first stab at http limit rules - how bad can it go?

Signed-off-by: Stephen Gran <steve@lobefin.net>

diff --git a/modules/apache2/manifests/init.pp b/modules/apache2/manifests/init.pp
index 6235ed3..8b6ba0b 100644 (file)
--- a/modules/apache2/manifests/init.pp
+++ b/modules/apache2/manifests/init.pp
@@ -129,8 +129,34 @@ class apache2 {
                command => "/etc/init.d/apache2 force-reload",
                refreshonly => true,
        }
-        @ferm::rule { "dsa-apache":
-                domain          => "(ip ip6)",
+        @ferm::rule { "dsa-http-limit":
+                prio            => "20",
+                description     => "limit HTTP DOS",
+                rule            => "@subchain 'http_limit' mod limit limit-burst 60 limit 15/minute jump ACCEPT; jump DROP;"
+        }
+        @ferm::rule { "dsa-http-soso":
+                prio            => "21",
+                description     => "slow yahoo spider",
+                rule            => "@subchain 'limit_sosospider' mod connlimit connlimit-above 2 connlimit-mask 21 jump DROP; jump http_limit"
+        }
+        @ferm::rule { "dsa-http-yahoo":
+                prio            => "21",
+                description     => "slow yahoo spider",
+                rule            => "@subchain 'limit_yahoo' mod connlimit connlimit-above 2 connlimit-mask 16 jump DROP; jump http_limit"
+        }
+        @ferm::rule { "dsa-http-rules":
+                prio            => "22",
+                description     => "http subchain",
+                rule            => "@subchain 'http' saddr ( 74.6.22.182 74.6.18.240 ) jump limit_yahoo; saddr 124.115.0.0/21 jump limit_sosospider; 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 jump http;"
+        }
+        @ferm::rule { "dsa-http-v6":
+                domain          => "(ip6)",
+                prio            => "23",
                 description     => "Allow web access",
                 rule            => "&SERVICE(tcp, 80)"
         }