+ case $hostname {
+ busoni,duarte,holter,lindberg,master,powell,rore: {
+ @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 (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"
+ }
+ }
+ default: {
+ @ferm::rule { "dsa-http":
+ prio => "23",
+ description => "Allow web access",
+ rule => "&SERVICE(tcp, (http https))"
+ }
+ }
+ }
+ @ferm::rule { "dsa-http-v6":
+ domain => "(ip6)",
+ prio => "23",
+ description => "Allow web access",
+ rule => "&SERVICE(tcp, (http https))"
+ }