{"id":35006,"date":"2026-07-13T15:48:51","date_gmt":"2026-07-13T12:18:51","guid":{"rendered":"https:\/\/www.itpiran.net\/blog\/"},"modified":"2026-07-13T15:48:51","modified_gmt":"2026-07-13T12:18:51","slug":"managing-firewall-nftables","status":"publish","type":"post","link":"https:\/\/www.itpiran.net\/blog\/de\/security\/managing-firewall-nftables\/","title":{"rendered":"Firewalls und Einstellungen mit nftables verwalten: Ein vollst\u00e4ndiger und praktischer Leitfaden"},"content":{"rendered":"<h2 class=\"wp-block-heading\" id=\"h-intro\"><span id=\"%da%86%d8%b7%d9%88%d8%b1-%d9%85%d8%af%db%8c%d8%b1%db%8c%d8%aa-%d9%81%d8%a7%db%8c%d8%b1%d9%88%d8%a7%d9%84-%d9%88-nftables-%d8%b1%d8%a7-%d8%a7%d8%b2-%d9%be%d8%a7%db%8c%d9%87-%d8%aa%d8%a7-%d9%be%db%8c\">\u0686\u0637\u0648\u0631 \u0645\u062f\u06cc\u0631\u06cc\u062a \u0641\u0627\u06cc\u0631\u0648\u0627\u0644 \u0648 nftables \u0631\u0627 \u0627\u0632 \u067e\u0627\u06cc\u0647 \u062a\u0627 \u067e\u06cc\u0634\u0631\u0641\u062a\u0647 \u0627\u0646\u062c\u0627\u0645 \u062f\u0647\u06cc\u0645\u061f<\/span><\/h2>\n<p class=\"wp-block-paragraph\">\u0645\u062f\u06cc\u0631\u06cc\u062a \u0641\u0627\u06cc\u0631\u0648\u0627\u0644 \u0648 \u062a\u0646\u0638\u06cc\u0645\u0627\u062a <em>nftables<\/em> \u0628\u0631\u0627\u06cc \u0647\u0631 \u0645\u062f\u06cc\u0631 \u0633\u06cc\u0633\u062a\u0645\u060c DevOps \u06cc\u0627 \u0635\u0627\u062d\u0628 \u0633\u0631\u0648\u0631 \u062d\u06cc\u0627\u062a\u06cc \u0627\u0633\u062a. \u062f\u0631 \u0627\u06cc\u0646 \u0631\u0627\u0647\u0646\u0645\u0627 \u0628\u0647 \u0632\u0628\u0627\u0646 \u0641\u0646\u06cc \u0648 \u0639\u0645\u0644\u06cc\u0627\u062a\u06cc \u0627\u0632 \u0645\u0628\u0627\u0646\u06cc \u062a\u0627 \u0633\u0646\u0627\u0631\u06cc\u0648\u0647\u0627\u06cc \u067e\u06cc\u0634\u0631\u0641\u062a\u0647 \u0647\u0645\u0631\u0627\u0647 \u0628\u0627 \u0645\u062b\u0627\u0644\u200c\u0647\u0627\u06cc \u0642\u0627\u0628\u0644 \u0627\u062c\u0631\u0627 \u0648 \u0641\u0627\u06cc\u0644 \u06a9\u0627\u0646\u0641\u06cc\u06af \u0645\u06cc\u200c\u067e\u0631\u062f\u0627\u0632\u06cc\u0645.<\/p>\n\n<h2 class=\"wp-block-heading\" id=\"h-concepts\"><span id=\"%d9%85%d9%81%d8%a7%d9%87%db%8c%d9%85-%d8%a7%d8%b5%d9%84%db%8c-nftables\">\u0645\u0641\u0627\u0647\u06cc\u0645 \u0627\u0635\u0644\u06cc nftables<\/span><\/h2>\n<p class=\"wp-block-paragraph\"><strong>nftables<\/strong> \u0627\u062c\u0632\u0627\u06cc \u0645\u0634\u062e\u0635\u06cc \u062f\u0627\u0631\u062f \u06a9\u0647 \u0628\u0631\u0627\u06cc \u0637\u0631\u0627\u062d\u06cc \u06cc\u06a9 ruleset \u0628\u0627\u06cc\u062f \u0628\u0627 \u0622\u0646\u200c\u0647\u0627 \u0622\u0634\u0646\u0627 \u0628\u0627\u0634\u06cc\u062f:<\/p>\n<ul>\n<li><strong>family<\/strong>: \u062e\u0627\u0646\u0648\u0627\u062f\u0647 \u067e\u0631\u0648\u062a\u06a9\u0644 (\u0645\u062b\u0644\u0627\u064b <em>inet<\/em> \u0628\u0631\u0627\u06cc \u0647\u0645\u200c\u0632\u0645\u0627\u0646 IPv4 \u0648 IPv6\u060c ip\u060c ip6\u060c arp\u060c bridge).<\/li>\n<li><strong>table<\/strong>: \u06a9\u0627\u0646\u062a\u06cc\u0646\u0631 \u0642\u0648\u0627\u0646\u06cc\u0646 (\u0645\u062b\u0644\u0627\u064b <em>inet filter<\/em>).<\/li>\n<li><strong>chain<\/strong>: \u0632\u0646\u062c\u06cc\u0631\u0647 \u0642\u0648\u0627\u0646\u06cc\u0646 \u0628\u0627 hook \u0648 type (input, forward, output) \u0648 priority.<\/li>\n<li><strong>rule<\/strong>: \u0634\u0631\u0637\u200c\u0647\u0627 \u0648 \u0627\u06a9\u0634\u0646\u200c\u0647\u0627 (accept, drop, reject, counter, log).<\/li>\n<li><strong>set \/ map<\/strong>: \u0645\u062c\u0645\u0648\u0639\u0647\u200c\u0647\u0627 \u0628\u0631\u0627\u06cc \u0646\u06af\u0647\u062f\u0627\u0631\u06cc IP\u0647\u0627\u060c \u067e\u0648\u0631\u062a\u200c\u0647\u0627 \u06cc\u0627 \u0645\u0642\u0627\u062f\u06cc\u0631 \u0628\u0631\u0627\u06cc matching \u0633\u0631\u06cc\u0639.<\/li>\n<li><strong>conntrack<\/strong>: \u0631\u0647\u06af\u06cc\u0631\u06cc \u0648\u0636\u0639\u06cc\u062a \u0627\u062a\u0635\u0627\u0644\u0627\u062a (established, related, new, invalid).<\/li>\n<\/ul>\n<h2 class=\"wp-block-heading\" id=\"h-why\"><span id=\"%da%86%d8%b1%d8%a7-nftables%d8%9f\">\u0686\u0631\u0627 nftables\u061f<\/span><\/h2>\n<p class=\"wp-block-paragraph\">\u062f\u0644\u0627\u06cc\u0644 \u0627\u0635\u0644\u06cc \u0627\u0646\u062a\u062e\u0627\u0628 <em>nftables<\/em> \u0639\u0628\u0627\u0631\u062a\u200c\u0627\u0646\u062f \u0627\u0632:<\/p>\n<ul>\n<li><strong>\u067e\u0634\u062a\u06cc\u0628\u0627\u0646\u06cc \u0647\u0645\u200c\u0632\u0645\u0627\u0646 IPv4 \u0648 IPv6<\/strong> \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 family <em>inet<\/em>.<\/li>\n<li><strong>\u0639\u0645\u0644\u06a9\u0631\u062f \u0628\u0647\u062a\u0631<\/strong> \u0648 \u0627\u0645\u06a9\u0627\u0646 <em>atomic replace<\/em> \u0628\u0631\u0627\u06cc \u0628\u0627\u0631\u06af\u0630\u0627\u0631\u06cc \u0627\u0645\u0646 ruleset.<\/li>\n<li>\u067e\u0634\u062a\u06cc\u0628\u0627\u0646\u06cc \u0627\u0632 <strong>set\u0647\u0627 \u0628\u0627 timeout<\/strong> \u0648 <em>maps<\/em> \u0628\u0631\u0627\u06cc NAT \u067e\u06cc\u0634\u0631\u0641\u062a\u0647.<\/li>\n<li>\u0633\u0627\u0632\u06af\u0627\u0631\u06cc \u0628\u0627 iptables \u0627\u0632 \u0637\u0631\u06cc\u0642 compatibility layer \u062f\u0631 \u062a\u0648\u0632\u06cc\u0639\u200c\u0647\u0627\u06cc \u062c\u062f\u06cc\u062f.<\/li>\n<\/ul>\n<h2 class=\"wp-block-heading\" id=\"h-start\"><span id=\"%d8%b4%d8%b1%d9%88%d8%b9-%d8%b3%d8%b1%db%8c%d8%b9-%d9%86%d8%b5%d8%a8%d8%8c-%d8%a8%d8%b1%d8%b1%d8%b3%db%8c-%d9%88-%d8%b0%d8%ae%db%8c%d8%b1%d9%87%d8%b3%d8%a7%d8%b2%db%8c-%d9%82%d9%88%d8%a7\">\u0634\u0631\u0648\u0639 \u0633\u0631\u06cc\u0639: \u0646\u0635\u0628\u060c \u0628\u0631\u0631\u0633\u06cc \u0648 \u0630\u062e\u06cc\u0631\u0647\u200c\u0633\u0627\u0632\u06cc \u0642\u0648\u0627\u0646\u06cc\u0646<\/span><\/h2>\n<p class=\"wp-block-paragraph\">\u062f\u0633\u062a\u0648\u0631\u0627\u062a \u067e\u0627\u06cc\u0647 \u0628\u0631\u0627\u06cc \u0628\u0631\u0631\u0633\u06cc\u060c \u0628\u0627\u0631\u06af\u0630\u0627\u0631\u06cc \u0648 \u0630\u062e\u06cc\u0631\u0647\u200c\u0633\u0627\u0632\u06cc ruleset:<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-bash\" data-lang=\"Bash\"><code>nft --version\nnft list ruleset\nnft -f \/etc\/nftables.conf\nnft list ruleset &gt; \/etc\/nftables.conf\nsystemctl enable --now nftables<\/code><\/pre>\n<\/div>\n<div class=\"pk-alert pk-alert-warning\" role=\"alert\" >\n\u0642\u0628\u0644 \u0627\u0632 \u0627\u0639\u0645\u0627\u0644 \u0642\u0648\u0627\u0646\u06cc\u0646 \u062c\u062f\u06cc\u062f\u060c \u062d\u062a\u0645\u0627\u064b \u0631\u0627\u0647 \u062f\u0633\u062a\u0631\u0633\u06cc SSH \u062e\u0648\u062f \u0631\u0627 \u0628\u0627\u0632 \u0628\u06af\u0630\u0627\u0631\u06cc\u062f \u06cc\u0627 \u0627\u0632 \u06cc\u06a9 \u06a9\u0646\u0633\u0648\u0644 \u0645\u0633\u062a\u0642\u06cc\u0645 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f \u062a\u0627 \u0627\u0632 \u0642\u0641\u0644 \u0634\u062f\u0646 (lockout) \u062c\u0644\u0648\u06af\u06cc\u0631\u06cc \u0634\u0648\u062f.<br \/>\n<\/div>\n<h2 class=\"wp-block-heading\" id=\"h-basic-ruleset\"><span id=\"%d9%85%d8%ab%d8%a7%d9%84-%d8%b9%d9%85%d9%84%db%8c-%db%8c%da%a9-ruleset-%d9%be%d8%a7%db%8c%d9%87-%d8%a8%d8%b1%d8%a7%db%8c-%d8%b3%d8%b1%d9%88%d8%b1-%d9%84%db%8c%d9%86%d9%88%da%a9%d8%b3%db%8c\">\u0645\u062b\u0627\u0644 \u0639\u0645\u0644\u06cc: \u06cc\u06a9 ruleset \u067e\u0627\u06cc\u0647 (\u0628\u0631\u0627\u06cc \u0633\u0631\u0648\u0631 \u0644\u06cc\u0646\u0648\u06a9\u0633\u06cc)<\/span><\/h2>\n<p class=\"wp-block-paragraph\">\u0641\u0627\u06cc\u0644 \u067e\u06cc\u0634\u0646\u0647\u0627\u062f\u06cc \/etc\/nftables.conf \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 family <em>inet<\/em> \u062a\u0627 \u0647\u0645 IPv4 \u0648 \u0647\u0645 IPv6 \u067e\u0648\u0634\u0634 \u062f\u0627\u062f\u0647 \u0634\u0648\u062f:<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-bash\" data-lang=\"Bash\"><code>table inet filter {\n    set allowed_ssh {\n        type ipv4_addr; flags timeout;\n    }\n\n    chain input {\n        type filter hook input priority 0;\n        policy drop;\n\n        # loopback\n        iif \"lo\" accept\n\n        # established\/related\n        ct state established,related accept\n\n        # ICMP\/ICMPv6\n        ip protocol icmp accept\n        ip6 nexthdr ipv6-icmp accept\n\n        # Allow SSH with rate limit & whitelist\n        tcp dport 22 ct state new limit rate 3\/minute accept\n        ip saddr @allowed_ssh accept\n\n        # HTTP\/HTTPS\n        tcp dport { 80, 443 } ct state new accept\n\n        # DNS\n        udp dport 53 accept\n        tcp dport 53 accept\n\n        # log and drop others\n        counter log prefix \"nft-drop: \" flags all drop\n    }\n\n    chain forward {\n        type filter hook forward priority 0; policy drop;\n    }\n\n    chain output {\n        type filter hook output priority 0; policy accept;\n    }\n}<\/code><\/pre>\n<\/div>\n<p class=\"wp-block-paragraph\"><strong>\u062a\u0648\u0636\u06cc\u062d:<\/strong> \u0627\u06cc\u0646 ruleset \u067e\u0627\u06cc\u0647 loopback\u060c \u0627\u062a\u0635\u0627\u0644\u0627\u062a \u0645\u0648\u062c\u0648\u062f\u060c SSH (\u0628\u0627 rate limit)\u060c HTTP\/HTTPS \u0648 DNS \u0631\u0627 \u0627\u062c\u0627\u0632\u0647 \u0645\u06cc\u200c\u062f\u0647\u062f \u0648 \u0628\u0642\u06cc\u0647 \u062a\u0631\u0627\u0641\u06cc\u06a9 \u0631\u0627 \u0644\u0627\u06af \u0648 drop \u0645\u06cc\u200c\u06a9\u0646\u062f. <strong>set allowed_ssh<\/strong> \u0628\u0631\u0627\u06cc whitelist \u0622\u06cc\u200c\u067e\u06cc\u200c\u0647\u0627 \u0628\u0627 timeout \u0645\u0646\u0627\u0633\u0628 \u0627\u0633\u062a.<\/p>\n<h2 class=\"wp-block-heading\" id=\"h-sets\"><span id=\"%d9%85%d8%af%db%8c%d8%b1%db%8c%d8%aa-set%d9%87%d8%a7-%d9%88-%d8%a8%d9%84%d8%a7%da%a9-%d9%85%d9%88%d9%82%d8%aa\">\u0645\u062f\u06cc\u0631\u06cc\u062a set\u0647\u0627 \u0648 \u0628\u0644\u0627\u06a9 \u0645\u0648\u0642\u062a<\/span><\/h2>\n<p class=\"wp-block-paragraph\">\u0627\u06cc\u062c\u0627\u062f \u0648 \u0645\u062f\u06cc\u0631\u06cc\u062a set\u0647\u0627 \u0628\u0631\u0627\u06cc whitelist \u06cc\u0627 blacklist \u0628\u0633\u06cc\u0627\u0631 \u06a9\u0627\u0631\u0628\u0631\u062f\u06cc \u0627\u0633\u062a. \u0645\u062b\u0627\u0644\u200c\u0647\u0627:<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-bash\" data-lang=\"Bash\"><code>nft add element inet filter allowed_ssh { 203.0.113.5 timeout 1h }\nnft list set inet filter allowed_ssh<\/code><\/pre>\n<\/div>\n<p class=\"wp-block-paragraph\">\u0628\u0631\u0627\u06cc \u0628\u0644\u0627\u06a9 \u0645\u0648\u0642\u062a \u0645\u0647\u0627\u062c\u0645\u06cc\u0646\u060c \u06cc\u06a9 set \u0628\u0627 flag <em>timeout<\/em> \u0628\u0633\u0627\u0632\u06cc\u062f \u0648 \u0622\u06cc\u200c\u067e\u06cc\u200c\u0647\u0627 \u0631\u0627 \u0628\u0631\u0627\u06cc \u0645\u062f\u062a \u0645\u0634\u062e\u0635 \u0627\u0636\u0627\u0641\u0647 \u06a9\u0646\u06cc\u062f.<\/p>\n<h2 class=\"wp-block-heading\" id=\"h-nat\"><span id=\"nat%d8%8c-port-forwarding-%d9%88-masquerade\">NAT\u060c Port Forwarding \u0648 Masquerade<\/span><\/h2>\n<p class=\"wp-block-paragraph\">\u0646\u0645\u0648\u0646\u0647 NAT \u0628\u0631\u0627\u06cc VPS \u06a9\u0647 \u0686\u0646\u062f \u0633\u0631\u0648\u06cc\u0633 \u0631\u0627 \u067e\u0634\u062a \u06cc\u06a9 IP \u062e\u0635\u0648\u0635\u06cc \u0645\u0646\u062a\u0634\u0631 \u0645\u06cc\u200c\u06a9\u0646\u062f:<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-bash\" data-lang=\"Bash\"><code>table ip nat {\n    chain prerouting {\n        type nat hook prerouting priority 0;\n        tcp dport 2222 dnat to 10.0.0.10:22\n        tcp dport 8443 dnat to 10.0.0.20:443\n    }\n\n    chain postrouting {\n        type nat hook postrouting priority 100;\n        oif \"eth0\" masquerade\n    }\n}<\/code><\/pre>\n<\/div>\n<p class=\"wp-block-paragraph\"><em>\u0646\u06a9\u062a\u0647:<\/em> \u062f\u0631 \u0645\u0639\u0645\u0627\u0631\u06cc\u200c\u0647\u0627\u06cc cloud \u0628\u0627 \u0686\u0646\u062f\u06cc\u0646 \u0622\u062f\u0631\u0633\u060c \u0627\u0632 masquerade \u06cc\u0627 src NAT \u0628\u0631\u0627\u06cc \u062e\u0631\u0648\u062c\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f. \u0628\u0631\u0627\u06cc IPv6 \u0627\u0632 DNAT \u06cc\u0627 CIDR mapping \u0645\u0646\u0627\u0633\u0628 \u0628\u0647\u0631\u0647 \u0628\u0628\u0631\u06cc\u062f.<\/p>\n<h2 class=\"wp-block-heading\" id=\"h-ddos\"><span id=\"%d9%85%d9%82%d8%a7%d8%a8%d9%84%d9%87-%d8%a8%d8%a7-ddos-%d9%88-%d8%ad%d9%85%d9%84%d8%a7%d8%aa-syn\">\u0645\u0642\u0627\u0628\u0644\u0647 \u0628\u0627 DDoS \u0648 \u062d\u0645\u0644\u0627\u062a SYN<\/span><\/h2>\n<p class=\"wp-block-paragraph\">nftables \u0627\u0645\u06a9\u0627\u0646\u0627\u062a\u06cc \u0628\u0631\u0627\u06cc \u0646\u0631\u062e\u200c\u0645\u062d\u062f\u0648\u062f\u0633\u0627\u0632\u06cc \u0648 flowtable \u062f\u0627\u0631\u062f \u06a9\u0647 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646 \u0627\u0632 \u0622\u0646\u200c\u0647\u0627 \u0628\u0631\u0627\u06cc \u06a9\u0627\u0647\u0634 \u0627\u062b\u0631 \u062d\u0645\u0644\u0627\u062a \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0631\u062f.<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-bash\" data-lang=\"Bash\"><code># allow limited number of new SYNs per second\ntcp flags syn ct state new limit rate 10\/second burst 20 accept\n\n# synproxy can be used in extreme cases (kernel feature)\n# nftables can match and direct traffic to synproxy or other mitigations<\/code><\/pre>\n<\/div>\n<p class=\"wp-block-paragraph\">\u0628\u0631\u0627\u06cc \u062d\u0645\u0644\u0627\u062a \u062d\u062c\u0645\u06cc \u0628\u0632\u0631\u06af\u060c \u062a\u0631\u06a9\u06cc\u0628 \u0641\u0627\u06cc\u0631\u0648\u0627\u0644 \u0633\u0631\u0648\u0631 (<em>nftables<\/em>) \u0628\u0627 \u06cc\u06a9 <strong>\u0644\u0627\u06cc\u0647 \u0636\u062f DDoS \u0634\u0628\u06a9\u0647\u200c\u0627\u06cc<\/strong> \u0628\u0647\u062a\u0631\u06cc\u0646 \u0631\u0648\u06cc\u06a9\u0631\u062f \u0627\u0633\u062a \u062a\u0627 \u062a\u0631\u0627\u0641\u06cc\u06a9 \u0645\u062e\u0631\u0628 \u0642\u0628\u0644 \u0627\u0632 \u0631\u0633\u06cc\u062f\u0646 \u0628\u0647 \u0633\u0631\u0648\u0631 \u0641\u06cc\u0644\u062a\u0631 \u0634\u0648\u062f.<\/p>\n<h2 class=\"wp-block-heading\" id=\"h-logging\"><span id=\"%d9%84%d8%a7%da%af%db%8c%d9%86%da%af-%d9%88-%d9%85%d8%a7%d9%86%db%8c%d8%aa%d9%88%d8%b1%db%8c%d9%86%da%af-%d9%82%d9%88%d8%a7%d9%86%db%8c%d9%86\">\u0644\u0627\u06af\u06cc\u0646\u06af \u0648 \u0645\u0627\u0646\u06cc\u062a\u0648\u0631\u06cc\u0646\u06af \u0642\u0648\u0627\u0646\u06cc\u0646<\/span><\/h2>\n<p class=\"wp-block-paragraph\">\u0627\u0628\u0632\u0627\u0631\u0647\u0627 \u0648 \u062f\u0633\u062a\u0648\u0631\u0627\u062a \u0645\u0641\u06cc\u062f \u0628\u0631\u0627\u06cc \u0645\u0627\u0646\u06cc\u062a\u0648\u0631\u06cc\u0646\u06af:<\/p>\n<ul>\n<li>\u0646\u0645\u0627\u06cc\u0634 counters \u0628\u0631\u0627\u06cc \u0647\u0631 rule: <em>nft list ruleset<\/em>.<\/li>\n<li>\u0641\u0639\u0627\u0644\u200c\u0633\u0627\u0632\u06cc \u0644\u0627\u06af \u0628\u0627 prefix \u0648 \u0645\u062d\u062f\u0648\u062f\u0633\u0627\u0632\u06cc \u0646\u0631\u062e:<\/li>\n<\/ul>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-bash\" data-lang=\"Bash\"><code>nft add rule inet filter input tcp dport 22 counter log prefix \"ssh-drop: \" limit rate 10\/minute drop<\/code><\/pre>\n<\/div>\n<p class=\"wp-block-paragraph\">\u0627\u0628\u0632\u0627\u0631\u0647\u0627\u06cc \u062f\u06cc\u06af\u0631: <em>journalctl -f -u nftables<\/em>, <em>tcpdump<\/em>, <em>tshark<\/em>, \u0648 <em>nft monitor<\/em>.<\/p>\n<h2 class=\"wp-block-heading\" id=\"h-security\"><span id=\"%d9%86%da%a9%d8%a7%d8%aa-%d8%a7%d9%85%d9%86%db%8c%d8%aa%db%8c-%d8%b9%d9%85%d9%84%db%8c\">\u0646\u06a9\u0627\u062a \u0627\u0645\u0646\u06cc\u062a\u06cc \u0639\u0645\u0644\u06cc<\/span><\/h2>\n<p class=\"wp-block-paragraph\">\u0686\u0646\u062f \u062a\u0648\u0635\u06cc\u0647 \u0639\u0645\u0644\u06cc \u0648 \u0645\u0647\u0645:<\/p>\n<ul>\n<li><strong>\u0647\u0645\u06cc\u0634\u0647 \u067e\u0634\u062a\u06cc\u0628\u0627\u0646 \u0628\u06af\u06cc\u0631\u06cc\u062f:<\/strong> \u0642\u0628\u0644 \u0627\u0632 deploy\u060c \u062e\u0631\u0648\u062c\u06cc <em>nft list ruleset<\/em> \u0631\u0627 \u0630\u062e\u06cc\u0631\u0647 \u06a9\u0646\u06cc\u062f.<\/li>\n<li><strong>\u0627\u0632 \u0628\u0627\u0631\u06af\u0630\u0627\u0631\u06cc \u0627\u062a\u0645\u06cc\u06a9 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f:<\/strong> <em>nft -f \/etc\/nftables.conf<\/em> \u0628\u0647\u200c\u0635\u0648\u0631\u062a atomic \u0641\u0627\u06cc\u0644 \u0631\u0627 \u0644\u0648\u062f \u0645\u06cc\u200c\u06a9\u0646\u062f.<\/li>\n<li><strong>\u0627\u0632 \u0642\u0641\u0644 \u0634\u062f\u0646 SSH \u062c\u0644\u0648\u06af\u06cc\u0631\u06cc \u06a9\u0646\u06cc\u062f:<\/strong> \u06cc\u06a9 rule accept \u0645\u0648\u0642\u062a \u0628\u0631\u0627\u06cc IP \u062e\u0648\u062f \u0642\u0631\u0627\u0631 \u062f\u0647\u06cc\u062f \u06cc\u0627 \u0627\u0632 \u06a9\u0646\u0633\u0648\u0644 \u0628\u06cc\u0631\u0648\u0646\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f.<\/li>\n<li><strong>\u0627\u0633\u06a9\u0631\u06cc\u067e\u062a undo \u062e\u0648\u062f\u06a9\u0627\u0631:<\/strong> \u0647\u0646\u06af\u0627\u0645 \u0627\u0639\u0645\u0627\u0644 \u062a\u063a\u06cc\u06cc\u0631\u0627\u062a \u062d\u0633\u0627\u0633\u060c \u06cc\u06a9 rollback \u062e\u0648\u062f\u06a9\u0627\u0631 \u062f\u0631 \u0635\u0648\u0631\u062a \u0639\u062f\u0645 \u062a\u0623\u06cc\u06cc\u062f \u062a\u0646\u0638\u06cc\u0645 \u06a9\u0646\u06cc\u062f.<\/li>\n<\/ul>\n<div class=\"pk-alert pk-alert-info\" role=\"alert\" >\n\u0628\u0631\u0627\u06cc \u062c\u0644\u0648\u06af\u06cc\u0631\u06cc \u0627\u0632 \u0645\u0634\u06a9\u0644\u0627\u062a \u0627\u062d\u062a\u0645\u0627\u0644\u06cc \u062f\u0631 \u0627\u062a\u0635\u0627\u0644 SSH\u060c \u0642\u0628\u0644 \u0627\u0632 \u0627\u0639\u0645\u0627\u0644 \u0642\u0648\u0627\u0646\u06cc\u0646 \u0645\u062d\u062f\u0648\u062f\u06a9\u0646\u0646\u062f\u0647 \u06cc\u06a9 rule accept \u0645\u0648\u0642\u062a \u0628\u0631\u0627\u06cc IP \u0645\u062f\u06cc\u0631\u06cc\u062a\u06cc \u062e\u0648\u062f \u0642\u0631\u0627\u0631 \u062f\u0647\u06cc\u062f \u06cc\u0627 \u0627\u0632 \u0631\u0648\u0634\u200c\u0647\u0627\u06cc rollback \u0627\u062a\u0645\u06cc\u06a9 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f.<br \/>\n<\/div>\n<h2 class=\"wp-block-heading\" id=\"h-usecases\"><span id=\"%d9%86%da%a9%d8%a7%d8%aa-%d8%b9%d9%85%d9%84%db%8c-%d8%a8%d8%b1%d8%a7%db%8c-%da%a9%d8%a7%d8%b1%d8%a8%d8%b1%d8%af%d9%87%d8%a7%db%8c-%d9%85%d8%ae%d8%aa%d9%84%d9%81\">\u0646\u06a9\u0627\u062a \u0639\u0645\u0644\u06cc \u0628\u0631\u0627\u06cc \u06a9\u0627\u0631\u0628\u0631\u062f\u0647\u0627\u06cc \u0645\u062e\u062a\u0644\u0641<\/span><\/h2>\n<h3 class=\"wp-block-heading\" id=\"h-usecases-web\"><span id=\"%d8%a8%d8%b1%d8%a7%db%8c-%d9%85%d8%af%db%8c%d8%b1%d8%a7%d9%86-%d9%88%d8%b1%d8%af%d9%be%d8%b1%d8%b3-%d9%88-%d9%88%d8%a8%d8%b3%d8%a7%db%8c%d8%aa%d9%87%d8%a7\">\u0628\u0631\u0627\u06cc \u0645\u062f\u06cc\u0631\u0627\u0646 \u0648\u0631\u062f\u067e\u0631\u0633 \u0648 \u0648\u0628\u200c\u0633\u0627\u06cc\u062a\u200c\u0647\u0627<\/span><\/h3>\n<p class=\"wp-block-paragraph\">\u062a\u0646\u0647\u0627 \u067e\u0648\u0631\u062a\u200c\u0647\u0627\u06cc \u0636\u0631\u0648\u0631\u06cc (80\/443\/22) \u0631\u0627 \u0628\u0627\u0632 \u06a9\u0646\u06cc\u062f. \u0627\u0632 rate limit \u0628\u0631\u0627\u06cc \u0641\u0631\u0645\u200c\u0647\u0627\u06cc \u0648\u0631\u0648\u062f \u0648 XML-RPC \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f \u0648 \u0645\u062c\u0645\u0648\u0639\u0647\u200c\u0627\u06cc \u0627\u0632 IP\u0647\u0627\u06cc \u067e\u0646\u0627\u0644\u062a\u06cc \u0628\u0631\u0627\u06cc \u062c\u0644\u0648\u06af\u06cc\u0631\u06cc \u0627\u0632 brute-force \u0628\u0633\u0627\u0632\u06cc\u062f. \u062a\u0631\u06a9\u06cc\u0628 \u0628\u0627 CDN \u0648 WAF \u062a\u0648\u0635\u06cc\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f.<\/p>\n<h3 class=\"wp-block-heading\" id=\"h-usecases-devops\"><span id=\"%d8%a8%d8%b1%d8%a7%db%8c-%d8%a8%d8%b1%d9%86%d8%a7%d9%85%d9%87%d9%86%d9%88%db%8c%d8%b3%d8%a7%d9%86-%d9%88-devops\">\u0628\u0631\u0627\u06cc \u0628\u0631\u0646\u0627\u0645\u0647\u200c\u0646\u0648\u06cc\u0633\u0627\u0646 \u0648 DevOps<\/span><\/h3>\n<p class=\"wp-block-paragraph\">\u0627\u0632 family <em>inet<\/em> \u0628\u0631\u0627\u06cc \u0647\u0645\u200c\u0632\u0645\u0627\u0646 \u067e\u0634\u062a\u06cc\u0628\u0627\u0646\u06cc IPv4\/IPv6 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f. \u0642\u0648\u0627\u0646\u06cc\u0646 \u0631\u0627 \u062f\u0631 VCS \u0646\u06af\u0647\u062f\u0627\u0631\u06cc \u0648 \u0627\u0632 CI\/CD \u0628\u0631\u0627\u06cc \u0627\u0639\u0645\u0627\u0644 \u062e\u0648\u062f\u06a9\u0627\u0631 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f. \u0628\u0631\u0627\u06cc \u062a\u0633\u062a \u062a\u063a\u06cc\u06cc\u0631\u0627\u062a \u0627\u0632 \u0628\u0627\u0631\u06af\u0630\u0627\u0631\u06cc \u0627\u0632 \u0641\u0627\u06cc\u0644 \u0648 \u0642\u0627\u0628\u0644\u06cc\u062a rollback \u0633\u0631\u06cc\u0639 \u0628\u0647\u0631\u0647 \u0628\u0628\u0631\u06cc\u062f.<\/p>\n<h3 class=\"wp-block-heading\" id=\"h-usecases-trader\"><span id=\"%d8%a8%d8%b1%d8%a7%db%8c-%d8%aa%d8%b1%db%8c%d8%af%d8%b1%d9%87%d8%a7-vps-%d9%85%d8%ae%d8%b5%d9%88%d8%b5-%d8%aa%d8%b1%db%8c%d8%af\">\u0628\u0631\u0627\u06cc \u062a\u0631\u06cc\u062f\u0631\u0647\u0627 (VPS \u0645\u062e\u0635\u0648\u0635 \u062a\u0631\u06cc\u062f)<\/span><\/h3>\n<p class=\"wp-block-paragraph\">\u0644\u0648\u06a9\u06cc\u0634\u0646 \u0646\u0632\u062f\u06cc\u06a9 \u0628\u0647 \u0633\u0631\u0648\u0631\u0647\u0627\u06cc \u0628\u0631\u0648\u06a9\u0631 \u06cc\u0627 \u0635\u0631\u0627\u0641\u06cc \u0628\u0631\u0627\u06cc \u06a9\u0645\u062a\u0631\u06cc\u0646 latency \u0627\u0646\u062a\u062e\u0627\u0628 \u06a9\u0646\u06cc\u062f. \u062a\u0631\u0627\u0641\u06cc\u06a9 inbound \u0648 outbound \u0631\u0627 \u0628\u0647 IP\u0647\u0627\u06cc \u0644\u0627\u0632\u0645 \u0645\u062d\u062f\u0648\u062f \u06a9\u0646\u06cc\u062f \u0648 \u0627\u0632 whitelist \u0628\u0631\u0627\u06cc \u062c\u0644\u0648\u06af\u06cc\u0631\u06cc \u0627\u0632 \u0628\u0633\u062a\u0647\u200c\u0634\u062f\u0646 \u067e\u0648\u0631\u062a\u200c\u0647\u0627 \u062f\u0631 \u0632\u0645\u0627\u0646 \u0622\u067e\u062f\u06cc\u062a \u0628\u0647\u0631\u0647 \u0628\u0628\u0631\u06cc\u062f.<\/p>\n<h3 class=\"wp-block-heading\" id=\"h-usecases-gaming\"><span id=\"%d8%a8%d8%b1%d8%a7%db%8c-%da%af%db%8c%d9%85%d8%b1%d9%87%d8%a7-vps-%d9%85%d8%ae%d8%b5%d9%88%d8%b5-%da%af%db%8c%d9%85\">\u0628\u0631\u0627\u06cc \u06af\u06cc\u0645\u0631\u0647\u0627 (VPS \u0645\u062e\u0635\u0648\u0635 \u06af\u06cc\u0645)<\/span><\/h3>\n<p class=\"wp-block-paragraph\">\u067e\u0648\u0631\u062a\u200c\u0647\u0627\u06cc UDP \u0645\u0648\u0631\u062f \u0646\u06cc\u0627\u0632 \u0628\u0627\u0632\u06cc \u0631\u0627 \u0628\u0627\u0632 \u06a9\u0646\u06cc\u062f \u0648 conntrack timeouts \u0631\u0627 \u0628\u0631\u0627\u06cc UDP \u0628\u0647\u06cc\u0646\u0647 \u06a9\u0646\u06cc\u062f. \u062f\u0631 \u0635\u0648\u0631\u062a \u0646\u06cc\u0627\u0632 \u0628\u0647 NAT\u060c \u0627\u0632 flowtable \u0628\u0631\u0627\u06cc \u0639\u0645\u0644\u06a9\u0631\u062f \u0628\u0647\u062a\u0631 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f \u0648 \u0644\u0648\u06a9\u06cc\u0634\u0646 \u0628\u0627 \u067e\u06cc\u0646\u06af \u067e\u0627\u06cc\u06cc\u0646 \u0627\u0646\u062a\u062e\u0627\u0628 \u0646\u0645\u0627\u06cc\u06cc\u062f.<\/p>\n<h3 class=\"wp-block-heading\" id=\"h-usecases-ai\"><span id=\"%d8%a8%d8%b1%d8%a7%db%8c-%d9%87%d9%88%d8%b4-%d9%85%d8%b5%d9%86%d9%88%d8%b9%db%8c-%d9%88-gpu-cloud\">\u0628\u0631\u0627\u06cc \u0647\u0648\u0634 \u0645\u0635\u0646\u0648\u0639\u06cc \u0648 GPU Cloud<\/span><\/h3>\n<p class=\"wp-block-paragraph\">\u062f\u0633\u062a\u0631\u0633\u06cc \u0628\u0647 \u067e\u0648\u0631\u062a\u200c\u0647\u0627\u06cc \u0645\u062f\u06cc\u0631\u06cc\u062a (SSH, Kubernetes API) \u0631\u0627 \u0641\u0642\u0637 \u0627\u0632 IP\u0647\u0627\u06cc \u0645\u0634\u062e\u0635 \u0645\u062c\u0627\u0632 \u06a9\u0646\u06cc\u062f. \u062f\u0631 \u0645\u062d\u06cc\u0637\u200c\u0647\u0627\u06cc \u062a\u0648\u0632\u06cc\u0639\u200c\u0634\u062f\u0647 \u0642\u0648\u0627\u0646\u06cc\u0646 \u0628\u06cc\u0646 \u0646\u0648\u062f\u0647\u0627 \u0631\u0627 \u062a\u0639\u0631\u06cc\u0641 \u0648 \u0639\u0645\u0644\u06a9\u0631\u062f conntrack \u0631\u0627 \u0628\u0631\u0631\u0633\u06cc \u06a9\u0646\u06cc\u062f. \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0634\u0628\u06a9\u0647 \u0627\u062e\u062a\u0635\u0627\u0635\u06cc \u0648 BGP\/Private VLAN \u0628\u0631\u0627\u06cc \u0627\u0645\u0646\u06cc\u062a \u0648 throughput \u0628\u0627\u0644\u0627 \u062a\u0648\u0635\u06cc\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f.<\/p>\n<h2 class=\"wp-block-heading\" id=\"h-maintenance\"><span id=\"%d9%86%da%a9%d8%a7%d8%aa-%d8%b9%d9%85%d9%84%db%8c-%d8%a8%d8%b1%d8%a7%db%8c-%d9%be%db%8c%d8%a7%d8%af%d9%87%d8%b3%d8%a7%d8%b2%db%8c-%d9%88-%d9%86%da%af%d9%87%d8%af%d8%a7%d8%b1%db%8c\">\u0646\u06a9\u0627\u062a \u0639\u0645\u0644\u06cc \u0628\u0631\u0627\u06cc \u067e\u06cc\u0627\u062f\u0647\u200c\u0633\u0627\u0632\u06cc \u0648 \u0646\u06af\u0647\u062f\u0627\u0631\u06cc<\/span><\/h2>\n<p class=\"wp-block-paragraph\">\u0686\u0646\u062f \u0646\u06a9\u062a\u0647 \u0639\u0645\u0644\u06cc \u0628\u0631\u0627\u06cc \u0641\u0631\u0627\u06cc\u0646\u062f \u0646\u06af\u0647\u062f\u0627\u0631\u06cc:<\/p>\n<ul>\n<li>\u067e\u0634\u062a\u06cc\u0628\u0627\u0646\u200c\u06af\u06cc\u0631\u06cc \u0647\u0645\u06cc\u0634\u06af\u06cc \u0627\u0632 ruleset \u0642\u0628\u0644 \u0627\u0632 \u062a\u063a\u06cc\u06cc\u0631.<\/li>\n<li>\u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 <em>atomic replace<\/em> \u0628\u0627 <em>nft -f \/etc\/nftables.conf<\/em>.<\/li>\n<li>\u0642\u0631\u0627\u0631 \u062f\u0627\u062f\u0646 \u06cc\u06a9 rule \u0645\u0648\u0642\u062a accept \u0628\u0631\u0627\u06cc IP \u0645\u062f\u06cc\u0631\u06cc\u062a\u06cc \u0642\u0628\u0644 \u0627\u0632 \u0627\u0639\u0645\u0627\u0644 \u062a\u063a\u06cc\u06cc\u0631\u0627\u062a \u062d\u0633\u0627\u0633.<\/li>\n<li>\u0631\u0627\u0647\u200c\u0627\u0646\u062f\u0627\u0632\u06cc cron \u06cc\u0627 systemd-timer \u0628\u0631\u0627\u06cc rollback \u062e\u0648\u062f\u06a9\u0627\u0631 \u062f\u0631 \u0635\u0648\u0631\u062a \u0639\u062f\u0645 \u062a\u0623\u06cc\u06cc\u062f.<\/li>\n<\/ul>\n<h2 class=\"wp-block-heading\" id=\"h-tools\"><span id=\"%d8%a7%d8%a8%d8%b2%d8%a7%d8%b1%d9%87%d8%a7-%d9%88-%d8%af%db%8c%d8%a8%d8%a7%da%af\">\u0627\u0628\u0632\u0627\u0631\u0647\u0627 \u0648 \u062f\u06cc\u0628\u0627\u06af<\/span><\/h2>\n<p class=\"wp-block-paragraph\">\u0627\u0628\u0632\u0627\u0631\u0647\u0627\u06cc \u06a9\u0644\u06cc\u062f\u06cc \u0628\u0631\u0627\u06cc \u062f\u06cc\u0628\u0627\u06af \u0648 \u0645\u0627\u0646\u06cc\u062a\u0648\u0631\u06cc\u0646\u06af:<\/p>\n<ul>\n<li><em>nft list ruleset<\/em><\/li>\n<li><em>nft monitor<\/em> \/ <em>nft monitor trace<\/em><\/li>\n<li><em>ss -tunlp<\/em> \u0628\u0631\u0627\u06cc \u0646\u0645\u0627\u06cc\u0634 \u067e\u0648\u0631\u062a\u200c\u0647\u0627<\/li>\n<li><em>conntrack -L<\/em> \u0627\u0632 \u0628\u0633\u062a\u0647 conntrack-tools<\/li>\n<li><em>tcpdump<\/em> \u06cc\u0627 <em>tshark<\/em> \u0628\u0631\u0627\u06cc packet capture<\/li>\n<\/ul>\n<h2 class=\"wp-block-heading\" id=\"h-conclusion\"><span id=\"%d9%86%d8%aa%db%8c%d8%ac%d9%87%da%af%db%8c%d8%b1%db%8c-%d9%88-%d8%aa%d9%88%d8%b5%db%8c%d9%87%d9%87%d8%a7%db%8c-%d8%b9%d9%85%d9%84%db%8c\">\u0646\u062a\u06cc\u062c\u0647\u200c\u06af\u06cc\u0631\u06cc \u0648 \u062a\u0648\u0635\u06cc\u0647\u200c\u0647\u0627\u06cc \u0639\u0645\u0644\u06cc<\/span><\/h2>\n<p class=\"wp-block-paragraph\">nftables \u0627\u0628\u0632\u0627\u0631 \u0642\u062f\u0631\u062a\u0645\u0646\u062f\u06cc \u0627\u0633\u062a \u06a9\u0647 \u0645\u062f\u06cc\u0631\u06cc\u062a \u0641\u0627\u06cc\u0631\u0648\u0627\u0644 \u0631\u0627 \u0645\u062f\u0631\u0646\u060c \u0633\u0631\u06cc\u0639 \u0648 \u0645\u0646\u0639\u0637\u0641 \u0645\u06cc\u200c\u06a9\u0646\u062f. \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 family <em>inet<\/em>\u060c set\u0647\u0627\u060c rate limit \u0648 conntrack \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u062f \u06cc\u06a9 \u0644\u0627\u06cc\u0647 \u062d\u0641\u0627\u0638\u062a\u06cc \u0645\u0624\u062b\u0631 \u0628\u0633\u0627\u0632\u06cc\u062f \u06a9\u0647 \u0628\u0631\u0627\u06cc \u0648\u0628\u200c\u0633\u0631\u0648\u0631\u060c VPS \u062a\u0631\u06cc\u062f\u060c \u06af\u06cc\u0645\u06cc\u0646\u06af \u0648 GPU cloud \u0645\u0646\u0627\u0633\u0628 \u0627\u0633\u062a.<\/p>\n<p class=\"wp-block-paragraph\">\u062f\u0631 \u06a9\u0646\u0627\u0631 \u067e\u06cc\u06a9\u0631\u0628\u0646\u062f\u06cc \u0633\u0631\u0648\u0631\u060c \u062a\u0631\u06a9\u06cc\u0628 \u0628\u0627 \u0633\u0631\u0648\u06cc\u0633\u200c\u0647\u0627\u06cc \u0634\u0628\u06a9\u0647\u200c\u0627\u06cc \u0645\u0627\u0646\u0646\u062f CDN\u060c Anti-DDoS \u0648 BGP \u06a9\u0647 \u062f\u0631 \u06f8\u06f5+ \u0644\u0648\u06a9\u06cc\u0634\u0646 \u062c\u0647\u0627\u0646\u06cc \u0627\u0631\u0627\u0626\u0647 \u0645\u06cc\u200c\u0634\u0648\u0646\u062f\u060c \u0627\u0645\u0646\u06cc\u062a \u0648 \u062f\u0633\u062a\u0631\u0633\u06cc\u200c\u067e\u0630\u06cc\u0631\u06cc \u0631\u0627 \u0628\u0647 \u0633\u0637\u062d \u0642\u0627\u0628\u0644\u200c\u0627\u0637\u0645\u06cc\u0646\u0627\u0646\u200c\u062a\u0631\u06cc \u0645\u06cc\u200c\u0631\u0633\u0627\u0646\u062f.<\/p>\n<h2 class=\"wp-block-heading\" id=\"h-faq\"><span id=\"%d8%b3%d8%a4%d8%a7%d9%84%d8%a7%d8%aa-%d9%85%d8%aa%d8%af%d8%a7%d9%88%d9%84\">\u0633\u0624\u0627\u0644\u0627\u062a \u0645\u062a\u062f\u0627\u0648\u0644<\/span><\/h2>\n<div id=\"collapsibles-6a56a245deb41\" class=\"pk-collapsibles\" role=\"tablist\" aria-multiselectable=\"true\">\n<div class=\"pk-collapsible pk-card \">\n\t\t\t<div class=\"pk-card-header\" role=\"tab\" id=\"card-6a56a245dea7e\">\n\t\t\t\t<h6 class=\"pk-card-title pk-title\">\n\t\t\t\t\t<a data-toggle=\"collapse\" class=\"pk-font-heading\" href=\"#pk-collapse-6a56a245dea7e\" data-parent=\"#pk-collapsibles-6a56a245deb41\" aria-controls=\"collapse-6a56a245dea7e\">\n\t\t\t\t\t\t\u06f1. \u0686\u06af\u0648\u0646\u0647 \u0627\u0632 \u0642\u0641\u0644 \u0634\u062f\u0646 SSH \u0647\u0646\u06af\u0627\u0645 \u0627\u0639\u0645\u0627\u0644 \u0642\u0648\u0627\u0646\u06cc\u0646 \u062c\u0644\u0648\u06af\u06cc\u0631\u06cc \u06a9\u0646\u0645\u061f\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/h6>\n\t\t\t<\/div>\n\n\t\t\t<div id=\"pk-collapse-6a56a245dea7e\" class=\"pk-collapse\" style=\"display:none;\" role=\"tabpanel\" aria-labelledby=\"card-6a56a245dea7e\">\n\t\t\t\t<div class=\"pk-card-body\">\n\t\t\t\t\t\n\u0642\u0628\u0644 \u0627\u0632 \u0627\u0639\u0645\u0627\u0644 \u062a\u063a\u06cc\u06cc\u0631\u0627\u062a \u06cc\u06a9 rule accept \u0645\u0648\u0642\u062a \u0628\u0631\u0627\u06cc IP \u0645\u062f\u06cc\u0631\u06cc\u062a\u06cc \u062e\u0648\u062f \u0627\u0636\u0627\u0641\u0647 \u06a9\u0646\u06cc\u062f \u06cc\u0627 \u0627\u0632 \u06a9\u0646\u0633\u0648\u0644 \u0645\u0633\u062a\u0642\u06cc\u0645 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f. \u0647\u0645\u0686\u0646\u06cc\u0646 \u0627\u0632 \u0628\u0627\u0631\u06af\u0630\u0627\u0631\u06cc \u0627\u062a\u0645\u06cc\u06a9 \u0648 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a rollback \u062e\u0648\u062f\u06a9\u0627\u0631 \u0628\u0647\u0631\u0647 \u0628\u0628\u0631\u06cc\u062f.<br \/>\n\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t\n<div class=\"pk-collapsible pk-card \">\n\t\t\t<div class=\"pk-card-header\" role=\"tab\" id=\"card-6a56a245deaaa\">\n\t\t\t\t<h6 class=\"pk-card-title pk-title\">\n\t\t\t\t\t<a data-toggle=\"collapse\" class=\"pk-font-heading\" href=\"#pk-collapse-6a56a245deaaa\" data-parent=\"#pk-collapsibles-6a56a245deb41\" aria-controls=\"collapse-6a56a245deaaa\">\n\t\t\t\t\t\t\u06f2. nftables \u0628\u0647\u062a\u0631 \u0627\u0633\u062a \u06cc\u0627 iptables\u061f\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/h6>\n\t\t\t<\/div>\n\n\t\t\t<div id=\"pk-collapse-6a56a245deaaa\" class=\"pk-collapse\" style=\"display:none;\" role=\"tabpanel\" aria-labelledby=\"card-6a56a245deaaa\">\n\t\t\t\t<div class=\"pk-card-body\">\n\t\t\t\t\t\nnftables \u0646\u0633\u0644 \u062c\u062f\u06cc\u062f \u0627\u0633\u062a: \u067e\u0634\u062a\u06cc\u0628\u0627\u0646\u06cc \u0647\u0645\u200c\u0632\u0645\u0627\u0646 IPv4\/IPv6 \u0628\u0627 family inet\u060c performance \u0628\u0647\u062a\u0631 \u0648 atomic replace \u0627\u0632 \u0645\u0632\u0627\u06cc\u0627\u06cc \u0627\u0635\u0644\u06cc \u0622\u0646 \u0627\u0633\u062a.<br \/>\n\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t\n<div class=\"pk-collapsible pk-card \">\n\t\t\t<div class=\"pk-card-header\" role=\"tab\" id=\"card-6a56a245deacf\">\n\t\t\t\t<h6 class=\"pk-card-title pk-title\">\n\t\t\t\t\t<a data-toggle=\"collapse\" class=\"pk-font-heading\" href=\"#pk-collapse-6a56a245deacf\" data-parent=\"#pk-collapsibles-6a56a245deb41\" aria-controls=\"collapse-6a56a245deacf\">\n\t\t\t\t\t\t\u06f3. \u0686\u06af\u0648\u0646\u0647 \u06cc\u06a9 IP \u0631\u0627 \u0645\u0648\u0642\u062a\u0627\u064b \u0628\u0644\u0627\u06a9 \u06a9\u0646\u0645\u061f\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/h6>\n\t\t\t<\/div>\n\n\t\t\t<div id=\"pk-collapse-6a56a245deacf\" class=\"pk-collapse\" style=\"display:none;\" role=\"tabpanel\" aria-labelledby=\"card-6a56a245deacf\">\n\t\t\t\t<div class=\"pk-card-body\">\n\t\t\t\t\t\n\u06cc\u06a9 set \u0628\u0627 flag timeout \u0628\u0633\u0627\u0632\u06cc\u062f \u0648 \u0622\u06cc\u200c\u067e\u06cc \u0631\u0627 \u0628\u0627 \u0645\u0634\u062e\u0635 \u06a9\u0631\u062f\u0646 timeout \u0627\u0636\u0627\u0641\u0647 \u06a9\u0646\u06cc\u062f\u060c \u0645\u062b\u0644\u0627\u064b: nft add element inet filter allowed_ssh { 203.0.113.5 timeout 1h }.<br \/>\n\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t\n<div class=\"pk-collapsible pk-card \">\n\t\t\t<div class=\"pk-card-header\" role=\"tab\" id=\"card-6a56a245deaf3\">\n\t\t\t\t<h6 class=\"pk-card-title pk-title\">\n\t\t\t\t\t<a data-toggle=\"collapse\" class=\"pk-font-heading\" href=\"#pk-collapse-6a56a245deaf3\" data-parent=\"#pk-collapsibles-6a56a245deb41\" aria-controls=\"collapse-6a56a245deaf3\">\n\t\t\t\t\t\t\u06f4. \u0628\u0647\u062a\u0631\u06cc\u0646 \u0631\u0648\u06cc\u06a9\u0631\u062f \u0628\u0631\u0627\u06cc \u0645\u0642\u0627\u0628\u0644\u0647 \u0628\u0627 \u062d\u0645\u0644\u0627\u062a DDoS \u0686\u06cc\u0633\u062a\u061f\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/h6>\n\t\t\t<\/div>\n\n\t\t\t<div id=\"pk-collapse-6a56a245deaf3\" class=\"pk-collapse\" style=\"display:none;\" role=\"tabpanel\" aria-labelledby=\"card-6a56a245deaf3\">\n\t\t\t\t<div class=\"pk-card-body\">\n\t\t\t\t\t\n\u062a\u0631\u06a9\u06cc\u0628 \u0641\u0627\u06cc\u0631\u0648\u0627\u0644 \u0633\u0631\u0648\u0631 (nftables) \u0628\u0627 \u06cc\u06a9 \u0633\u0631\u0648\u06cc\u0633 \u0634\u0628\u06a9\u0647\u200c\u0627\u06cc \u0636\u062f DDoS \u0628\u0647\u062a\u0631\u06cc\u0646 \u0646\u062a\u06cc\u062c\u0647 \u0631\u0627 \u0645\u06cc\u200c\u062f\u0647\u062f \u062a\u0627 \u062a\u0631\u0627\u0641\u06cc\u06a9 \u0645\u062e\u0631\u0628 \u062f\u0631 \u0644\u0628\u0647 \u0634\u0628\u06a9\u0647 \u0641\u06cc\u0644\u062a\u0631 \u0634\u0648\u062f.<br \/>\n\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t\n<div class=\"pk-collapsible pk-card \">\n\t\t\t<div class=\"pk-card-header\" role=\"tab\" id=\"card-6a56a245deb16\">\n\t\t\t\t<h6 class=\"pk-card-title pk-title\">\n\t\t\t\t\t<a data-toggle=\"collapse\" class=\"pk-font-heading\" href=\"#pk-collapse-6a56a245deb16\" data-parent=\"#pk-collapsibles-6a56a245deb41\" aria-controls=\"collapse-6a56a245deb16\">\n\t\t\t\t\t\t\u06f5. \u0622\u06cc\u0627 nftables \u0627\u0632 IPv6 \u067e\u0634\u062a\u06cc\u0628\u0627\u0646\u06cc \u0645\u06cc\u200c\u06a9\u0646\u062f\u061f\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/h6>\n\t\t\t<\/div>\n\n\t\t\t<div id=\"pk-collapse-6a56a245deb16\" class=\"pk-collapse\" style=\"display:none;\" role=\"tabpanel\" aria-labelledby=\"card-6a56a245deb16\">\n\t\t\t\t<div class=\"pk-card-body\">\n\t\t\t\t\t\n\u0628\u0644\u0647\u061b \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 family <em>inet<\/em> \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u062f \u0628\u0647\u200c\u0635\u0648\u0631\u062a \u0647\u0645\u200c\u0632\u0645\u0627\u0646 \u0627\u0632 IPv4 \u0648 IPv6 \u067e\u0634\u062a\u06cc\u0628\u0627\u0646\u06cc \u06a9\u0646\u06cc\u062f.<br \/>\n\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t\n<\/div>\n\t\t\n<p><script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"\u0686\u06af\u0648\u0646\u0647 \u0627\u0632 \u0642\u0641\u0644 \u0634\u062f\u0646 SSH \u0647\u0646\u06af\u0627\u0645 \u0627\u0639\u0645\u0627\u0644 \u0642\u0648\u0627\u0646\u06cc\u0646 \u062c\u0644\u0648\u06af\u06cc\u0631\u06cc \u06a9\u0646\u0645\u061f\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"\u0642\u0628\u0644 \u0627\u0632 \u0627\u0639\u0645\u0627\u0644 \u062a\u063a\u06cc\u06cc\u0631\u0627\u062a \u06cc\u06a9 rule accept \u0645\u0648\u0642\u062a \u0628\u0631\u0627\u06cc IP \u0645\u062f\u06cc\u0631\u06cc\u062a\u06cc \u062e\u0648\u062f \u0627\u0636\u0627\u0641\u0647 \u06a9\u0646\u06cc\u062f \u06cc\u0627 \u0627\u0632 \u06a9\u0646\u0633\u0648\u0644 \u0645\u0633\u062a\u0642\u06cc\u0645 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f. \u0647\u0645\u0686\u0646\u06cc\u0646 \u0627\u0632 \u0628\u0627\u0631\u06af\u0630\u0627\u0631\u06cc \u0627\u062a\u0645\u06cc\u06a9 \u0648 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a rollback \u062e\u0648\u062f\u06a9\u0627\u0631 \u0628\u0647\u0631\u0647 \u0628\u0628\u0631\u06cc\u062f.\"}},{\"@type\":\"Question\",\"name\":\"nftables \u0628\u0647\u062a\u0631 \u0627\u0633\u062a \u06cc\u0627 iptables\u061f\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"nftables \u0646\u0633\u0644 \u062c\u062f\u06cc\u062f \u0627\u0633\u062a: \u067e\u0634\u062a\u06cc\u0628\u0627\u0646\u06cc \u0647\u0645\u200c\u0632\u0645\u0627\u0646 IPv4\/IPv6 \u0628\u0627 family inet\u060c performance \u0628\u0647\u062a\u0631 \u0648 atomic replace \u0627\u0632 \u0645\u0632\u0627\u06cc\u0627\u06cc \u0627\u0635\u0644\u06cc \u0622\u0646 \u0627\u0633\u062a.\"}},{\"@type\":\"Question\",\"name\":\"\u0686\u06af\u0648\u0646\u0647 \u06cc\u06a9 IP \u0631\u0627 \u0645\u0648\u0642\u062a\u0627\u064b \u0628\u0644\u0627\u06a9 \u06a9\u0646\u0645\u061f\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"\u06cc\u06a9 set \u0628\u0627 flag timeout \u0628\u0633\u0627\u0632\u06cc\u062f \u0648 \u0622\u06cc\u200c\u067e\u06cc \u0631\u0627 \u0628\u0627 \u0645\u0634\u062e\u0635 \u06a9\u0631\u062f\u0646 timeout \u0627\u0636\u0627\u0641\u0647 \u06a9\u0646\u06cc\u062f\u060c \u0645\u062b\u0644\u0627\u064b: nft add element inet filter allowed_ssh { 203.0.113.5 timeout 1h }.\"}},{\"@type\":\"Question\",\"name\":\"\u0628\u0647\u062a\u0631\u06cc\u0646 \u0631\u0648\u06cc\u06a9\u0631\u062f \u0628\u0631\u0627\u06cc \u0645\u0642\u0627\u0628\u0644\u0647 \u0628\u0627 \u062d\u0645\u0644\u0627\u062a DDoS \u0686\u06cc\u0633\u062a\u061f\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"\u062a\u0631\u06a9\u06cc\u0628 \u0641\u0627\u06cc\u0631\u0648\u0627\u0644 \u0633\u0631\u0648\u0631 (nftables) \u0628\u0627 \u06cc\u06a9 \u0633\u0631\u0648\u06cc\u0633 \u0634\u0628\u06a9\u0647\u200c\u0627\u06cc \u0636\u062f DDoS \u0628\u0647\u062a\u0631\u06cc\u0646 \u0646\u062a\u06cc\u062c\u0647 \u0631\u0627 \u0645\u06cc\u200c\u062f\u0647\u062f \u062a\u0627 \u062a\u0631\u0627\u0641\u06cc\u06a9 \u0645\u062e\u0631\u0628 \u062f\u0631 \u0644\u0628\u0647 \u0634\u0628\u06a9\u0647 \u0641\u06cc\u0644\u062a\u0631 \u0634\u0648\u062f.\"}},{\"@type\":\"Question\",\"name\":\"\u0622\u06cc\u0627 nftables \u0627\u0632 IPv6 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\/>\n<meta property=\"og:site_name\" content=\"\u0628\u0644\u0627\u06af ITPiran\" \/>\n<meta property=\"article:published_time\" content=\"2026-07-13T12:18:51+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/cdn.itpiran.net\/2026\/07\/13154838\/managing-firewall-nftables-35006.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"1536\" \/>\n\t<meta property=\"og:image:height\" content=\"949\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"author\" content=\"Elahe\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:description\" content=\"\u0641\u0627\u06cc\u0631\u0648\u0627\u0644 \u0648\u06cc\u200c\u067e\u06cc\u200c\u0627\u0633 \u062e\u0648\u062f \u0631\u0627 \u0628\u0627 nftables \u0627\u06cc\u0645\u0646 \u06a9\u0646\u06cc\u062f. \u062f\u0631 \u0627\u06cc\u0646 \u0631\u0627\u0647\u0646\u0645\u0627\u060c \u0627\u0635\u0648\u0644 \u0627\u0648\u0644\u06cc\u0647 \u0648 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