{"id":2304,"date":"2013-07-12T19:46:24","date_gmt":"2013-07-12T11:46:24","guid":{"rendered":"http:\/\/rmohan.com\/?p=2304"},"modified":"2013-07-12T19:59:55","modified_gmt":"2013-07-12T11:59:55","slug":"shell-script-for-apache-dos-protection","status":"publish","type":"post","link":"https:\/\/mohan.sg\/?p=2304","title":{"rendered":"Shell script for apache dos protection"},"content":{"rendered":"

#!\/bin\/bash
\ncur=`date +%H%M%S`
\nbecur=`date -d “1 minute ago” +%H%M%S`
\nbadip=`tail -n 10000 \/var\/log\/httpd\/access_log | egrep -v “\\.(gif|jpg|jpeg|png|css|js)” | awk -v a=”$becu
\nr” -v b=”$cur” -F [‘ ‘:] ‘{t=$5$6$7;if (t>=a && t<=b) print $1}' | sort | uniq -c | awk '{if ($1>=20) print $2}
\n‘`
\nif [ ! -z $badip ];then
\nfor ip in $badip;
\ndo
\nif test -z “`\/sbin\/iptables -nL | grep $ip`”;then
\n\/sbin\/iptables -I INPUT -s $ip -j DROP
\nfi
\ndone
\nfi<\/p>\n","protected":false},"excerpt":{"rendered":"

#!\/bin\/bash cur=`date +%H%M%S` becur=`date -d “1 minute ago” +%H%M%S` badip=`tail -n 10000 \/var\/log\/httpd\/access_log | egrep -v “\\.(gif|jpg|jpeg|png|css|js)” | awk -v a=”$becu r” -v b=”$cur” -F [‘ ‘:] ‘{t=$5$6$7;if (t>=a && t=20) print $2} ‘` if [ ! -z $badip ];then for ip in $badip; do if test -z “`\/sbin\/iptables -nL | grep $ip`”;then \/sbin\/iptables -I […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"_links":{"self":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts\/2304"}],"collection":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2304"}],"version-history":[{"count":2,"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts\/2304\/revisions"}],"predecessor-version":[{"id":2306,"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts\/2304\/revisions\/2306"}],"wp:attachment":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2304"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2304"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2304"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}