--- /dev/null
+class apache2::dynamic {
+ @ferm::rule { 'dsa-http-limit':
+ prio => '20',
+ description => 'limit HTTP DOS',
+ chain => 'http_limit',
+ rule => 'mod limit limit-burst 60 limit 15/minute jump ACCEPT;
+ jump DROP'
+ }
+
+ @ferm::rule { 'dsa-http-soso':
+ prio => '21',
+ description => 'slow soso spider',
+ chain => 'limit_sosospider',
+ rule => 'mod connlimit connlimit-above 2 connlimit-mask 21 jump DROP;
+ jump http_limit'
+ }
+
+ @ferm::rule { 'dsa-http-yahoo':
+ prio => '21',
+ description => 'slow yahoo spider',
+ chain => 'limit_yahoo',
+ rule => 'mod connlimit connlimit-above 2 connlimit-mask 16 jump DROP;
+ jump http_limit'
+ }
+
+ @ferm::rule { 'dsa-http-google':
+ prio => '21',
+ description => 'slow google spider',
+ chain => 'limit_google',
+ rule => 'mod connlimit connlimit-above 2 connlimit-mask 19 jump DROP;
+ jump http_limit'
+ }
+
+ @ferm::rule { 'dsa-http-bing':
+ prio => '21',
+ description => 'slow bing spider',
+ chain => 'limit_bing',
+ rule => 'mod connlimit connlimit-above 2 connlimit-mask 16 jump DROP;
+ jump http_limit'
+ }
+
+ @ferm::rule { 'dsa-http-baidu':
+ prio => '21',
+ description => 'slow baidu spider',
+ chain => 'limit_baidu',
+ rule => 'mod connlimit connlimit-above 2 connlimit-mask 16 jump DROP;
+ jump http_limit'
+ }
+
+ @ferm::rule { 'dsa-http-rules':
+ prio => '22',
+ description => 'http subchain',
+ chain => 'http',
+ rule => '
+ saddr ( 74.6.22.182 74.6.18.240 67.195.0.0/16 ) jump limit_yahoo;
+ saddr 124.115.0.0/21 jump limit_sosospider;
+ saddr (65.52.0.0/14 207.46.0.0/16) jump limit_bing;
+ saddr (66.249.64.0/19) jump limit_google;
+ saddr (123.125.71.0/24 119.63.192.0/21 180.76.0.0/16) jump limit_baidu;
+
+ mod recent name HTTPDOS update seconds 1800 jump log_or_drop;
+ mod hashlimit hashlimit-name HTTPDOS hashlimit-mode srcip hashlimit-burst 600 hashlimit 30/minute jump ACCEPT;
+ mod recent name HTTPDOS set jump log_or_drop'
+ }
+
+ @ferm::rule { 'dsa-http':
+ prio => '23',
+ description => 'Allow web access',
+ rule => 'proto tcp dport (http https) jump http'
+ }
+}