{"id":43858,"date":"2024-10-06T11:02:12","date_gmt":"2024-10-06T03:02:12","guid":{"rendered":"https:\/\/server.hk\/cnblog\/43858\/"},"modified":"2024-10-06T11:02:12","modified_gmt":"2024-10-06T03:02:12","slug":"centos-7-%e4%b8%8b-iptables-%e9%85%8d%e7%bd%ae%e9%81%8e%e7%a8%8b","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/43858\/","title":{"rendered":"CentOS 7 \u4e0b iptables \u914d\u7f6e\u904e\u7a0b"},"content":{"rendered":"<h1 id=\"centos-7-%e4%b8%8b-iptables-%e9%85%8d%e7%bd%ae%e9%81%8e%e7%a8%8b-bRfzlgygvh\">CentOS 7 \u4e0b iptables \u914d\u7f6e\u904e\u7a0b<\/h1>\n<p>\u5728\u4f3a\u670d\u5668\u7ba1\u7406\u4e2d\uff0c\u9632\u706b\u7246\u662f\u4fdd\u8b77\u7cfb\u7d71\u5b89\u5168\u7684\u91cd\u8981\u7d44\u4ef6\u3002CentOS 7 \u4f7f\u7528 <code>iptables<\/code> \u4f5c\u70ba\u5176\u4e3b\u8981\u7684\u9632\u706b\u7246\u5de5\u5177\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u5728 CentOS 7 \u4e2d\u914d\u7f6e <code>iptables<\/code>\uff0c\u4ee5\u589e\u5f37\u4f3a\u670d\u5668\u7684\u5b89\u5168\u6027\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af-iptables%ef%bc%9f-bRfzlgygvh\">\u4ec0\u9ebc\u662f iptables\uff1f<\/h2>\n<p><code>iptables<\/code> \u662f Linux \u7cfb\u7d71\u4e2d\u7684\u4e00\u500b\u7528\u65bc\u8a2d\u7f6e\u3001\u7dad\u8b77\u548c\u6aa2\u67e5 IP \u5c01\u5305\u904e\u6ffe\u898f\u5247\u7684\u5de5\u5177\u3002\u5b83\u80fd\u5920\u63a7\u5236\u9032\u51fa\u4f3a\u670d\u5668\u7684\u7db2\u7d61\u6d41\u91cf\uff0c\u4e26\u6839\u64da\u7528\u6236\u5b9a\u7fa9\u7684\u898f\u5247\u4f86\u5141\u8a31\u6216\u62d2\u7d55\u7279\u5b9a\u7684\u6d41\u91cf\u3002<\/p>\n<h2 id=\"%e5%ae%89%e8%a3%9d-iptables-bRfzlgygvh\">\u5b89\u88dd iptables<\/h2>\n<p>\u5728 CentOS 7 \u4e2d\uff0c<code>iptables<\/code> \u901a\u5e38\u9810\u88dd\u5728\u7cfb\u7d71\u4e2d\u3002\u5982\u679c\u9700\u8981\u5b89\u88dd\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>sudo yum install iptables-services<\/code><\/pre>\n<h2 id=\"%e6%aa%a2%e6%9f%a5-iptables-%e7%8b%80%e6%85%8b-bRfzlgygvh\">\u6aa2\u67e5 iptables \u72c0\u614b<\/h2>\n<p>\u5728\u914d\u7f6e\u4e4b\u524d\uff0c\u9996\u5148\u6aa2\u67e5 <code>iptables<\/code> \u7684\u7576\u524d\u72c0\u614b\uff1a<\/p>\n<pre><code>sudo systemctl status iptables<\/code><\/pre>\n<p>\u5982\u679c\u670d\u52d9\u672a\u555f\u52d5\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u555f\u52d5\uff1a<\/p>\n<pre><code>sudo systemctl start iptables<\/code><\/pre>\n<h2 id=\"%e5%9f%ba%e6%9c%ac%e9%85%8d%e7%bd%ae-bRfzlgygvh\">\u57fa\u672c\u914d\u7f6e<\/h2>\n<p>\u5728\u914d\u7f6e <code>iptables<\/code> \u4e4b\u524d\uff0c\u5efa\u8b70\u5148\u5099\u4efd\u7576\u524d\u7684\u898f\u5247\uff1a<\/p>\n<pre><code>sudo iptables-save &gt; \/etc\/iptables\/rules.v4<\/code><\/pre>\n<p>\u63a5\u4e0b\u4f86\uff0c\u6211\u5011\u53ef\u4ee5\u958b\u59cb\u6dfb\u52a0\u898f\u5247\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u914d\u7f6e\u793a\u4f8b\uff1a<\/p>\n<h3 id=\"%e5%85%81%e8%a8%b1-ssh-%e9%80%a3%e6%8e%a5-bRfzlgygvh\">\u5141\u8a31 SSH \u9023\u63a5<\/h3>\n<p>\u70ba\u4e86\u5141\u8a31 SSH \u9023\u63a5\uff0c\u60a8\u53ef\u4ee5\u6dfb\u52a0\u4ee5\u4e0b\u898f\u5247\uff1a<\/p>\n<pre><code>sudo iptables -A INPUT -p tcp --dport 22 -j ACCEPT<\/code><\/pre>\n<h3 id=\"%e5%85%81%e8%a8%b1-http-%e5%92%8c-https-%e9%80%a3%e6%8e%a5-bRfzlgygvh\">\u5141\u8a31 HTTP \u548c HTTPS \u9023\u63a5<\/h3>\n<p>\u5982\u679c\u60a8\u7684\u4f3a\u670d\u5668\u9700\u8981\u63d0\u4f9b\u7db2\u7ad9\u670d\u52d9\uff0c\u5247\u9700\u8981\u5141\u8a31 HTTP \u548c HTTPS \u9023\u63a5\uff1a<\/p>\n<pre><code>sudo iptables -A INPUT -p tcp --dport 80 -j ACCEPT\nsudo iptables -A INPUT -p tcp --dport 443 -j ACCEPT<\/code><\/pre>\n<h3 id=\"%e6%8b%92%e7%b5%95%e6%89%80%e6%9c%89%e5%85%b6%e4%bb%96%e9%80%a3%e6%8e%a5-bRfzlgygvh\">\u62d2\u7d55\u6240\u6709\u5176\u4ed6\u9023\u63a5<\/h3>\n<p>\u70ba\u4e86\u589e\u5f37\u5b89\u5168\u6027\uff0c\u5efa\u8b70\u5728\u5141\u8a31\u7279\u5b9a\u7aef\u53e3\u5f8c\uff0c\u62d2\u7d55\u6240\u6709\u5176\u4ed6\u9023\u63a5\uff1a<\/p>\n<pre><code>sudo iptables -A INPUT -j DROP<\/code><\/pre>\n<h2 id=\"%e4%bf%9d%e5%ad%98%e5%92%8c%e6%87%89%e7%94%a8%e8%a6%8f%e5%89%87-bRfzlgygvh\">\u4fdd\u5b58\u548c\u61c9\u7528\u898f\u5247<\/h2>\n<p>\u5b8c\u6210\u898f\u5247\u914d\u7f6e\u5f8c\uff0c\u60a8\u9700\u8981\u4fdd\u5b58\u9019\u4e9b\u898f\u5247\uff0c\u4ee5\u4fbf\u5728\u7cfb\u7d71\u91cd\u555f\u5f8c\u4ecd\u7136\u6709\u6548\uff1a<\/p>\n<pre><code>sudo service iptables save<\/code><\/pre>\n<p>\u7136\u5f8c\uff0c\u91cd\u555f <code>iptables<\/code> \u670d\u52d9\u4ee5\u61c9\u7528\u66f4\u6539\uff1a<\/p>\n<pre><code>sudo systemctl restart iptables<\/code><\/pre>\n<h2 id=\"%e6%aa%a2%e6%9f%a5%e8%a6%8f%e5%89%87-bRfzlgygvh\">\u6aa2\u67e5\u898f\u5247<\/h2>\n<p>\u8981\u6aa2\u67e5\u7576\u524d\u7684 <code>iptables<\/code> \u898f\u5247\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>sudo iptables -L -n -v<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-bRfzlgygvh\">\u7e3d\u7d50<\/h2>\n<p>\u5728 CentOS 7 \u4e2d\u914d\u7f6e <code>iptables<\/code> \u662f\u4e00\u500b\u91cd\u8981\u7684\u6b65\u9a5f\uff0c\u4ee5\u78ba\u4fdd\u4f3a\u670d\u5668\u7684\u5b89\u5168\u6027\u3002\u901a\u904e\u6b63\u78ba\u7684\u898f\u5247\u8a2d\u7f6e\uff0c\u60a8\u53ef\u4ee5\u6709\u6548\u5730\u63a7\u5236\u9032\u51fa\u4f3a\u670d\u5668\u7684\u6d41\u91cf\uff0c\u4fdd\u8b77\u60a8\u7684\u6578\u64da\u548c\u61c9\u7528\u7a0b\u5e8f\u3002\u82e5\u60a8\u9700\u8981\u66f4\u9ad8\u6548\u7684\u4f3a\u670d\u5668\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u670d\u52d9\uff0c\u9019\u5c07\u70ba\u60a8\u7684\u696d\u52d9\u63d0\u4f9b\u7a69\u5b9a\u548c\u5b89\u5168\u7684\u74b0\u5883\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3 CentOS 7 \u4e2d iptables \u7684\u914d\u7f6e\u904e\u7a0b\uff0c\u5b78\u7fd2\u5982\u4f55\u8a2d\u7f6e\u9632\u706b\u7246\u4ee5\u589e\u5f37\u7cfb\u7d71\u5b89\u5168\u6027\u548c\u6d41\u91cf\u7ba1\u7406\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4924],"tags":[],"class_list":["post-43858","post","type-post","status-publish","format-standard","hentry","category-setup-tutorials"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/43858","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=43858"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/43858\/revisions"}],"predecessor-version":[{"id":43859,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/43858\/revisions\/43859"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=43858"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=43858"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=43858"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}