connlimit-above<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">20<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-j<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">DROP<\/span><\/span><\/code><\/pre><span style=\"display:flex;align-items:flex-end;padding:10px;width:100%;justify-content:flex-start;background-color:#282A36;color:#ebebe6;font-size:12px;line-height:1;position:relative\"> <\/span><\/div>\n\n\n\n<div class=\"wp-block-greenshift-blocks-container gspb_container gspb_container-gsbp-a54ae49\" id=\"gspb_container-id-gsbp-a54ae49\">\n<div id=\"gspb_text-id-gsbp-735e058\" class=\"gspb_text gspb_text-id-gsbp-735e058 \">\ud83d\udccc \u0646\u06a9\u062a\u0647: \u062f\u0631 \u0634\u0631\u0627\u06cc\u0637 DDoS \u0627\u0632 <code>DROP<\/code> \u0628\u0647 \u062c\u0627\u06cc <code>REJECT<\/code> \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f. \u0686\u0648\u0646 <code>REJECT<\/code> \u06cc\u06a9 \u067e\u0627\u0633\u062e RST \u0628\u0647 \u0645\u0647\u0627\u062c\u0645 \u0628\u0631\u0645\u06cc\u200c\u06af\u0631\u062f\u0627\u0646\u062f \u0648 \u062e\u0648\u062f\u0634 \u067e\u0647\u0646\u0627\u06cc \u0628\u0627\u0646\u062f \u0645\u0635\u0631\u0641 \u0645\u06cc\u200c\u06a9\u0646\u062f.<\/div>\n<\/div>\n\n\n\n<div id=\"iptables-limitations\"><\/div><h2 id=\"gspb_heading-id-gsbp-e018609\" class=\"gspb_heading gspb_heading-id-gsbp-e018609 \">\u0686\u0627\u0644\u0634\u200c\u0647\u0627 \u0648 \u0646\u06a9\u0627\u062a \u0627\u062d\u062a\u06cc\u0627\u0637 \u062f\u0631 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 iptables<\/h2>\n\n\n\n<p id=\"gspb_text-id-gsbp-a0e43a0\" class=\"gspb_text gspb_text-id-gsbp-a0e43a0 \">\u0628\u0627 \u0648\u062c\u0648\u062f \u0642\u062f\u0631\u062a \u0628\u0627\u0644\u0627\u060c iptables \u0645\u0639\u0627\u06cc\u0628\u06cc \u0647\u0645 \u062f\u0627\u0631\u062f \u06a9\u0647 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u06cc\u06a9 \u0645\u062a\u062e\u0635\u0635 \u0628\u0627\u06cc\u062f \u0628\u062f\u0627\u0646\u06cc\u062f:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u062a\u0631\u062a\u06cc\u0628 \u0642\u0648\u0627\u0646\u06cc\u0646:<\/strong> \u0642\u0648\u0627\u0646\u06cc\u0646 \u0627\u0632 \u0628\u0627\u0644\u0627 \u0628\u0647 \u067e\u0627\u06cc\u06cc\u0646 \u062e\u0648\u0627\u0646\u062f\u0647 \u0645\u06cc\u200c\u0634\u0648\u0646\u062f. \u0627\u06af\u0631 \u0642\u0627\u0646\u0648\u0646 \u0627\u0648\u0644 &#8220;\u0628\u0633\u062a\u0646 \u0647\u0645\u0647 \u0686\u06cc\u0632&#8221; \u0628\u0627\u0634\u062f\u060c \u0642\u0648\u0627\u0646\u06cc\u0646 \u0628\u0639\u062f\u06cc \u0647\u0631\u06af\u0632 \u0627\u062c\u0631\u0627 \u0646\u0645\u06cc\u200c\u0634\u0648\u0646\u062f.<\/li>\n\n\n\n<li><strong>\u0639\u0645\u0644\u06a9\u0631\u062f \u062f\u0631 \u062a\u0631\u0627\u0641\u06cc\u06a9 \u0628\u0633\u06cc\u0627\u0631 \u0633\u0646\u06af\u06cc\u0646:<\/strong> \u062f\u0631 \u062d\u0645\u0644\u0627\u062a \u0639\u0638\u06cc\u0645 (\u0686\u0646\u062f\u06cc\u0646 \u0645\u06cc\u0644\u06cc\u0648\u0646 \u0628\u0633\u062a\u0647 \u062f\u0631 \u062b\u0627\u0646\u06cc\u0647)\u060c iptables \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0628\u0627\u0639\u062b \u062f\u0631\u06af\u06cc\u0631\u06cc \u0628\u0627\u0644\u0627\u06cc CPU \u0634\u0648\u062f. \u062f\u0631 \u0627\u06cc\u0646 \u0634\u0631\u0627\u06cc\u0637\u060c \u062a\u0641\u0627\u0648\u062a iptables \u0648 nftables \u0645\u0634\u062e\u0635 \u0645\u06cc\u200c\u0634\u0648\u062f\u061b nftables \u0646\u0633\u062e\u0647 \u0645\u062f\u0631\u0646\u200c\u062a\u0631 \u0648 \u0633\u0631\u06cc\u0639\u200c\u062a\u0631 \u0627\u0633\u062a.<\/li>\n\n\n\n<li><strong>\u0641\u0631\u0627\u0645\u0648\u0634\u06cc \u0630\u062e\u06cc\u0631\u0647\u200c\u0633\u0627\u0632\u06cc:<\/strong> \u0642\u0648\u0627\u0646\u06cc\u0646 iptables \u062f\u0631 \u062d\u0627\u0641\u0638\u0647 RAM \u0647\u0633\u062a\u0646\u062f \u0648 \u0628\u0627 \u0631\u06cc\u0628\u0648\u062a \u067e\u0627\u06a9 \u0645\u06cc\u200c\u0634\u0648\u0646\u062f.<\/li>\n\n\n\n<li><strong>\u067e\u064f\u0631 \u0634\u062f\u0646 \u062c\u062f\u0648\u0644 Conntrack:<\/strong> \u062f\u0631 \u062a\u0631\u0627\u0641\u06cc\u06a9 \u0633\u0646\u06af\u06cc\u0646\u060c \u062c\u062f\u0648\u0644 conntrack \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u067e\u064f\u0631 \u0634\u0648\u062f \u0648 \u0628\u0627\u0639\u062b DROP \u0634\u062f\u0646 \u0646\u0627\u062e\u0648\u0627\u0633\u062a\u0647 \u0628\u0633\u062a\u0647\u200c\u0647\u0627\u06cc \u062c\u062f\u06cc\u062f \u0628\u062f\u0648\u0646 \u0647\u06cc\u0686 \u0642\u0627\u0646\u0648\u0646 \u0635\u0631\u06cc\u062d\u06cc \u0634\u0648\u062f. \u0645\u0642\u062f\u0627\u0631 \u067e\u06cc\u0634\u200c\u0641\u0631\u0636 \u0631\u0627 \u0628\u0627 <code>sysctl net.netfilter.nf_conntrack_max<\/code> \u0628\u0631\u0631\u0633\u06cc \u06a9\u0646\u06cc\u062f \u0648 \u062f\u0631 \u0635\u0648\u0631\u062a \u0646\u06cc\u0627\u0632 \u0627\u0641\u0632\u0627\u06cc\u0634 \u062f\u0647\u06cc\u062f.<\/li>\n<\/ul>\n\n\n\n<div id=\"make-iptables-persistent\"><\/div><h2 id=\"gspb_heading-id-gsbp-9f61ed5\" class=\"gspb_heading gspb_heading-id-gsbp-9f61ed5 \">\u0686\u06af\u0648\u0646\u0647 \u0642\u0648\u0627\u0646\u06cc\u0646 iptables \u0631\u0627 \u062f\u0627\u0626\u0645\u06cc \u06a9\u0646\u06cc\u0645\u061f<\/h2>\n\n\n\n<p id=\"gspb_text-id-gsbp-701291b\" class=\"gspb_text gspb_text-id-gsbp-701291b \">\u06cc\u06a9\u06cc \u0627\u0632 \u0628\u06cc\u0634\u062a\u0631\u06cc\u0646 \u0633\u0648\u0627\u0644\u0627\u062a \u06a9\u0627\u0631\u0628\u0631\u0627\u0646 \u0627\u06cc\u0646 \u0627\u0633\u062a: &#8220;\u0686\u0631\u0627 \u0628\u0639\u062f \u0627\u0632 \u0631\u06cc\u0633\u062a\u0627\u0631\u062a \u0633\u0631\u0648\u0631\u060c \u062a\u0646\u0638\u06cc\u0645\u0627\u062a \u0645\u0646 \u067e\u0627\u06a9 \u0634\u062f\u061f&#8221;. \u0628\u0631\u0627\u06cc \u062d\u0644 \u0627\u06cc\u0646 \u0645\u0634\u06a9\u0644 \u062f\u0631 \u0627\u0648\u0628\u0648\u0646\u062a\u0648 \u0648 \u062f\u0628\u06cc\u0627\u0646:<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro padding-bottom-disabled cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#f6f6f4;--cbp-line-number-width:calc(1 * 0.6 * .875rem);line-height:1rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#282A36\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#282A36;display:none;background-color:#f6f6f4\" aria-label=\"Copy\" data-copied-text=\"Copied!\" data-has-text-button=\"textSimple\" data-inside-header-type=\"headlights\" aria-live=\"polite\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>sudo apt install iptables-persistent\n\n# \u0628\u0631\u0627\u06cc \u0630\u062e\u06cc\u0631\u0647 \u0642\u0648\u0627\u0646\u06cc\u0646 \u0641\u0639\u0644\u06cc:\nsudo netfilter-persistent save<\/textarea><\/pre><span class=\"cbp-btn-text\">Copy<\/span><\/span><pre class=\"shiki dracula-soft\" style=\"background-color: #282A36\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #62E884\">sudo<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">apt<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">install<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">iptables-persistent<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #7B7F8B\"># \u0628\u0631\u0627\u06cc \u0630\u062e\u06cc\u0631\u0647 \u0642\u0648\u0627\u0646\u06cc\u0646 \u0641\u0639\u0644\u06cc:<\/span><\/span>\n<span class=\"line\"><span style=\"color: #62E884\">sudo<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">netfilter-persistent<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">save<\/span><\/span><\/code><\/pre><span style=\"display:flex;align-items:flex-end;padding:10px;width:100%;justify-content:flex-start;background-color:#282A36;color:#ebebe6;font-size:12px;line-height:1;position:relative\"> <\/span><\/div>\n\n\n\n<div class=\"wp-block-greenshift-blocks-image gspb_image gspb_image-id-gsbp-d87d757\" id=\"gspb_image-id-gsbp-d87d757\"><img decoding=\"async\" src=\"https:\/\/webdade.com\/blog\/wp-content\/uploads\/2026\/02\/advanced-iptables-configuration-guide5.webp\" data-src=\"\" alt=\"\u0622\u0645\u0648\u0632\u0634 iptables\" loading=\"lazy\" width=\"910\" height=\"492\"\/><\/div>\n\n\n\n<p id=\"gspb_text-id-gsbp-a1eada2\" class=\"gspb_text gspb_text-id-gsbp-a1eada2 \">\u062f\u0631 \u0633\u06cc\u0633\u062a\u0645\u200c\u0647\u0627\u06cc CentOS\u060c \u0627\u0632 \u062f\u0633\u062a\u0648\u0631 <code>service iptables save<\/code> \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f.<\/p>\n\n\n\n<div id=\"golden-security-script\"><\/div><h2 id=\"gspb_heading-id-gsbp-c9f3916\" class=\"gspb_heading gspb_heading-id-gsbp-c9f3916 \">\u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0637\u0644\u0627\u06cc\u06cc \u0627\u0645\u0646\u06cc\u062a \u0633\u0631\u0648\u0631 (WebDade Shield)<\/h2>\n\n\n\n<p id=\"gspb_text-id-gsbp-d3b1ea6\" class=\"gspb_text gspb_text-id-gsbp-d3b1ea6 \">\u062f\u0631 \u0627\u06cc\u0646 \u0628\u062e\u0634\u060c \u062a\u0645\u0627\u0645 \u0622\u0645\u0648\u062e\u062a\u0647\u200c\u0647\u0627\u06cc \u0628\u0627\u0644\u0627 \u0631\u0627 \u062f\u0631 \u06cc\u06a9 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0622\u0645\u0627\u062f\u0647 \u0628\u0631\u0627\u06cc \u0634\u0645\u0627 \u062c\u0645\u0639\u200c\u0622\u0648\u0631\u06cc \u06a9\u0631\u062f\u0647\u200c\u0627\u06cc\u0645. \u06a9\u0627\u0641\u06cc\u0633\u062a \u06cc\u06a9 \u0641\u0627\u06cc\u0644 \u0628\u0627 \u067e\u0633\u0648\u0646\u062f .sh \u0628\u0633\u0627\u0632\u06cc\u062f \u0648 \u0622\u0646 \u0631\u0627 \u0627\u062c\u0631\u0627 \u06a9\u0646\u06cc\u062f.<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro padding-bottom-disabled cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#f6f6f4;--cbp-line-number-width:calc(2 * 0.6 * .875rem);line-height:1rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#282A36\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#282A36;display:none;background-color:#f6f6f4\" aria-label=\"Copy\" data-copied-text=\"Copied!\" data-has-text-button=\"textSimple\" data-inside-header-type=\"headlights\" aria-live=\"polite\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>#!\/bin\/bash\n# WebDade Advanced Firewall Script 2025\n# ======================================\n\n# 1. \u067e\u0627\u06a9\u0633\u0627\u0632\u06cc \u06a9\u0627\u0645\u0644 \u0642\u0648\u0627\u0646\u06cc\u0646 \u0642\u0628\u0644\u06cc\niptables -F\niptables -F -t nat\niptables -F -t mangle\niptables -X\niptables -Z\n\n# 2. \u0627\u062c\u0627\u0632\u0647 \u0628\u0647 \u062a\u0631\u0627\u0641\u06cc\u06a9 Loopback\niptables -A INPUT -i lo -j ACCEPT\n\n# 3. \u0641\u0627\u06cc\u0631\u0648\u0627\u0644 \u0647\u0648\u0634\u0645\u0646\u062f (Stateful) - \u0628\u0627\u06cc\u062f \u0642\u0628\u0644 \u0627\u0632 \u0647\u0645\u0647 \u0628\u0627\u0634\u062f\niptables -A INPUT -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT\niptables -A INPUT -m conntrack --ctstate INVALID -j DROP\n\n# 4. \u0645\u062d\u0627\u0641\u0638\u062a \u062f\u0631 \u0628\u0631\u0627\u0628\u0631 \u0627\u0633\u06a9\u0646 \u067e\u0648\u0631\u062a (\u0628\u0633\u062a\u0647\u200c\u0647\u0627\u06cc \u063a\u06cc\u0631\u0639\u0627\u062f\u06cc TCP)\niptables -A INPUT -p tcp --tcp-flags ALL NONE -j DROP\niptables -A INPUT -p tcp --tcp-flags ALL FIN,PSH,URG -j DROP\niptables -A INPUT -p tcp --tcp-flags SYN,FIN SYN,FIN -j DROP\niptables -A INPUT -p tcp --tcp-flags SYN,RST SYN,RST -j DROP\n\n# 5. \u0645\u062d\u062f\u0648\u062f \u06a9\u0631\u062f\u0646 SYN Flood (Rate Limiting)\niptables -A INPUT -p tcp --syn -m limit --limit 10\/s --limit-burst 20 -j ACCEPT\niptables -A INPUT -p tcp --syn -j DROP\n\n# 6. \u0645\u062d\u062f\u0648\u062f \u06a9\u0631\u062f\u0646 ICMP (Ping Flood)\niptables -A INPUT -p icmp --icmp-type echo-request -m limit --limit 1\/s --limit-burst 5 -j ACCEPT\niptables -A INPUT -p icmp --icmp-type echo-request -j DROP\n\n# 7. \u0645\u062d\u062f\u0648\u062f \u06a9\u0631\u062f\u0646 \u06a9\u0627\u0646\u06a9\u0634\u0646 \u0647\u0645\u0632\u0645\u0627\u0646 \u0631\u0648\u06cc \u067e\u0648\u0631\u062a\u200c\u0647\u0627\u06cc \u0648\u0628\niptables -A INPUT -p tcp --syn --dport 80 -m connlimit --connlimit-above 20 -j DROP\niptables -A INPUT -p tcp --syn --dport 443 -m connlimit --connlimit-above 20 -j DROP\n\n# 8. \u0628\u0627\u0632 \u06a9\u0631\u062f\u0646 \u067e\u0648\u0631\u062a\u200c\u0647\u0627\u06cc \u0636\u0631\u0648\u0631\u06cc\niptables -A INPUT -p tcp --dport 22 -j ACCEPT   # SSH\niptables -A INPUT -p tcp --dport 80 -j ACCEPT   # HTTP\niptables -A INPUT -p tcp --dport 443 -j ACCEPT  # HTTPS\n\n# 9. \u0628\u0633\u062a\u0646 \u0628\u0642\u06cc\u0647 \u062a\u0631\u0627\u0641\u06cc\u06a9 (Default Policy)\niptables -P INPUT DROP\niptables -P FORWARD DROP\niptables -P OUTPUT ACCEPT\n\necho \"\u2705 Security applied successfully! - WebDade.com\"\necho \"\ud83d\udccc \u0628\u0631\u0627\u06cc \u062f\u0627\u0626\u0645\u06cc \u06a9\u0631\u062f\u0646: sudo netfilter-persistent save\"<\/textarea><\/pre><span class=\"cbp-btn-text\">Copy<\/span><\/span><pre class=\"shiki dracula-soft\" style=\"background-color: #282A36\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #7B7F8B\">#!\/bin\/bash<\/span><\/span>\n<span class=\"line\"><span style=\"color: #7B7F8B\"># WebDade Advanced Firewall Script 2025<\/span><\/span>\n<span class=\"line\"><span style=\"color: #7B7F8B\"># ======================================<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #7B7F8B\"># 1. \u067e\u0627\u06a9\u0633\u0627\u0632\u06cc \u06a9\u0627\u0645\u0644 \u0642\u0648\u0627\u0646\u06cc\u0646 \u0642\u0628\u0644\u06cc<\/span><\/span>\n<span class=\"line\"><span style=\"color: #62E884\">iptables<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-F<\/span><\/span>\n<span class=\"line\"><span style=\"color: #62E884\">iptables<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-F<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-t<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">nat<\/span><\/span>\n<span class=\"line\"><span style=\"color: #62E884\">iptables<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-F<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-t<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">mangle<\/span><\/span>\n<span class=\"line\"><span style=\"color: #62E884\">iptables<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-X<\/span><\/span>\n<span class=\"line\"><span style=\"color: #62E884\">iptables<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-Z<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #7B7F8B\"># 2. \u0627\u062c\u0627\u0632\u0647 \u0628\u0647 \u062a\u0631\u0627\u0641\u06cc\u06a9 Loopback<\/span><\/span>\n<span class=\"line\"><span style=\"color: #62E884\">iptables<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-A<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">INPUT<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-i<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">lo<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-j<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">ACCEPT<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #7B7F8B\"># 3. \u0641\u0627\u06cc\u0631\u0648\u0627\u0644 \u0647\u0648\u0634\u0645\u0646\u062f (Stateful) - \u0628\u0627\u06cc\u062f \u0642\u0628\u0644 \u0627\u0632 \u0647\u0645\u0647 \u0628\u0627\u0634\u062f<\/span><\/span>\n<span class=\"line\"><span style=\"color: #62E884\">iptables<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-A<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">INPUT<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-m<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">conntrack<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">--ctstate<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">ESTABLISHED,RELATED<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-j<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">ACCEPT<\/span><\/span>\n<span class=\"line\"><span style=\"color: #62E884\">iptables<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-A<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">INPUT<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-m<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">conntrack<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">--ctstate<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">INVALID<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-j<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">DROP<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #7B7F8B\"># 4. \u0645\u062d\u0627\u0641\u0638\u062a \u062f\u0631 \u0628\u0631\u0627\u0628\u0631 \u0627\u0633\u06a9\u0646 \u067e\u0648\u0631\u062a (\u0628\u0633\u062a\u0647\u200c\u0647\u0627\u06cc \u063a\u06cc\u0631\u0639\u0627\u062f\u06cc TCP)<\/span><\/span>\n<span class=\"line\"><span style=\"color: #62E884\">iptables<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-A<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">INPUT<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-p<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">tcp<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">--tcp-flags<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">ALL<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">NONE<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-j<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">DROP<\/span><\/span>\n<span class=\"line\"><span style=\"color: #62E884\">iptables<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-A<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">INPUT<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-p<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">tcp<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">--tcp-flags<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">ALL<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">FIN,PSH,URG<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-j<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">DROP<\/span><\/span>\n<span class=\"line\"><span style=\"color: #62E884\">iptables<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-A<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">INPUT<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-p<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">tcp<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">--tcp-flags<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">SYN,FIN<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">SYN,FIN<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-j<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">DROP<\/span><\/span>\n<span class=\"line\"><span style=\"color: #62E884\">iptables<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-A<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">INPUT<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-p<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">tcp<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">--tcp-flags<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">SYN,RST<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">SYN,RST<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-j<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">DROP<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #7B7F8B\"># 5. \u0645\u062d\u062f\u0648\u062f \u06a9\u0631\u062f\u0646 SYN Flood (Rate Limiting)<\/span><\/span>\n<span class=\"line\"><span style=\"color: #62E884\">iptables<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-A<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">INPUT<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-p<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">tcp<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">--syn<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-m<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">limit<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">--limit<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">10<\/span><span style=\"color: #E7EE98\">\/s<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">--limit-burst<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">20<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-j<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">ACCEPT<\/span><\/span>\n<span class=\"line\"><span style=\"color: #62E884\">iptables<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-A<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">INPUT<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-p<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">tcp<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">--syn<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-j<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">DROP<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #7B7F8B\"># 6. \u0645\u062d\u062f\u0648\u062f \u06a9\u0631\u062f\u0646 ICMP (Ping Flood)<\/span><\/span>\n<span class=\"line\"><span style=\"color: #62E884\">iptables<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-A<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">INPUT<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-p<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">icmp<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">--icmp-type<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">echo-request<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-m<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">limit<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">--limit<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">1<\/span><span style=\"color: #E7EE98\">\/s<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">--limit-burst<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">5<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-j<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">ACCEPT<\/span><\/span>\n<span class=\"line\"><span style=\"color: #62E884\">iptables<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-A<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">INPUT<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-p<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">icmp<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">--icmp-type<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">echo-request<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-j<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">DROP<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #7B7F8B\"># 7. \u0645\u062d\u062f\u0648\u062f \u06a9\u0631\u062f\u0646 \u06a9\u0627\u0646\u06a9\u0634\u0646 \u0647\u0645\u0632\u0645\u0627\u0646 \u0631\u0648\u06cc \u067e\u0648\u0631\u062a\u200c\u0647\u0627\u06cc \u0648\u0628<\/span><\/span>\n<span class=\"line\"><span style=\"color: #62E884\">iptables<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-A<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">INPUT<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-p<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">tcp<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">--syn<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">--dport<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">80<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-m<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">connlimit<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">--connlimit-above<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">20<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-j<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">DROP<\/span><\/span>\n<span class=\"line\"><span style=\"color: #62E884\">iptables<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-A<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">INPUT<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-p<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">tcp<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">--syn<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">--dport<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">443<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-m<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">connlimit<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">--connlimit-above<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">20<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-j<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">DROP<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #7B7F8B\"># 8. \u0628\u0627\u0632 \u06a9\u0631\u062f\u0646 \u067e\u0648\u0631\u062a\u200c\u0647\u0627\u06cc \u0636\u0631\u0648\u0631\u06cc<\/span><\/span>\n<span class=\"line\"><span style=\"color: #62E884\">iptables<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-A<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">INPUT<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-p<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">tcp<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">--dport<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">22<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-j<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">ACCEPT<\/span><span style=\"color: #F6F6F4\">   <\/span><span style=\"color: #7B7F8B\"># SSH<\/span><\/span>\n<span class=\"line\"><span style=\"color: #62E884\">iptables<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-A<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">INPUT<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-p<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">tcp<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">--dport<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">80<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-j<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">ACCEPT<\/span><span style=\"color: #F6F6F4\">   <\/span><span style=\"color: #7B7F8B\"># HTTP<\/span><\/span>\n<span class=\"line\"><span style=\"color: #62E884\">iptables<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-A<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">INPUT<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-p<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">tcp<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">--dport<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">443<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-j<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">ACCEPT<\/span><span style=\"color: #F6F6F4\">  <\/span><span style=\"color: #7B7F8B\"># HTTPS<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #7B7F8B\"># 9. \u0628\u0633\u062a\u0646 \u0628\u0642\u06cc\u0647 \u062a\u0631\u0627\u0641\u06cc\u06a9 (Default Policy)<\/span><\/span>\n<span class=\"line\"><span style=\"color: #62E884\">iptables<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-P<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">INPUT<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">DROP<\/span><\/span>\n<span class=\"line\"><span style=\"color: #62E884\">iptables<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-P<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">FORWARD<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">DROP<\/span><\/span>\n<span class=\"line\"><span style=\"color: #62E884\">iptables<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #BF9EEE\">-P<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">OUTPUT<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #E7EE98\">ACCEPT<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #97E1F1\">echo<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #DEE492\">&quot;<\/span><span style=\"color: #E7EE98\">\u2705 Security applied successfully! - WebDade.com<\/span><span style=\"color: #DEE492\">&quot;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #97E1F1\">echo<\/span><span style=\"color: #F6F6F4\"> <\/span><span style=\"color: #DEE492\">&quot;<\/span><span style=\"color: #E7EE98\">\ud83d\udccc \u0628\u0631\u0627\u06cc \u062f\u0627\u0626\u0645\u06cc \u06a9\u0631\u062f\u0646: sudo netfilter-persistent save<\/span><span style=\"color: #DEE492\">&quot;<\/span><\/span><\/code><\/pre><span style=\"display:flex;align-items:flex-end;padding:10px;width:100%;justify-content:flex-start;background-color:#282A36;color:#ebebe6;font-size:12px;line-height:1;position:relative\"> <\/span><\/div>\n\n\n\n<p id=\"gspb_text-id-gsbp-ca51e0f\" class=\"gspb_text gspb_text-id-gsbp-ca51e0f \">\ud83d\udccc <strong>\u0646\u06a9\u0627\u062a \u0645\u0647\u0645 \u062f\u0631\u0628\u0627\u0631\u0647 \u062a\u0631\u062a\u06cc\u0628 \u0642\u0648\u0627\u0646\u06cc\u0646 \u062f\u0631 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0628\u0627\u0644\u0627:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u0642\u0627\u0646\u0648\u0646 Conntrack (\u0645\u0631\u062d\u0644\u0647 3)<\/strong> \u0627\u0648\u0644 \u0627\u0632 \u0647\u0645\u0647 \u0622\u0645\u062f\u0647 \u062a\u0627 \u0627\u062a\u0635\u0627\u0644\u0627\u062a \u0641\u0639\u0644\u06cc (\u0645\u062b\u0644 SSH \u0634\u0645\u0627) \u0642\u0637\u0639 \u0646\u0634\u0648\u062f.<\/li>\n\n\n\n<li><strong>\u0642\u0648\u0627\u0646\u06cc\u0646 \u0636\u062f \u0627\u0633\u06a9\u0646 (\u0645\u0631\u062d\u0644\u0647 4)<\/strong> \u0642\u0628\u0644 \u0627\u0632 Rate Limiting \u0622\u0645\u062f\u0647\u200c\u0627\u0646\u062f \u062a\u0627 \u0628\u0633\u062a\u0647\u200c\u0647\u0627\u06cc \u0645\u062e\u0631\u0628 \u0632\u0648\u062f\u062a\u0631 \u062d\u0630\u0641 \u0634\u0648\u0646\u062f.<\/li>\n\n\n\n<li><strong>Rate Limiting (\u0645\u0631\u062d\u0644\u0647 5)<\/strong> \u0642\u0628\u0644 \u0627\u0632 ACCEPT \u067e\u0648\u0631\u062a\u200c\u0647\u0627 \u0642\u0631\u0627\u0631 \u06af\u0631\u0641\u062a\u0647 \u062a\u0627 \u0648\u0627\u0642\u0639\u0627\u064b \u0645\u0624\u062b\u0631 \u0628\u0627\u0634\u062f.<\/li>\n\n\n\n<li><strong>ACCEPT \u067e\u0648\u0631\u062a\u200c\u0647\u0627 (\u0645\u0631\u062d\u0644\u0647 8)<\/strong> \u062f\u0631 \u0622\u062e\u0631 \u0622\u0645\u062f\u0647\u060c \u06cc\u0639\u0646\u06cc \u0641\u0642\u0637 \u062a\u0631\u0627\u0641\u06cc\u06a9\u06cc \u06a9\u0647 \u0627\u0632 \u0641\u06cc\u0644\u062a\u0631\u0647\u0627\u06cc \u0642\u0628\u0644\u06cc \u0631\u062f \u0634\u062f\u0647 \u0628\u0647 \u067e\u0648\u0631\u062a\u200c\u0647\u0627 \u062f\u0633\u062a\u0631\u0633\u06cc \u067e\u06cc\u062f\u0627 \u0645\u06cc\u200c\u06a9\u0646\u062f.<\/li>\n<\/ul>\n\n\n\n<div id=\"webdade-services\"><\/div><h3 id=\"gspb_heading-id-gsbp-3b6ce78\" class=\"gspb_heading gspb_heading-id-gsbp-3b6ce78 \">\u062e\u062f\u0645\u0627\u062a \u0648\u0628\u200c\u062f\u0627\u062f\u0647\u061b \u0627\u0645\u0646\u06cc\u062a \u062a\u0636\u0645\u06cc\u0646 \u0634\u062f\u0647 \u062f\u0631 \u0633\u0631\u0648\u0631 \u0645\u062c\u0627\u0632\u06cc<\/h3>\n\n\n\n<p id=\"gspb_text-id-gsbp-2dafdce\" class=\"gspb_text gspb_text-id-gsbp-2dafdce \">\u0627\u06af\u0631 \u0628\u0647 \u062f\u0646\u0628\u0627\u0644 \u0628\u0647\u062a\u0631\u06cc\u0646 \u06a9\u0627\u0646\u0641\u06cc\u06af \u0641\u0627\u06cc\u0631\u0648\u0627\u0644 \u0628\u0631\u0627\u06cc \u0633\u0631\u0648\u0631 \u0645\u062c\u0627\u0632\u06cc (VPS) \u0647\u0633\u062a\u06cc\u062f \u0627\u0645\u0627 \u0641\u0631\u0635\u062a \u06cc\u0627 \u062f\u0627\u0646\u0634 \u06a9\u0627\u0641\u06cc \u0628\u0631\u0627\u06cc \u062f\u0631\u06af\u06cc\u0631\u06cc \u0628\u0627 \u06a9\u062f\u0647\u0627\u06cc \u067e\u06cc\u0686\u06cc\u062f\u0647 \u0631\u0627 \u0646\u062f\u0627\u0631\u06cc\u062f\u060c \u062a\u06cc\u0645 \u0641\u0646\u06cc \u0648\u0628\u200c\u062f\u0627\u062f\u0647 \u062f\u0631 \u06a9\u0646\u0627\u0631 \u0634\u0645\u0627\u0633\u062a.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u2705 \u0627\u0631\u0627\u0626\u0647 \u0633\u0631\u0648\u0631\u0647\u0627\u06cc \u0645\u062c\u0627\u0632\u06cc \u0628\u0627 \u0627\u0645\u0646\u06cc\u062a \u0633\u062e\u062a\u200c\u0627\u0641\u0632\u0627\u0631\u06cc \u0628\u0627\u0644\u0627<\/li>\n\n\n\n<li>\u2705 \u067e\u0634\u062a\u06cc\u0628\u0627\u0646\u06cc 24 \u0633\u0627\u0639\u062a\u0647 \u0628\u0631\u0627\u06cc \u0631\u0641\u0639 \u0645\u0634\u06a9\u0644\u0627\u062a \u0634\u0628\u06a9\u0647<\/li>\n\n\n\n<li>\u2705 \u0627\u0645\u06a9\u0627\u0646 \u0646\u0635\u0628 \u062e\u0648\u062f\u06a9\u0627\u0631 \u0633\u06cc\u0633\u062a\u0645\u200c\u0639\u0627\u0645\u0644\u200c\u0647\u0627\u06cc \u0628\u0647\u06cc\u0646\u0647 \u0634\u062f\u0647<\/li>\n<\/ul>\n\n\n\n<div class=\"wp-block-greenshift-blocks-container gspb_container gspb_container-gsbp-64dd729\" id=\"gspb_container-id-gsbp-64dd729\"><div class=\"gspb_backgroundOverlay\"><\/div>\n<div class=\"wp-block-greenshift-blocks-container gspb_container gspb_container-gsbp-548f299\" id=\"gspb_container-id-gsbp-548f299\">\n<div class=\"wp-block-greenshift-blocks-iconlist gspb_iconsList gspb_iconsList-id-gsbp-d9ac3a3\" id=\"gspb_iconsList-id-gsbp-d9ac3a3\"><div class=\"gspb_iconsList__item\" data-id=\"0\"><img decoding=\"async\" src=\"https:\/\/webdade.com\/blog\/wp-content\/uploads\/2025\/07\/svgexport-58.webp\" alt=\"\"><span class=\"gspb_iconsList__item__text\">\u0633\u0631\u0648\u0631 \u0645\u062c\u0627\u0632\u06cc \u0648\u0628 \u062f\u0627\u062f\u0647<\/span><\/div><\/div>\n\n\n\n<div id=\"gspb_text-id-gsbp-b71d961\" class=\"gspb_text gspb_text-id-gsbp-b71d961 \">VPS \u0648\u0628 \u062f\u0627\u062f\u0647 \u0628\u0627 \u062d\u0636\u0648\u0631 \u0642\u062f\u0631\u062a\u0645\u0646\u062f \u062f\u0631 \u0628\u06cc\u0634 \u0627\u0632 9 \u0644\u0648\u06a9\u06cc\u0634\u0646 \u0627\u0633\u062a\u0631\u0627\u062a\u0698\u06cc\u06a9 \u062f\u0631 \u0633\u0631\u0627\u0633\u0631 \u062c\u0647\u0627\u0646\u2026<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-greenshift-blocks-container gspb_container gspb_container-gsbp-5f7449a\" id=\"gspb_container-id-gsbp-5f7449a\">\n<div id=\"gspb_text-id-gsbp-04124d6\" class=\"gspb_text gspb_text-id-gsbp-04124d6 \">\u0628\u0631\u0627\u06cc \u0645\u0634\u0627\u0647\u062f\u0647 \u0645\u0648\u0642\u0639\u06cc\u062a\u200c\u0647\u0627\u06cc <br><strong>\u0633\u0631\u0648\u0631 \u0647\u0627\u06cc \u0645\u062c\u0627\u0632\u06cc \u0648\u0628\u200c\u062f\u0627\u062f\u0647<br><\/strong> \u0631\u0648\u06cc \u062f\u06a9\u0645\u0647 \u0632\u06cc\u0631 \u06a9\u0644\u06cc\u06a9 \u06a9\u0646\u06cc\u062f<\/div>\n\n\n\n<div class=\"gspb_button_wrapper gspb_button-id-gsbp-5711edc\" id=\"gspb_button-id-gsbp-5711edc\"><a class=\"wp-block-greenshift-blocks-buttonbox gspb-buttonbox wp-element-button\" href=\"https:\/\/webdade.com\/vps\" id=\"https:\/\/webdade.com\/vps\" title=\"\u062e\u0631\u06cc\u062f \u0633\u0631\u0648\u0631 \u0645\u062c\u0627\u0632\u06cc\" target=\"_blank\" rel=\"noopener\"><span class=\"gspb-buttonbox-textwrap\"><span class=\"gspb-buttonbox-text\"><span class=\"gspb-buttonbox-title\">\u062e\u0631\u06cc\u062f \u0633\u0631\u0648\u0631 \u0645\u062c\u0627\u0632\u06cc<\/span><\/span><\/span><\/a><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-greenshift-blocks-container gspb_container gspb_container-gsbp-e6cd40a\" id=\"gspb_container-id-gsbp-e6cd40a\">\n<div style=\"height:100%\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<\/div>\n<\/div>\n\n\n\n<div id=\"conclusion\"><\/div><h3 id=\"gspb_heading-id-gsbp-d16408c\" class=\"gspb_heading gspb_heading-id-gsbp-d16408c \">\u0646\u062a\u06cc\u062c\u0647\u200c\u06af\u06cc\u0631\u06cc:  \u067e\u06cc\u06a9\u0631\u0628\u0646\u062f\u06cc \u067e\u06cc\u0634\u0631\u0641\u062a\u0647 iptables\u061b \u0627\u0632 \u0627\u0645\u0646\u06cc\u062a \u067e\u0627\u06cc\u0647 \u062a\u0627 \u0645\u0642\u0627\u0628\u0644\u0647 \u0628\u0627 DDoS<\/h3>\n\n\n\n<p id=\"gspb_text-id-gsbp-ad44c34\" class=\"gspb_text gspb_text-id-gsbp-ad44c34 \">\u062f\u0631 \u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647 \u0622\u0645\u0648\u062e\u062a\u06cc\u0645 \u06a9\u0647 \u067e\u06cc\u06a9\u0631\u0628\u0646\u062f\u06cc \u0641\u0627\u06cc\u0631\u0648\u0627\u0644 \u0644\u06cc\u0646\u0648\u06a9\u0633 \u06cc\u06a9 \u0641\u0631\u0622\u06cc\u0646\u062f \u0627\u06cc\u0633\u062a\u0627 \u0646\u06cc\u0633\u062a. \u0634\u0645\u0627 \u0628\u0627\u06cc\u062f \u0645\u062f\u0627\u0645 \u0644\u0627\u06af\u200c\u0647\u0627\u06cc \u0633\u0631\u0648\u0631 \u0631\u0627 \u062f\u0631 \u0645\u0633\u06cc\u0631 \/var\/log\/syslog \u0686\u06a9 \u06a9\u0646\u06cc\u062f \u062a\u0627 \u0645\u062a\u0648\u062c\u0647 \u0641\u0639\u0627\u0644\u06cc\u062a\u200c\u0647\u0627\u06cc \u0645\u0634\u06a9\u0648\u06a9 \u0634\u0648\u06cc\u062f. \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0622\u0645\u0648\u0632\u0634 iptables \u067e\u06cc\u0634\u0631\u0641\u062a\u0647 \u0628\u0647 \u0634\u0645\u0627 \u0627\u062c\u0627\u0632\u0647 \u062f\u0627\u062f \u062a\u0627 \u0627\u0632 \u06cc\u06a9 \u06a9\u0627\u0631\u0628\u0631 \u0639\u0627\u062f\u06cc \u0628\u0647 \u06cc\u06a9 \u0645\u062f\u06cc\u0631 \u0633\u0631\u0648\u0631 \u062d\u0631\u0641\u0647\u200c\u0627\u06cc \u062a\u0628\u062f\u06cc\u0644 \u0634\u0648\u06cc\u062f \u06a9\u0647 \u0645\u06cc\u200c\u062f\u0627\u0646\u062f \u0686\u0637\u0648\u0631 \u0628\u0627 \u062d\u0645\u0644\u0627\u062a DDoS \u0645\u0642\u0627\u0628\u0644\u0647 \u06a9\u0646\u062f \u0648 \u067e\u0648\u0631\u062a\u200c\u0647\u0627\u06cc \u0627\u0636\u0627\u0641\u06cc \u0631\u0627 \u0628\u0628\u0646\u062f\u062f.<\/p>\n\n\n\n<p id=\"gspb_text-id-gsbp-7174d01\" class=\"gspb_text gspb_text-id-gsbp-7174d01 \">\u0627\u0645\u06cc\u062f\u0648\u0627\u0631\u0645 \u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647 \u0627\u0632 \u0628\u0644\u0627\u06af \u0648\u0628\u200c\u062f\u0627\u062f\u0647 \u0628\u0631\u0627\u06cc \u0634\u0645\u0627 \u0645\u0641\u06cc\u062f \u0628\u0648\u062f\u0647 \u0628\u0627\u0634\u062f. \u0627\u06af\u0631 \u062f\u0631 \u0647\u0631 \u0645\u0631\u062d\u0644\u0647 \u0627\u0632 \u062a\u0646\u0638\u06cc\u0645\u0627\u062a \u062f\u0686\u0627\u0631 \u0645\u0634\u06a9\u0644 \u0634\u062f\u06cc\u062f \u06cc\u0627 \u0633\u0648\u0627\u0644\u06cc \u062f\u0631\u0628\u0627\u0631\u0647 \u0646\u0635\u0628 iptables-persistent \u062f\u0627\u0634\u062a\u06cc\u062f\u060c \u062d\u062a\u0645\u0627\u064b \u062f\u0631 \u0628\u062e\u0634 \u0646\u0638\u0631\u0627\u062a \u0628\u0627 \u0645\u0627 \u062f\u0631 \u0627\u0631\u062a\u0628\u0627\u0637 \u0628\u0627\u0634\u06cc\u062f. \u0645\u0627 \u062e\u0648\u0634\u062d\u0627\u0644 \u0645\u06cc\u200c\u0634\u0648\u06cc\u0645 \u0628\u0647 \u0634\u0645\u0627 \u06a9\u0645\u06a9 \u06a9\u0646\u06cc\u0645! \ud83d\ude80<\/p>\n\n\n\n<div id=\"faq\"><\/div><h3 id=\"gspb_heading-id-gsbp-7caf5a6\" class=\"gspb_heading gspb_heading-id-gsbp-7caf5a6 \">\u0633\u0648\u0627\u0644\u0627\u062a \u0645\u062a\u062f\u0627\u0648\u0644 \u0627\u0632 \u0622\u0645\u0648\u0632\u0634 iptables<\/h3>\n\n\n\n<div class=\"wp-block-greenshift-blocks-accordion gs-accordion gspb_accordion-id-gsbp-1c83e2f togglelogic\" id=\"gspb_accordion-id-gsbp-1c83e2f\" itemscope itemtype=\"https:\/\/schema.org\/FAQPage\">\n<div class=\"wp-block-greenshift-blocks-accordionitem gs-accordion-item gspb_accordionitem-gsbp-38d760d gsopen\" id=\"gspb_accordionitem-gsbp-38d760d\" itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"><div id=\"gs-trigger-gsbp-1c83e2f-0\" class=\"gs-accordion-item__title\" aria-expanded=\"true\" role=\"button\" tabindex=\"0\" aria-controls=\"gspb-accordion-item-content-gsbp-38d760d\"><h4 class=\"gs-accordion-item__heading\">1- \u0622\u06cc\u0627 iptables \u0628\u0631\u0627\u06cc \u0627\u0648\u0628\u0648\u0646\u062a\u0648 20.04 \u0648 22.04 \u0647\u0645 \u0645\u0646\u0627\u0633\u0628 \u0627\u0633\u062a\u061f<\/h4><meta itemprop=\"name\" content=\"1- \u0622\u06cc\u0627 iptables \u0628\u0631\u0627\u06cc \u0627\u0648\u0628\u0648\u0646\u062a\u0648 20.04 \u0648 22.04 \u0647\u0645 \u0645\u0646\u0627\u0633\u0628 \u0627\u0633\u062a\u061f\"\/><span class=\"iconfortoggle\"><span class=\"gs-iconbefore\"><\/span><span class=\"gs-iconafter\"><\/span><\/span><\/div><div aria-labelledby=\"gs-trigger-gsbp-1c83e2f-0\" class=\"gs-accordion-item__content\" itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" id=\"gspb-accordion-item-content-gsbp-38d760d\" aria-hidden=\"false\"><div class=\"gs-accordion-item__text\" itemprop=\"text\">\n<p>\u0628\u0644\u0647\u060c iptables \u0647\u0645\u0686\u0646\u0627\u0646 \u06a9\u0627\u0631 \u0645\u06cc\u200c\u06a9\u0646\u062f. \u0627\u0644\u0628\u062a\u0647 \u062f\u0631 \u0627\u0648\u0628\u0648\u0646\u062a\u0648 22.04 \u0648 24.04\u060c \u062f\u0633\u062a\u0648\u0631 <code>iptables<\/code> \u0628\u0647 \u0635\u0648\u0631\u062a \u067e\u06cc\u0634\u200c\u0641\u0631\u0636 \u0627\u0632 <code>iptables-nft<\/code> (\u0646\u0633\u062e\u0647\u200c\u0627\u06cc \u06a9\u0647 backend \u0622\u0646 nftables \u0627\u0633\u062a) \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u06a9\u0646\u062f. \u0633\u06cc\u0646\u062a\u06a9\u0633 \u062f\u0633\u062a\u0648\u0631\u0627\u062a \u06cc\u06a9\u0633\u0627\u0646 \u0627\u0633\u062a \u0648\u0644\u06cc \u0645\u0648\u062a\u0648\u0631 \u0632\u06cc\u0631\u06cc\u0646 \u0645\u062a\u0641\u0627\u0648\u062a \u0627\u0633\u062a. \u0628\u0631\u0627\u06cc \u0628\u0631\u0631\u0633\u06cc \u0646\u0633\u062e\u0647 \u062e\u0648\u062f \u0627\u0632 \u062f\u0633\u062a\u0648\u0631 <code>iptables --version<\/code> \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f.<\/p>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-greenshift-blocks-accordionitem gs-accordion-item gspb_accordionitem-gsbp-7ff5ada gsclose\" id=\"gspb_accordionitem-gsbp-7ff5ada\" itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"><div id=\"gs-trigger-gsbp-1c83e2f-1\" class=\"gs-accordion-item__title\" aria-expanded=\"false\" role=\"button\" tabindex=\"0\" aria-controls=\"gspb-accordion-item-content-gsbp-7ff5ada\"><h4 class=\"gs-accordion-item__heading\">2- \u0627\u06af\u0631 \u067e\u0648\u0631\u062a SSH \u0631\u0627 \u0627\u0634\u062a\u0628\u0627\u0647\u06cc \u0628\u0628\u0646\u062f\u0645 \u0686\u0647 \u06a9\u0627\u0631 \u06a9\u0646\u0645\u061f<\/h4><meta itemprop=\"name\" content=\"2- \u0627\u06af\u0631 \u067e\u0648\u0631\u062a SSH \u0631\u0627 \u0627\u0634\u062a\u0628\u0627\u0647\u06cc \u0628\u0628\u0646\u062f\u0645 \u0686\u0647 \u06a9\u0627\u0631 \u06a9\u0646\u0645\u061f\"\/><span class=\"iconfortoggle\"><span class=\"gs-iconbefore\"><\/span><span class=\"gs-iconafter\"><\/span><\/span><\/div><div aria-labelledby=\"gs-trigger-gsbp-1c83e2f-1\" class=\"gs-accordion-item__content\" itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" id=\"gspb-accordion-item-content-gsbp-7ff5ada\" aria-hidden=\"true\"><div class=\"gs-accordion-item__text\" itemprop=\"text\">\n<p>\u062f\u0631 \u0627\u06cc\u0646 \u0635\u0648\u0631\u062a \u062f\u0633\u062a\u0631\u0633\u06cc \u0634\u0645\u0627 \u0642\u0637\u0639 \u0645\u06cc\u200c\u0634\u0648\u062f. \u0628\u0627\u06cc\u062f \u0627\u0632 \u0637\u0631\u06cc\u0642 \u06a9\u0646\u0633\u0648\u0644 (VNC) \u062f\u0631 \u067e\u0646\u0644 \u0648\u0628\u200c\u062f\u0627\u062f\u0647 \u0648\u0627\u0631\u062f \u0633\u0631\u0648\u0631 \u0634\u0648\u06cc\u062f \u0648 \u0628\u0627 \u062f\u0633\u062a\u0648\u0631 <code>iptables -F<\/code> \u0642\u0648\u0627\u0646\u06cc\u0646 \u0631\u0627 \u067e\u0627\u06a9 \u06a9\u0646\u06cc\u062f.<\/p>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-greenshift-blocks-accordionitem gs-accordion-item gspb_accordionitem-gsbp-ae64f67 gsclose\" id=\"gspb_accordionitem-gsbp-ae64f67\" itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"><div id=\"gs-trigger-gsbp-1c83e2f-2\" class=\"gs-accordion-item__title\" aria-expanded=\"false\" role=\"button\" tabindex=\"0\" aria-controls=\"gspb-accordion-item-content-gsbp-ae64f67\"><h4 class=\"gs-accordion-item__heading\">3- \u062a\u0641\u0627\u0648\u062a iptables \u0648 nftables \u062f\u0631 \u0686\u06cc\u0633\u062a\u061f<\/h4><meta itemprop=\"name\" content=\"3- \u062a\u0641\u0627\u0648\u062a iptables \u0648 nftables \u062f\u0631 \u0686\u06cc\u0633\u062a\u061f\"\/><span class=\"iconfortoggle\"><span class=\"gs-iconbefore\"><\/span><span class=\"gs-iconafter\"><\/span><\/span><\/div><div aria-labelledby=\"gs-trigger-gsbp-1c83e2f-2\" class=\"gs-accordion-item__content\" itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" id=\"gspb-accordion-item-content-gsbp-ae64f67\" aria-hidden=\"true\"><div class=\"gs-accordion-item__text\" itemprop=\"text\">\n<p>nftables \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646 \u0645\u062f\u0631\u0646\u200c\u062a\u0631\u06cc \u0627\u0633\u062a \u06a9\u0647 \u0633\u0627\u062e\u062a\u0627\u0631 \u062a\u0645\u06cc\u0632\u062a\u0631\u06cc \u062f\u0627\u0631\u062f \u0648 \u062f\u0631 \u062a\u0631\u0627\u0641\u06cc\u06a9\u200c\u0647\u0627\u06cc \u0628\u0633\u06cc\u0627\u0631 \u0633\u0646\u06af\u06cc\u0646 \u0639\u0645\u0644\u06a9\u0631\u062f \u0628\u0647\u062a\u0631\u06cc \u0627\u0632 \u062e\u0648\u062f \u0646\u0634\u0627\u0646 \u0645\u06cc\u200c\u062f\u0647\u062f\u060c \u0627\u0645\u0627 \u06cc\u0627\u062f\u06af\u06cc\u0631\u06cc iptables \u0628\u0647 \u062f\u0644\u06cc\u0644 \u0645\u0646\u0627\u0628\u0639 \u0622\u0645\u0648\u0632\u0634\u06cc \u0628\u06cc\u0634\u062a\u0631\u060c \u0628\u0631\u0627\u06cc \u0634\u0631\u0648\u0639 \u0628\u0647\u062a\u0631 \u0627\u0633\u062a.<\/p>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-greenshift-blocks-accordionitem gs-accordion-item gspb_accordionitem-gsbp-d9eecfa gsclose\" id=\"gspb_accordionitem-gsbp-d9eecfa\" itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"><div id=\"gs-trigger-gsbp-1c83e2f-3\" class=\"gs-accordion-item__title\" aria-expanded=\"false\" role=\"button\" tabindex=\"0\" aria-controls=\"gspb-accordion-item-content-gsbp-d9eecfa\"><h4 class=\"gs-accordion-item__heading\">4- \u0686\u0637\u0648\u0631 \u0628\u0641\u0647\u0645\u0645 \u0686\u0647 \u0642\u0648\u0627\u0646\u06cc\u0646\u06cc \u0627\u0644\u0627\u0646 \u0641\u0639\u0627\u0644 \u0647\u0633\u062a\u0646\u062f\u061f<\/h4><meta itemprop=\"name\" content=\"4- \u0686\u0637\u0648\u0631 \u0628\u0641\u0647\u0645\u0645 \u0686\u0647 \u0642\u0648\u0627\u0646\u06cc\u0646\u06cc \u0627\u0644\u0627\u0646 \u0641\u0639\u0627\u0644 \u0647\u0633\u062a\u0646\u062f\u061f\"\/><span class=\"iconfortoggle\"><span class=\"gs-iconbefore\"><\/span><span class=\"gs-iconafter\"><\/span><\/span><\/div><div aria-labelledby=\"gs-trigger-gsbp-1c83e2f-3\" class=\"gs-accordion-item__content\" itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" id=\"gspb-accordion-item-content-gsbp-d9eecfa\" aria-hidden=\"true\"><div class=\"gs-accordion-item__text\" itemprop=\"text\">\n<p>\u06a9\u0627\u0641\u06cc\u0633\u062a \u0627\u0632 \u062f\u0633\u062a\u0648\u0631 <code>iptables -L -n -v<\/code> \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f \u062a\u0627 \u0644\u06cc\u0633\u062a \u062a\u0645\u0627\u0645 \u0642\u0648\u0627\u0646\u06cc\u0646 \u0641\u0639\u0627\u0644 \u0631\u0627 \u0628\u0627 \u062c\u0632\u0626\u06cc\u0627\u062a \u0645\u0634\u0627\u0647\u062f\u0647 \u06a9\u0646\u06cc\u062f.<\/p>\n<\/div><\/div><\/div>\n<\/div>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647 \u06cc\u06a9 \u0631\u0627\u0647\u0646\u0645\u0627\u06cc \u062a\u062e\u0635\u0635\u06cc \u0628\u0631\u0627\u06cc \u062a\u0628\u062f\u06cc\u0644 iptables \u0628\u0647 \u06cc\u06a9 \u0633\u06cc\u0633\u062a\u0645 \u062f\u0641\u0627\u0639\u06cc \u0644\u0627\u06cc\u0647\u200c\u0627\u06cc \u0627\u0633\u062a \u06a9\u0647 \u0627\u0632 \u0645\u0641\u0627\u0647\u06cc\u0645 \u067e\u0627\u06cc\u0647 \u062c\u062f\u0627\u0648\u0644 \u0648 \u0632\u0646\u062c\u06cc\u0631\u0647\u200c\u0647\u0627 \u062a\u0627 \u062a\u06a9\u0646\u06cc\u06a9\u200c\u0647\u0627\u06cc \u067e\u06cc\u0634\u0631\u0641\u062a\u0647\u200c\u0627\u06cc \u0645\u062b\u0644 Stateful Inspection \u0648 Rate Limiting \u0631\u0627 \u0622\u0645\u0648\u0632\u0634 \u0645\u06cc\u200c\u062f\u0647\u062f. \u062f\u0631 \u0627\u06cc\u0646 \u0645\u0637\u0644\u0628 \u06cc\u0627\u062f \u0645\u06cc\u200c\u06af\u06cc\u0631\u06cc\u062f \u0686\u06af\u0648\u0646\u0647 \u0628\u0627 \u0628\u0633\u062a\u0646 \u067e\u0648\u0631\u062a\u200c\u0647\u0627\u06cc \u0627\u0636\u0627\u0641\u06cc \u0648 \u0645\u062f\u06cc\u0631\u06cc\u062a \u0647\u0648\u0634\u0645\u0646\u062f \u062a\u0631\u0627\u0641\u06cc\u06a9\u060c \u0633\u0631\u0648\u0631 \u062e\u0648\u062f \u0631\u0627 \u062f\u0631 \u0628\u0631\u0627\u0628\u0631 \u062d\u0645\u0644\u0627\u062a DDoS \u0648 \u0627\u0633\u06a9\u0646 \u067e\u0648\u0631\u062a\u200c\u0647\u0627 \u0645\u0642\u0627\u0648\u0645 \u06a9\u0631\u062f\u0647 \u0648 \u0642\u0648\u0627\u0646\u06cc\u0646 \u0631\u0627 \u0628\u0647 \u0635\u0648\u0631\u062a \u062f\u0627\u0626\u0645\u06cc \u0630\u062e\u06cc\u0631\u0647 \u06a9\u0646\u06cc\u062f. \u062f\u0631 \u0646\u0647\u0627\u06cc\u062a\u060c \u0628\u0627 \u0627\u0631\u0627\u0626\u0647 \u06cc\u06a9 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0637\u0644\u0627\u06cc\u06cc\u060c \u067e\u06cc\u0627\u062f\u0647\u200c\u0633\u0627\u0632\u06cc \u062a\u0645\u0627\u0645 \u0627\u06cc\u0646 \u062a\u0646\u0638\u06cc\u0645\u0627\u062a \u0627\u0645\u0646\u06cc\u062a\u06cc \u0628\u0631 \u0631\u0648\u06cc \u0633\u0631\u0648\u0631\u0647\u0627\u06cc \u0645\u062c\u0627\u0632\u06cc \u0628\u0647 \u0633\u0627\u062f\u06af\u06cc \u0648 \u062f\u0631 \u0686\u0646\u062f \u062b\u0627\u0646\u06cc\u0647 \u0627\u0645\u06a9\u0627\u0646\u200c\u067e\u0630\u06cc\u0631 \u0634\u062f\u0647 \u0627\u0633\u062a.<\/p>\n","protected":false},"author":2,"featured_media":32839,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_gspb_post_css":".gspb_container-id-gsbp-fa03f97{flex-direction:column;box-sizing:border-box}#gspb_container-id-gsbp-2c94595.gspb_container>p:last-of-type,#gspb_container-id-gsbp-3090342.gspb_container>p:last-of-type,#gspb_container-id-gsbp-513ba00.gspb_container>p:last-of-type,#gspb_container-id-gsbp-548f299.gspb_container>p:last-of-type,#gspb_container-id-gsbp-5edec11.gspb_container>p:last-of-type,#gspb_container-id-gsbp-5f7449a.gspb_container>p:last-of-type,#gspb_container-id-gsbp-64dd729.gspb_container>p:last-of-type,#gspb_container-id-gsbp-73e4a3d.gspb_container>p:last-of-type,#gspb_container-id-gsbp-a54ae49.gspb_container>p:last-of-type,#gspb_container-id-gsbp-e6cd40a.gspb_container>p:last-of-type,#gspb_container-id-gsbp-f12e5b6.gspb_container>p:last-of-type,#gspb_container-id-gsbp-fa03f97.gspb_container>p:last-of-type{margin-bottom:0}#gspb_container-id-gsbp-fa03f97.gspb_container{position:relative;padding:25px}@media 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