{"id":2547,"date":"2017-07-31T17:34:12","date_gmt":"2017-07-31T09:34:12","guid":{"rendered":"http:\/\/cn.hostease.com\/xueyuan\/?p=2547"},"modified":"2017-07-31T17:34:12","modified_gmt":"2017-07-31T09:34:12","slug":"linux%e9%98%b2%e7%81%ab%e5%a2%99iptables%e5%9f%ba%e6%9c%ac%e5%ba%94%e7%94%a8","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/xueyuan\/jishu\/linux\/linux%e9%98%b2%e7%81%ab%e5%a2%99iptables%e5%9f%ba%e6%9c%ac%e5%ba%94%e7%94%a8\/","title":{"rendered":"Linux\u9632\u706b\u5899iptables\u57fa\u672c\u5e94\u7528"},"content":{"rendered":"<p>ptables\u662f\u4e00\u4e2alinux\u7684\u57fa\u7840\u7ec4\u4ef6\uff0c\u4e3b\u8981\u5e94\u7528\u4e8e\u9632\u706b\u5899\u5e94\u7528\uff0c\u4f8b\u5982\u7981\u6b62\u67d0IP\u8bbf\u95ee\uff0c\u6216\u8005\u7981\u6b62\u4e00\u4e9b\u7aef\u53e3\uff0c\u63d0\u5347\u7f51\u7ad9\u7684\u5b89\u5168\u6027\u3002\u4e00\u822c\u60c5\u51b5\u4e0b\uff0c\u7cfb\u7edf\u9ed8\u8ba4\u5c31\u4f1a\u5b89\u88c5\uff0c\u5982\u679c\u6ca1\u6709\u5b89\u88c5\uff0c\u53ef\u81ea\u884c\u5b89\u88c5\u3002<\/p>\n<pre class=\"brush:shell;\">yum install iptables #centos\u7cfb\u7edf\r\napt-get install iptables #debian\/ubuntu\u7cfb\u7edf<\/pre>\n<p><strong>\u4e00\u3001\u5148\u8bf4\u4e00\u4e0b\u51e0\u4e2a\u5e38\u7528\u547d\u4ee4\uff1a<\/strong><\/p>\n<pre class=\"brush:shell;\">service iptables -status #\u67e5\u770biptables\u662f\u5426\u8fd0\u884c<\/pre>\n<pre class=\"brush:shell;\">iptables -F #\u5927\u5199F\uff0c\u6e05\u7a7a\u5f53\u524d\u6240\u6709\u89c4\u5219<\/pre>\n<pre class=\"brush:shell;\">iptables-save #\u6ce8\u610fs-\u4e4b\u95f4\u65e0\u7a7a\u683c\uff0c\u4fdd\u5b58\u5f53\u524d\u89c4\u5219<\/pre>\n<pre class=\"brush:shell;\">iptables -L -n #\u5217\u8868\u663e\u793a\u5f53\u524d\u89c4\u5219<\/pre>\n<p><strong>\u4e8c\u3001\u5e38\u89c1\u5c01ip\u547d\u4ee4\uff1a<\/strong><\/p>\n<pre class=\"brush:shell;\">iptables -A INPUT -s 123.45.67.89 -j DROP #\u5c01\u6389\u5355\u4e2aIP\u5730\u5740<\/pre>\n<pre class=\"brush:shell;\">#\u5c4f\u853d\u6574\u4e2a\u6bb5\uff08A\u7c7b\u5730\u5740\uff09\u5373\u4ece192.0.0.1\u5230192.255.255.254\uff0c\u5219\u6dfb\u52a0\u4ee5\u4e0b\u89c4\u5219\u3002\r\niptables -I INPUT -s 192.0.0.0\/8 -j DROP<\/pre>\n<pre class=\"brush:shell;\">#\u5c01IP\u6bb5\uff08B\u7c7b\u5730\u5740\uff09\u5373\u4ece192.168.0.1\u5230192.168.255.254\uff0c\u5219\u6dfb\u52a0\u4ee5\u4e0b\u89c4\u5219\u3002\r\niptables -I INPUT -s 192.168.0.0\/16 -j DROP<\/pre>\n<pre class=\"brush:shell;\">#\u5c01IP\u6bb5\uff08C\u7c7b\u5730\u5740\uff09\u5373\u4ece192.168.200.1\u5230192.168.200.254\uff0c\u5219\u6dfb\u52a0\u4ee5\u4e0b\u89c4\u5219\u3002\r\niptables -I INPUT -s 192.168.200.0\/24 -j DROP<\/pre>\n<p><strong>\u4e09\u3001\u67e5\u770b\u53ca\u5220\u9664\u547d\u4ee4\uff1a<\/strong><\/p>\n<pre class=\"brush:shell;\">iptables -L -n --line-numbers #\u6309\u884c\u5217\u8868\u663e\u793a\u5f53\u524d\u89c4\u5219<\/pre>\n<pre class=\"brush:shell;\">iptables -D INPUT 15 #\u5220\u9664\u7b2c15\u6761\u89c4\u5219<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>ptables\u662f\u4e00\u4e2alinux\u7684\u57fa\u7840\u7ec4\u4ef6\uff0c\u4e3b\u8981\u5e94\u7528\u4e8e\u9632\u706b\u5899\u5e94\u7528\uff0c\u4f8b\u5982\u7981\u6b62\u67d0IP\u8bbf\u95ee\uff0c\u6216\u8005\u7981\u6b62\u4e00\u4e9b\u7aef\u53e3\uff0c\u63d0\u5347\u7f51\u7ad9 &#8230; 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