{"id":276,"date":"2020-03-01T21:10:45","date_gmt":"2020-03-01T13:10:45","guid":{"rendered":"http:\/\/118.25.47.203\/?p=276"},"modified":"2026-07-09T11:05:24","modified_gmt":"2026-07-09T03:05:24","slug":"ru","status":"publish","type":"post","link":"https:\/\/blog.ywdevops.cn\/index.php\/2020\/03\/01\/ru\/","title":{"rendered":"linux\u9632\u706b\u5899iptables\u4e0efirewalld"},"content":{"rendered":"\n<p class=\"has-normal-font-size wp-block-paragraph\">iptables \u4e0e firewalld \u90fd\u4e0d\u662f\u771f\u6b63\u7684\u9632\u706b\u5899\uff0c \u5b83\u4eec\u90fd\u53ea\u662f\u7528\u6765\u5b9a\u4e49\u9632\u706b\u5899\u7b56\u7565\u7684\u9632\u706b\u5899\u7ba1\u7406\u5de5\u5177\uff0c\u6216\u8005\u8bf4\uff0c\u5b83\u4eec\u53ea\u662f\u4e00\u79cd\u670d\u52a1\u3002<\/p>\n\n\n\n<p class=\"has-normal-font-size wp-block-paragraph\">iptables \u670d\u52a1\u4f1a\u628a\u914d\u7f6e\u597d\u7684\u9632\u706b\u5899\u7b56\u7565\u4ea4\u7531\u5185\u6838\u5c42\u9762\u7684 <strong>netfilter<\/strong> \u7f51\u7edc\u8fc7\u6ee4\u5668\u6765\u5904\u7406\uff0c\u800c firewalld \u670d\u52a1 \u5219\u662f\u628a\u914d\u7f6e\u597d\u7684\u9632\u706b\u5899\u7b56\u7565\u4ea4\u7531\u5185\u6838\u5c42\u9762\u7684 <strong>nftables<\/strong> \u5305\u8fc7\u6ee4\u6846\u67b6\u6765\u5904\u7406\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e00\u822c\u800c\u8a00\uff0c\u9632\u706b\u5899\u7b56\u7565\u89c4\u5219\u7684\u8bbe\u7f6e\u6709\u4e24\u79cd\uff1a\u4e00\u79cd\u662f\u653e\u884c\uff0c \u4e00\u79cd\u662f\u963b\u6b62\u3002\u5f53\u9632\u706b\u5899\u7684\u9ed8\u8ba4\u7b56\u7565\u4e3a\u62d2\u7edd\u65f6\uff0c\u5c31\u8981\u8bbe\u7f6e\u5141\u8bb8\u89c4\u5219\uff0c\u5426\u5219\u8c01\u90fd\u8fdb\u4e0d\u6765\uff1b\u5982\u679c\u9632\u706b\u5899\u7684\u9ed8\u8ba4\u7b56\u7565\u4e3a\u5141\u8bb8\u65f6\uff0c\u5c31\u8981\u8bbe\u7f6e\u62d2\u7edd\u89c4\u5219\uff0c\u5426\u5219\u8c01\u90fd\u80fd\u8fdb\u6765\uff0c\u9632\u706b\u5899\u4e5f\u5c31\u5931\u53bb\u4e86\u9632\u8303\u7684\u4f5c\u7528\u3002 <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">iptables \u670d\u52a1\u628a\u7528\u4e8e\u5904\u7406\u6216\u8fc7\u6ee4\u6d41\u91cf\u7684\u7b56\u7565\u6761\u76ee\u79f0\u4e4b\u4e3a\u89c4\u5219\uff0c\u591a\u6761\u89c4\u5219\u53ef\u4ee5\u7ec4\u6210\u4e00\u4e2a\u89c4\u5219 \u94fe\uff0c\u800c\u89c4\u5219\u94fe\u5219\u4f9d\u636e\u6570\u636e\u5305\u5904\u7406\u4f4d\u7f6e\u7684\u4e0d\u540c\u8fdb\u884c\u5206\u7c7b\uff0c\u5177\u4f53\u5982\u4e0b\uff1a <\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong> \u5728\u8fdb\u884c\u8def\u7531\u9009\u62e9\u524d\u5904\u7406\u6570\u636e\u5305 (PREROUTING)<\/strong><\/li>\n\n\n\n<li><strong> \u5904\u7406\u6d41\u5165\u7684\u6570\u636e\u5305 (INPUT) <\/strong><\/li>\n\n\n\n<li><strong> \u5904\u7406\u6d41\u51fa\u7684\u6570\u636e\u5305\uff08OUTPUT)<\/strong><\/li>\n\n\n\n<li><strong> \u5904\u7406\u8f6c\u53d1\u7684\u6570\u636e\u5305\uff08FORWARD)<\/strong><\/li>\n\n\n\n<li><strong> \u5728\u8fdb\u884c\u8def\u7531\u9009\u62e9\u540e\u5904\u7406\u6570\u636e\u5305\uff08POSTROUTING )<\/strong><\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ece\u5185\u7f51\u5411\u5916\u7f51\u53d1\u9001\u7684\u6d41\u91cf\u4e00\u822c\u90fd\u662f\u53ef\u63a7\u4e14\u826f\u6027\u7684\uff0c\u56e0\u6b64\u6211\u4eec\u4f7f\u7528\u6700\u591a\u7684\u5c31\u662f INPUT \u89c4\u5219\u94fe\uff0c\u8be5\u89c4\u5219\u94fe\u53ef\u4ee5\u589e\u5927\u9ed1\u5ba2\u4eba\u5458\u4ece\u5916\u7f51\u5165\u4fb5\u5185\u7f51\u7684\u96be\u5ea6.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">iptables \u547d\u4ee4\u53ef\u4ee5\u6839\u636e\u6d41\u91cf\u7684\u6e90\u5730\u5740\u3001\u76ee\u7684\u5730\u5740\u3001\u4f20\u8f93\u534f\u8bae\u3001\u670d\u52a1\u7c7b\u578b\u7b49\u4fe1\u606f\u8fdb\u884c\u5339\u914d\uff0c \u4e00\u65e6\u5339\u914d\u6210\u529f\uff0ciptables \u5c31\u4f1a\u6839\u636e\u7b56\u7565\u89c4\u5219\u6240\u9884\u8bbe\u7684\u52a8\u4f5c\u6765\u5904\u7406\u8fd9\u4e9b\u6d41\u91cf\u3002  <strong>\u9632\u706b\u5899\u7b56\u7565\u89c4\u5219\u7684\u5339\u914d\u987a\u5e8f\u662f\u4ece\u4e0a\u81f3\u4e0b\u7684\uff0c\u56e0\u6b64\u8981\u628a\u8f83\u4e3a\u4e25\u683c\u3001\u4f18\u5148\u7ea7\u8f83\u9ad8\u7684\u7b56\u7565\u89c4\u5219 \u653e\u5230\u524d\u9762\uff0c\u4ee5\u514d\u53d1\u751f\u9519\u8bef<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u901a\u8fc7<strong>iptables -L<\/strong>  \u67e5\u770b\u5df2\u6709\u7684\u9632\u706b\u5899\u89c4\u5219\u94fe\uff0c\u5982\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"499\" height=\"242\" src=\"http:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/03\/1-2.png\" alt=\"\" class=\"wp-image-757\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/03\/1-2.png 499w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/03\/1-2-300x145.png 300w\" sizes=\"auto, (max-width: 499px) 100vw, 499px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u901a\u8fc7<strong>iptables -F<\/strong>\u6e05\u7a7a\u5df2\u6709\u89c4\u5219\u94fe\uff0c\u7136\u540e\u518d\u6b21\u4f7f\u7528<strong>iptables<\/strong> -L \u67e5\u770b\uff0c\u5982\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"505\" height=\"234\" src=\"http:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/03\/2-3.png\" alt=\"\" class=\"wp-image-758\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/03\/2-3.png 505w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/03\/2-3-300x139.png 300w\" sizes=\"auto, (max-width: 505px) 100vw, 505px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">  \u53ea\u5141\u8bb8\u6307\u5b9a\u7f51\u6bb5\u7684\u4e3b\u673a\u8bbf\u95ee\u672c\u673a\u7684 22 \u7aef\u53e3 ,\u5176\u4f59\u5168\u90e8\u62d2\u7edd\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">iptables -I INPUT -s 10.88.5.0\/24 -p tcp &#8211;dport 22 -j ACCEPT<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"520\" height=\"218\" src=\"http:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/03\/6-4.png\" alt=\"\" class=\"wp-image-766\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/03\/6-4.png 520w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/03\/6-4-300x126.png 300w\" sizes=\"auto, (max-width: 520px) 100vw, 520px\" \/><\/figure>\n\n\n\n<p class=\"has-very-light-gray-background-color has-background wp-block-paragraph\">\u9632\u706b\u5899\u7b56\u7565\u89c4\u5219\u662f\u6309\u7167\u4ece\u4e0a\u5230\u4e0b\u7684\u987a\u5e8f\u5339\u914d\u7684\uff0c\u56e0\u6b64\u4e00\u5b9a\u8981\u628a\u5141\u8bb8\u52a8\u4f5c\u653e\u5230 \u62d2\u7edd\u52a8\u4f5c\u524d\u9762\uff0c\u5426\u5219\u6240\u6709\u7684\u6d41\u91cf\u5c31\u5c06\u88ab\u62d2\u7edd\u6389\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"> \u5411 INPUT \u89c4\u5219\u94fe\u4e2d\u6dfb\u52a0\u62d2\u7edd\u6240\u6709\u4eba\u8bbf\u95ee\u672c\u673a 8888 \u7aef\u53e3\u7684\u7b56\u7565\u89c4\u5219\uff1a <\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li> iptables -I INPUT -p tcp &#8211;dport 8888 -j REJECT       \/\/TCP<\/li>\n\n\n\n<li> iptables -I INPUT -p udp &#8211;dport 8888 -j REJECT      \/\/UDP<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"509\" height=\"160\" src=\"http:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/03\/7-4.png\" alt=\"\" class=\"wp-image-768\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/03\/7-4.png 509w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/03\/7-4-300x94.png 300w\" sizes=\"auto, (max-width: 509px) 100vw, 509px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"> \u6dfb\u52a0\u62d2\u7edd 192.168.10.5 \u4e3b\u673a\u8bbf\u95ee\u672c\u673a 80 \u7aef\u53e3\u7684\u7b56\u7565 \u89c4\u5219\uff1a <\/p>\n\n\n\n<p class=\"wp-block-paragraph\"> iptables -I INPUT -p tcp -s 192.168.10.5 &#8211;dport 80 -j REJECT <\/p>\n\n\n\n<p class=\"wp-block-paragraph\"> \u5411 INPUT \u89c4\u5219\u94fe\u4e2d\u6dfb\u52a0\u62d2\u7edd\u6240\u6709\u4e3b\u673a\u8bbf\u95ee\u672c\u673a 1000\uff5e1024 \u7aef\u53e3\u7684\u7b56\u7565\u89c4\u5219\uff1a <\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li> iptables -A INPUT -p tcp &#8211;dport 1000:1024 -j REJECT <\/li>\n\n\n\n<li> iptables -A INPUT -p udp &#8211;dport 1000:1024 -j REJECT <\/li>\n<\/ol>\n\n\n\n<p class=\"has-very-light-gray-background-color has-background wp-block-paragraph\"> \u6ce8\u610f\uff1a\u4f7f\u7528 iptables \u547d\u4ee4\u914d\u7f6e\u7684\u9632\u706b\u5899\u89c4\u5219\u9ed8\u8ba4\u4f1a\u5728\u7cfb\u7edf\u4e0b\u4e00\u6b21\u91cd\u542f\u65f6\u5931\u6548\uff0c\u5982\u679c \u60f3\u8ba9\u914d\u7f6e\u7684\u9632\u706b\u5899\u7b56\u7565\u6c38\u4e45\u751f\u6548\uff0c\u8fd8\u8981\u6267\u884c\u4fdd\u5b58\u547d\u4ee4\uff1a  service iptables save   <\/p>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\"><strong>iptables\u5e38\u7528\u53c2\u6570\u8bf4\u660e\uff1a<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li> -P  \uff1a \u8bbe\u7f6e\u9ed8\u8ba4\u7b56\u7565<\/li>\n\n\n\n<li> -F  \uff1a \u6e05\u7a7a\u89c4\u5219\u94fe <\/li>\n\n\n\n<li> -L  \uff1a \u67e5\u770b\u89c4\u5219\u94fe <\/li>\n\n\n\n<li> -A  \uff1a \u5728\u89c4\u5219\u94fe\u7684\u672b\u5c3e\u52a0\u5165\u65b0\u89c4\u5219 <\/li>\n\n\n\n<li> -I num  \uff1a\u5728\u89c4\u5219\u94fe\u7684\u5934\u90e8\u52a0\u5165\u65b0\u89c4\u5219(<strong>num\u6307\u7684\u662fINPUT\u6216\u8005OUTPUT\u7b49<\/strong>)<\/li>\n\n\n\n<li> -D num  \uff1a \u5220\u9664\u67d0\u4e00\u6761\u89c4\u5219 <\/li>\n\n\n\n<li> -s  \uff1a \u5339\u914d\u6765\u6e90\u5730\u5740 IP\/MASK\uff0c\u52a0\u53f9\u53f7\u201c!\u201d\u8868\u793a\u9664\u8fd9\u4e2a IP \u5916 <\/li>\n\n\n\n<li> -d  \uff1a \u5339\u914d\u76ee\u6807\u5730\u5740 <\/li>\n\n\n\n<li> -i \u7f51\u5361\u540d\u79f0 \uff1a \u5339\u914d\u4ece\u8fd9\u5757\u7f51\u5361\u6d41\u5165\u7684\u6570\u636e <\/li>\n\n\n\n<li> -o \u7f51\u5361\u540d\u79f0 \uff1a \u5339\u914d\u4ece\u8fd9\u5757\u7f51\u5361\u6d41\u51fa\u7684\u6570\u636e <\/li>\n\n\n\n<li> -p  \uff1a \u5339\u914d\u534f\u8bae\uff0c\u5982 TCP\u3001UDP\u3001ICMP <\/li>\n\n\n\n<li> &#8211;dport num \uff1a \u5339\u914d\u76ee\u6807\u7aef\u53e3\u53f7 <\/li>\n\n\n\n<li> &#8211;sport num \uff1a \u5339\u914d\u6765\u6e90\u7aef\u53e3\u53f7<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e3b\u52a8\u8ba9Linux\u673a\u5668\u4e0d\u80fd\u4e0a\u5916\u7f51\uff0c\u4f46\u662f\u672c\u5730\u5185\u7f51\u673a\u5668\u4e4b\u95f4\u53c8\u53ef\u4ee5\u901a\u4fe1\u7684\u529e\u6cd5\uff0c\u5c31\u662f\u901a\u8fc7iptables\uff0c\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># 1. \u5141\u8bb8\u5185\u7f51\u901a\u4fe1\uff08INPUT \u548c OUTPUT \u94fe\u90fd\u5141\u8bb8\uff09\nsudo iptables -A OUTPUT -d 192.168.1.0\/24 -j ACCEPT\nsudo iptables -A INPUT -s 192.168.1.0\/24 -j ACCEPT\n\n# 2. \u7981\u6b62\u6240\u6709\u5176\u4ed6\u51fa\u7ad9\u6d41\u91cf\uff08\u5373\u53d1\u5f80\u5916\u7f51\u7684\uff09\nsudo iptables -A OUTPUT -j DROP\n\n# 3. \u5141\u8bb8\u56de\u73af\u63a5\u53e3\uff08lo\uff09\u901a\u4fe1\uff0c\u786e\u4fdd\u672c\u5730\u670d\u52a1\u6b63\u5e38\nsudo iptables -I OUTPUT -o lo -j ACCEPT<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u6ce8\uff1a\u5982\u679c\u8981\u6062\u590d\u53ef\u4ee5\u76f4\u63a5\u5c06\u7b2c2\u6761\u6539\u4e3aACCEPT\u5373\u53ef\u6216\u8005\u6267\u884csudo iptables -F\u6e05\u7a7a\u6240\u6709\u89c4\u5219\uff0c\u540c\u65f6\u4e5f\u4f1a\u6e05\u7a7a\u539f\u6709\u7684\u5176\u4ed6\u89c4\u5219\uff0c\u8c28\u614e\u6267\u884c\uff01\uff01\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>iptables \u4e0e firewalld \u90fd\u4e0d\u662f\u771f\u6b63\u7684\u9632\u706b\u5899\uff0c \u5b83\u4eec\u90fd\u53ea\u662f\u7528\u6765\u5b9a\u4e49\u9632\u706b\u5899\u7b56\u7565\u7684\u9632\u706b\u5899\u7ba1\u7406\u5de5\u5177\uff0c [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":764,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[34,22],"tags":[65,64],"class_list":["post-276","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-linux","category-server","tag-firewalld","tag-iptables"],"blocksy_meta":{"styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":8}},"_links":{"self":[{"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/posts\/276","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/comments?post=276"}],"version-history":[{"count":15,"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/posts\/276\/revisions"}],"predecessor-version":[{"id":20565,"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/posts\/276\/revisions\/20565"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/media\/764"}],"wp:attachment":[{"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/media?parent=276"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/categories?post=276"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/tags?post=276"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}