{"id":149,"date":"2016-04-13T09:00:27","date_gmt":"2016-04-13T01:00:27","guid":{"rendered":"http:\/\/www.shenmdyw.com\/?p=149"},"modified":"2016-11-07T14:28:39","modified_gmt":"2016-11-07T06:28:39","slug":"linux-csf","status":"publish","type":"post","link":"http:\/\/www.shenmdyw.com\/index.php\/2016\/04\/13\/linux-csf\/","title":{"rendered":"linux csf \u9632\u706b\u5899 \u9632\u6b62\u5c11\u91cf\u7684ddos cc\u653b\u51fb\u5f88\u6709\u6548"},"content":{"rendered":"

httpd\u8bf7\u6c42\u6570\u8fc7\u591a\uff0capache\u8fde\u63a5\u6570\u4e0d\u591f\uff0c\u52a0\u5927\u8fde\u63a5\u6570\u7684\u505a\u6cd5\uff0c\u5728\u53d7ddos,cc\u653b\u51fb\u7684\u60c5\u51b5\u4e0b\uff0c\u6700\u7ec8\u7684\u7ed3\u679c\u5c31\u662f\u7cfb\u7edf\u8d44\u6e90\u8017\u5c3d\uff0c\u5bfc\u81f4\u6b7b\u673a\u3002<\/p>\n

\u6d4b\u8bd5\u670d\u52a1\u5668\uff0c\u4e5f\u6ca1\u6709\u60f3\u5230\u4f1a\u53d7\u5230\u653b\u51fb\uff0c\u4ec0\u4e48\u9632\u8303\u63aa\u65bd\u4e5f\u6ca1\u6709\u505a\u3002\u88c5\u4e86csf\u7684\u9632\u706b\u5899\uff0c\u5728\u5e94\u5bf9\u5c11\u91cfddos,cc\u653b\u51fb\u7684\uff0c\u8fd8\u662f\u633a\u7ba1\u7528\u7684\uff0c\u4ee5\u524d\u4e5f\u7528\u8fc7apf\u4e5f\u633a\u4e0d\u9519\uff0c\u8bf7\u53c2\u8003 linux apf \u9632\u706b\u5899 \u5b89\u88c5 \u914d\u7f6e<\/a><\/strong>\u3002\u4e0b\u9762\u8bb0\u5f55\u4e00\u4e0b\uff0c\u6211\u662f\u600e\u4e48\u53d1\u73b0\u653b\u51fb\uff0c\u5e76\u4e14\u662f\u600e\u4e48\u89e3\u51b3\u7684\u3002<\/p>\n

1\uff0c\u8c03\u6574apache\u7684\u8fde\u63a5\uff0c\u603b\u662f\u4f1a\u88ab\u5360\u6ee1\uff0c\u7cfb\u7edf\u8d44\u6e90\u6d88\u8017\u7684\u5f88\u5389\u5bb3\uff0c\u6d4b\u8bd5\u670d\u52a1\u5668\uff0c\u6ca1\u6709\u88c5\u76d1\u63a7\uff0cnagios,cacti,munin\uff0c\u6211\u7684\u535a\u5ba2\u91cc\u9762\u90fd\u6709\u3002\u53ef\u4ee5\u81ea\u5df1\u641c\u7d22\u4e00\u4e0b\u3002<\/p>\n

2\uff0c\u67e5\u770b\u4e86\u4e00\u4e0bapache\u7684\u65e5\u5fd7\uff0c\u53d1\u73b0\u67d0\u4e00\u4e2aIP\uff0c\u8bf7\u6c42\u67d0\u4e00\u4e2aphp\uff0c\u4e8c\u5929\u5185\u8fbe\u52309\u4e07\u591a\uff0capache\u7684log\u505a\u4e86\u6eda\u52a8\u7684\uff0c\u6240\u4ee5\u8bf4\u6b63\u5e38\u60c5\u51b5\u4e0b\uff0c\u4e0d\u53ef\u80fd\u6709\u8fd9\u4e48\u591a\uff0c\u5e76\u4e14\u8fd9\u662f\u6d4b\u8bd5\u670d\u52a1\u5668\u3002\u770b\u4e0b\u56fe\u3002<\/p>\n

\n

\"ddos\"<\/a><\/p>\n

ddos \u653b\u51fb<\/p>\n<\/div>\n

\u4e0b\u9762\u8bf4\u4e00\u4e0b\u5b89\u88c5\u914d\u7f6e\u8fc7\u7a0b<\/p>\n

<\/p>\n

\u4e00\uff0c\u4e0b\u8f7d\u5b89\u88c5<\/strong><\/p>\n

\n
wget http:\/\/www.configserver.com\/free\/csf.tgz  \r\ntar -zxvf csf.tgz  \r\ncd csf  \r\nsh install.sh<\/pre>\n<\/div>\n
\u5982\u679c\u62a5perl\u6a21\u5757\u9519\u8bef\uff0c<\/p>\n
yum\u00a0install\u00a0perl-libwww-perl\u00a0perl<\/pre>\n
 <\/p>\n
\u6d4b\u8bd5\u4e00\u4e0bcsf<\/p>\n
[root@rudder\u00a0csf]#\u00a0perl\u00a0\/etc\/csf\/csftest.pl\r\nTesting\u00a0ip_tables\/iptable_filter...OK\r\nTesting\u00a0ipt_LOG...OK\r\nTesting\u00a0ipt_multiport\/xt_multiport...OK\r\nTesting\u00a0ipt_REJECT...OK\r\nTesting\u00a0ipt_state\/xt_state...OK\r\nTesting\u00a0ipt_limit\/xt_limit...OK\r\nTesting\u00a0ipt_recent...OK\r\nTesting\u00a0xt_connlimit...OK\r\nTesting\u00a0ipt_owner\/xt_owner...OK\r\nTesting\u00a0iptable_nat\/ipt_REDIRECT...OK\r\nTesting\u00a0iptable_nat\/ipt_DNAT...OK\r\nRESULT:\u00a0csf\u00a0should\u00a0function\u00a0on\u00a0this\u00a0server<\/pre>\n
 <\/p>\n
\u4e8c\uff0c\u914d\u7f6ecsf<\/strong><\/p>\n
\u914d\u7f6e\u6587\u4ef6\u91cc\u9762\uff0c\u53ef\u914d\u7f6e\u7684\u4e1c\u897f\u5f88\u591a\uff0c\u57fa\u672c\u914d\u7f6e\u5c31\u4e0d\u8bf4\u4e86\uff0c\u7f51\u4e0a\u6709\u3002\u5728\u8fd9\u91cc\u8bf4\u4e00\u4e0b\uff0c\u600e\u4e48\u914d\u7f6e\u9632\u6b62\u5c11\u91cf\u7684ddos,cc\u653b\u51fb<\/p>\n
1\uff0c\u7aef\u53e3\u6d2a\u6c34\u653b\u51fb\u4fdd\u62a4<\/strong><\/p>\n
\n
\n
\u67e5\u770b\u590d\u5236\u6253\u5370?<\/div>\n
vim\u00a0\/etc\/csf\/csf.conf\u00a0\u00a0\/\/\u6211\u505a\u4e86\u4e8c\u5904\u6539\u52a8\uff0c\u7b2c\u4e00\u5904\u5982\u4e0b\r\nPORTFLOOD\u00a0=\u00a0\"22;tcp;5;300,80;tcp;20;5\"<\/pre>\n<\/div>\n<\/div>\n
\u89e3\u91ca\uff1a<\/p>\n
1)\uff0c\u5982\u679c300\u79d2\u5185\u67095\u4e2a\u4ee5\u4e0a\u8fde\u63a5\u5230tcp\u7aef\u53e322\u7684\u8fde\u63a5\uff0c\u5219\u81f3\u5c11\u5728\u53d1\u73b0\u6700\u540e\u4e00\u4e2a\u6570\u636e\u5305300\u79d2\u540e\u963b\u6b62\u8be5IP\u5730\u5740\u8bbf\u95ee\u7aef\u53e322\uff0c\u5373\u5728\u8be5\u963b\u6b62\u88ab\u53d6\u6d88\u524d\u6709300\u79d2\u7684”\u5b89\u9759” \u671f\u3002<\/strong><\/p>\n
2)\uff0c \u5982\u679c5\u79d2\u5185\u670920\u4e2a\u4ee5\u4e0a\u8fde\u63a5\u5230tcp\u7aef\u53e380\u7684\u8fde\u63a5\uff0c\u5219\u81f3\u5c11\u5728\u53d1\u73b0\u6700\u540e\u4e00\u4e2a\u6570\u636e\u53055\u79d2\u540e\u963b\u6b62\u8be5IP\u5730\u5740\u8bbf\u95ee\u7aef\u53e380\uff0c\u5373\u5728\u8be5\u963b\u6b62\u88ab\u53d6\u6d88\u524d\u67095\u79d2\u7684”\u5b89\u9759” \u671f<\/strong><\/p>\n
\u7ed9\u6211\u611f\u89c9\u662f\uff0ccsf\u4e0d\u5149\u6709\u4e00\u9762\u5899\uff0c\u5899\u540e\u9762\uff0c\u8fd8\u6709\u4e00\u5f20\u7f51\uff0c\u52a8\u6001\u9632\u5fa1\u3002\u611f\u89c9\u8fd9\u4e00\u70b9\u505a\u7684\u6bd4\u8f83\u597d\u3002<\/strong><\/p>\n
2\uff0c\u542f\u52a8csf<\/strong><\/p>\n
[root@rudder\u00a0~]#\u00a0\/etc\/init.d\/csf\u00a0start<\/pre>\n
 <\/p>\n
\u542f\u52a8\u65f6\u6253\u5370\u51fa\u5f88\u591a\u4fe1\u606f\uff0c\u67e5\u770b\u4e00\u4e0b\uff0c\u6709\u6ca1\u6709fatal\uff0c\u4ee5\u53cawarning\uff0c\u5982\u679c\u6ca1\u6709\u3002<\/strong><\/p>\n
\n
\n
\u67e5\u770b\u590d\u5236\u6253\u5370?<\/div>\n
vim\u00a0\/etc\/csf\/csf.conf\u00a0\u00a0\/\/\u7b2c\u4e8c\u5904\u5982\u4e0b\r\nTESTING\u00a0=\u00a0\"0\"\u00a0\u00a0\u00a0\u00a0\u00a0\/\/TESTING\u75311\u6539\u4e3a0<\/pre>\n<\/div>\n<\/div>\n
\u91cd\u542f\u4e00\u4e0bcsf\uff0c[root@rudder ~]# csf -r<\/strong>,\u91cd\u542f\u547d\u4ee4\u90fd\u548capf\u662f\u4e00\u6837\u7684\u3002\u4e8c\u4e2a\u57fa\u4e8eiptables\u7684\u9632\u706b\u5899\uff0c\u771f\u7684\u6709\u5f88\u591a\u5730\u65b9\u76f8\u4f3c\u3002<\/p>\n
3\uff0c\u542f\u52a8lfd<\/strong><\/p>\n
\n
[root@rudder\u00a0~]#\u00a0\/etc\/init.d\/lfd\u00a0start<\/pre>\n<\/div>\n
\u8fd9\u4e2a\u6a21\u5757\uff0c\u6709\u4e00\u4e2a\u5f88\u91cd\u8981\u7684\u529f\u80fd\uff0c\u5c31\u662f\u8bb0\u5f55\u4e0b\u9632\u5fa1\u7684\u8fc7\u7a0b\u3002\u6765\u770b\u4e00\u4e0b\u6548\u679c\u3002<\/strong><\/p>\n
\n
\"lfd\"<\/a><\/p>\n
lfd log\u65e5\u5fd7<\/p>\n<\/div>\n
194.28.70.132\u88ab\u963b\u6b62\u56db\u6b21\u540e\uff0c\u88ab\u6c38\u4e45\u7981\u6b62\u8bbf\u95ee\u4e86\u3002\u7136\u540e\u6211\u67e5\u4e86\u4e00\u4e0b\uff0c\u8fd9\u4e2aIP\u81ea\u52a8\u88ab\u653e\u5230\u4e86csf.deny\u4e0b\u9762\u53bb\u4e86\u3002<\/strong><\/p>\n
\n
\n
\u67e5\u770b\u590d\u5236\u6253\u5370?<\/div>\n
[root@rudder\u00a0~]#\u00a0cat\u00a0\/etc\/csf\/csf.deny\r\n\u00a0###############################################################################\r\n\u00a0#\u00a0Copyright\u00a02006-2013,\u00a0Way\u00a0to\u00a0the\u00a0Web\u00a0Limited\r\n\u00a0#\u00a0URL:\u00a0http:\/\/www.configserver.com\r\n\u00a0#\u00a0Email:\u00a0sales@waytotheweb.com\r\n\u00a0###############################################################################\r\n\u00a0#\u00a0The\u00a0following\u00a0IP\u00a0addresses\u00a0will\u00a0be\u00a0blocked\u00a0in\u00a0iptables\r\n\u00a0#\u00a0One\u00a0IP\u00a0address\u00a0per\u00a0line\r\n\u00a0#\u00a0CIDR\u00a0addressing\u00a0allowed\u00a0with\u00a0a\u00a0quaded\u00a0IP\u00a0(e.g.\u00a0192.168.254.0\/24)\r\n\u00a0#\u00a0Only\u00a0list\u00a0IP\u00a0addresses,\u00a0not\u00a0domain\u00a0names\u00a0(they\u00a0will\u00a0be\u00a0ignored)\r\n\u00a0#\r\n\u00a0#\u00a0Note:\u00a0If\u00a0you\u00a0add\u00a0the\u00a0text\u00a0\"do\u00a0not\u00a0delete\"\u00a0to\u00a0the\u00a0comments\u00a0of\u00a0an\u00a0entry\u00a0then\r\n\u00a0#\u00a0DENY_IP_LIMIT\u00a0will\u00a0ignore\u00a0those\u00a0entries\u00a0and\u00a0not\u00a0remove\u00a0them\r\n\u00a0#\r\n\u00a0#\u00a0Advanced\u00a0port+ip\u00a0filtering\u00a0allowed\u00a0with\u00a0the\u00a0following\u00a0format\r\n\u00a0#\u00a0tcp\/udp|in\/out|s\/d=port|s\/d=ip\r\n\u00a0#\r\n\u00a0#\u00a0See\u00a0readme.txt\u00a0for\u00a0more\u00a0information\u00a0regarding\u00a0advanced\u00a0port\u00a0filtering\r\n\u00a0#\r\n\u00a0194.28.70.132\u00a0#\u00a0lfd:\u00a0(PERMBLOCK)\u00a0194.28.70.132\u00a0has\u00a0had\u00a0more\u00a0than\u00a04\u00a0temp\u00a0blocks\u00a0in\u00a0the\u00a0last\u00a086400\u00a0secs\u00a0-\u00a0Mon\u00a0Mar\u00a011\u00a004:19:14\u00a02013\r\n\u00a064.34.253.35\u00a0#\u00a0lfd:\u00a0(PERMBLOCK)\u00a064.34.253.35\u00a0has\u00a0had\u00a0more\u00a0than\u00a04\u00a0temp\u00a0blocks\u00a0in\u00a0the\u00a0last\u00a086400\u00a0secs\u00a0-\u00a0Mon\u00a0Mar\u00a011\u00a021:30:09\u00a02013<\/pre>\n<\/div>\n<\/div>\n
\u4ece\u5b98\u7f51\u4e0a\u627e\u4e86\u4e00\u4e9b\u53c2\u6570\u8bf4\u660e\uff1a<\/p>\n
\n
\n
\u67e5\u770b\u590d\u5236\u6253\u5370?<\/div>\n
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