{"id":493,"date":"2017-03-11T23:25:33","date_gmt":"2017-03-11T15:25:33","guid":{"rendered":"http:\/\/www.huike007.cn\/?p=493"},"modified":"2017-03-11T23:25:33","modified_gmt":"2017-03-11T15:25:33","slug":"linux%e8%87%aa%e5%8a%a8%e5%b1%8f%e8%94%bd%e7%88%86%e7%a0%b4ip","status":"publish","type":"post","link":"http:\/\/www.huike007.cn\/?p=493","title":{"rendered":"linux\u81ea\u52a8\u5c4f\u853d\u7206\u7834IP"},"content":{"rendered":"<p>linux\u81ea\u52a8\u5c4f\u853d\u7206\u7834IP<br \/>\n\u7ed3\u5408\/var\/log\/secure\u6587\u4ef6\uff0c\u5c06ssh\u767b\u9646\u5931\u8d25\u6b21\u6570\u5927\u4e8eN\u7684IP\u5c01\u9876<br \/>\nN=3<br \/>\nSEC_FILE=\/var\/log\/secure<br \/>\nfor ip in `grep &#8220;Failed password&#8221; $SEC_FILE|grep -Eo &#8220;([0-9]{1,3}\\.){3}[0-9]{1,3}&#8221;|sort -n|uniq -c|awk &#8216;{if($1&gt;$N) print $2}&#8217;`<br \/>\ndo<br \/>\niptables -A INPUT -s $ip -p tcp &#8211;dport 22 -j DROP<br \/>\ndone<\/p>\n","protected":false},"excerpt":{"rendered":"<p>linux\u81ea\u52a8\u5c4f\u853d\u7206\u7834IP \u7ed3\u5408\/var\/log\/secure\u6587\u4ef6\uff0c\u5c06ssh\u767b\u9646\u5931\u8d25\u6b21\u6570\u5927\u4e8eN\u7684IP\u5c01\u9876 N= [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[180],"tags":[389],"_links":{"self":[{"href":"http:\/\/www.huike007.cn\/index.php?rest_route=\/wp\/v2\/posts\/493"}],"collection":[{"href":"http:\/\/www.huike007.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.huike007.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.huike007.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.huike007.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=493"}],"version-history":[{"count":1,"href":"http:\/\/www.huike007.cn\/index.php?rest_route=\/wp\/v2\/posts\/493\/revisions"}],"predecessor-version":[{"id":494,"href":"http:\/\/www.huike007.cn\/index.php?rest_route=\/wp\/v2\/posts\/493\/revisions\/494"}],"wp:attachment":[{"href":"http:\/\/www.huike007.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=493"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.huike007.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=493"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.huike007.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=493"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}