{"id":6588,"date":"2020-02-14T14:24:30","date_gmt":"2020-02-14T06:24:30","guid":{"rendered":"https:\/\/www.linuxcool.com\/?p=6588"},"modified":"2022-05-24T12:47:17","modified_gmt":"2022-05-24T04:47:17","slug":"iptables","status":"publish","type":"post","link":"https:\/\/www.linuxcool.com\/iptables","title":{"rendered":"iptables\u547d\u4ee4 &#8211; \u9632\u706b\u5899\u7b56\u7565\u7ba1\u7406\u5de5\u5177"},"content":{"rendered":"\n<p>iptables\u662f\u4e00\u4e2a\u9632\u706b\u5899\u7b56\u7565\u7ba1\u7406\u5de5\u5177\u7684\u547d\u4ee4\uff0c\u540c\u65f6\u4e5f\u662f\u4e00\u4e2a\u57fa\u4e8e\u5185\u6838\u7ea7\u522b\u7684\u9632\u706b\u5899\u670d\u52a1\uff0c\u7528\u6237\u53ef\u4ee5\u57fa\u4e8e\u5b83\u6765\u5bf9\u6570\u636e\u5305\u8fdb\u884c\u8fc7\u6ee4\u64cd\u4f5c\uff0c\u62d2\u7edd\u6389\u5371\u9669\u7684\u5916\u90e8\u8bf7\u6c42\u6d41\u91cf\uff0c\u4fdd\u62a4\u5185\u7f51\u7684\u5b89\u5168\u3002iptables\u547d\u4ee4\u9ed8\u8ba4\u4ec5\u652f\u6301ipv4\u534f\u8bae\uff0c\u5982\u9700ipv6\u534f\u8bae\u652f\u6301\u9700\u4f7f\u7528ip6tables\u547d\u4ee4\u3002<\/p>\n\n\n\n<p><strong>\u8bed\u6cd5\u683c\u5f0f:<\/strong>   iptables [\u53c2\u6570]<\/p>\n\n\n\n<p><strong>\u5e38\u7528\u53c2\u6570\uff1a<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>-t&lt;\u8868&gt;<\/td><td>\u6307\u5b9a\u8981\u64cd\u7eb5\u7684\u8868<\/td><\/tr><tr><td>-A<\/td><td>\u5411\u89c4\u5219\u94fe\u4e2d\u8ffd\u52a0\u6761\u76ee<\/td><\/tr><tr><td>-D<\/td><td>\u4ece\u89c4\u5219\u94fe\u4e2d\u5220\u9664\u6761\u76ee<\/td><\/tr><tr><td>-I<\/td><td>\u5411\u89c4\u5219\u94fe\u4e2d\u63d2\u5165\u6761\u76ee<\/td><\/tr><tr><td>-R<\/td><td>\u66ff\u6362\u89c4\u5219\u94fe\u4e2d\u7684\u76f8\u5e94\u6761\u76ee<\/td><\/tr><tr><td>-L<\/td><td>\u663e\u793a\u89c4\u5219\u94fe\u4e2d\u7684\u5df2\u6709\u6761\u76ee<\/td><\/tr><tr><td>-F<\/td><td>\u6e05\u9664\u89c4\u5219\u94fe\u4e2d\u7684\u73b0\u6709\u6761\u76ee<\/td><\/tr><tr><td>-Z<\/td><td>\u6e05\u7a7a\u89c4\u5219\u94fe\u4e2d\u7684\u6570\u636e\u5305\u8ba1\u6570\u5668\u548c\u5b57\u8282\u8ba1\u6570\u5668<\/td><\/tr><tr><td>-N<\/td><td>\u521b\u5efa\u65b0\u7684\u7528\u6237\u81ea\u5b9a\u4e49\u89c4\u5219\u94fe<\/td><\/tr><tr><td>-P<\/td><td>\u5b9a\u4e49\u89c4\u5219\u94fe\u4e2d\u7684\u9ed8\u8ba4\u76ee\u6807\uff08\u7b56\u7565\uff09<\/td><\/tr><tr><td>-h<\/td><td>\u663e\u793a\u5e2e\u52a9\u4fe1\u606f<\/td><\/tr><tr><td>-p&lt;\u534f\u8bae&gt;<\/td><td>\u6307\u5b9a\u8981\u5339\u914d\u7684\u6570\u636e\u5305\u7684\u534f\u8bae\u7c7b\u578b<\/td><\/tr><tr><td>-s&lt;\u6e90\u5730\u5740&gt;<\/td><td>\u6307\u5b9a\u8981\u5339\u914d\u7684\u6570\u636e\u5305\u7684\u6e90IP\u5730\u5740<\/td><\/tr><tr><td>-j&lt;\u76ee\u6807&gt;<\/td><td>\u6307\u5b9a\u8981\u8df3\u8f6c\u7684\u76ee\u6807<\/td><\/tr><tr><td>-i&lt;\u7f51\u7edc\u63a5\u53e3&gt;<\/td><td>\u6307\u5b9a\u6570\u636e\u5305\u8fdb\u5165\u672c\u673a\u7684\u7f51\u7edc\u63a5\u53e3<\/td><\/tr><tr><td>-o&lt;\u7f51\u7edc\u63a5\u53e3&gt;<\/td><td>\u6307\u5b9a\u6570\u636e\u5305\u79bb\u5f00\u672c\u673a\u505a\u4f7f\u7528\u7684\u7f51\u7edc\u63a5\u53e3<\/td><\/tr><tr><td>-c&lt;\u5305\u8ba1\u6570&gt;<\/td><td>\u5728\u6267\u884c\u63d2\u5165\u3001\u8ffd\u52a0\u548c\u66ff\u6362\u64cd\u4f5c\u65f6\u521d\u59cb\u5316\u5305\u8ba1\u6570\u5668\u548c\u5b57\u8282\u8ba1\u6570\u5668<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>\u53c2\u8003\u5b9e\u4f8b<\/strong><\/p>\n\n\n\n<p>\u663e\u793a\u5f53\u524d\u9632\u706b\u5899\u7b56\u7565\u4e2d\u5168\u90e8\u7684\u8fc7\u6ee4\u8868\u4fe1\u606f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">[root@linuxcool ~]# <strong>iptables -L<\/strong><\/pre>\n\n\n\n<p>\u663e\u793a\u5f53\u524d\u9632\u706b\u5899\u7b56\u7565\u4e2d\u6307\u5b9a\u7684NAT\u8868\u4fe1\u606f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">[root@linuxcool ~]# <strong>iptables -L -t nat<\/strong><\/pre>\n\n\n\n<p>\u7981\u6b62\u6307\u5b9a\u7684\u8fdc\u7a0b\u4e3b\u673a\u8bbf\u95ee\u672c\u5730\u5168\u90e8\u7684\u670d\u52a1\uff0c\u901a\u901a\u7981\u6b62\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">[root@linuxcool ~]# <strong>iptables -I INPUT -s 192.168.10.10 -j DROP<\/strong><\/pre>\n\n\n\n<p>\u7981\u6b62\u6307\u5b9a\u7684\u8fdc\u7a0b\u4e3b\u673a\u8bbf\u95ee\u672c\u5730\u7684\u67d0\u4e2a\u7aef\u53e3\uff0c\u5176\u4f59\u5141\u8bb8\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">[root@linuxcool ~]#<strong> <\/strong><strong>iptables -I INPUT -s 192.168.10.10 -p tcp --dport 22 -j DROP<\/strong><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>iptables\u662f\u4e00\u4e2a\u9632\u706b\u5899\u7b56\u7565\u7ba1\u7406\u5de5\u5177\u7684\u547d\u4ee4\uff0c\u540c\u65f6\u4e5f\u662f\u4e00\u4e2a\u57fa\u4e8e\u5185\u6838\u7ea7\u522b\u7684\u9632\u706b\u5899\u670d\u52a1\uff0c\u7528\u6237\u53ef\u4ee5\u57fa\u4e8e\u5b83\u6765\u5bf9\u6570\u636e\u5305 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[6],"tags":[],"_links":{"self":[{"href":"https:\/\/www.linuxcool.com\/wp-json\/wp\/v2\/posts\/6588"}],"collection":[{"href":"https:\/\/www.linuxcool.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.linuxcool.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.linuxcool.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.linuxcool.com\/wp-json\/wp\/v2\/comments?post=6588"}],"version-history":[{"count":7,"href":"https:\/\/www.linuxcool.com\/wp-json\/wp\/v2\/posts\/6588\/revisions"}],"predecessor-version":[{"id":9985,"href":"https:\/\/www.linuxcool.com\/wp-json\/wp\/v2\/posts\/6588\/revisions\/9985"}],"wp:attachment":[{"href":"https:\/\/www.linuxcool.com\/wp-json\/wp\/v2\/media?parent=6588"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.linuxcool.com\/wp-json\/wp\/v2\/categories?post=6588"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.linuxcool.com\/wp-json\/wp\/v2\/tags?post=6588"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}