Set up apache 2.1+ with mod_disk_cache before wiki

In order to make the wiki able to withstand much more load, a apache 2.1+ needs to be set up to serve it (or proxy it?) with proper settings for mod_cache. Something like this:

 + # Enable Caching of all moin pages. This does mean that pages which are edited
 + # will not appear modified unless someone does a "shift-refresh" or similar in
 + # his/her browser
 + #
 + <IfModule mod_cache.c>
 + <IfModule mod_disk_cache.c>
 + CacheRoot /www/wiki.apache.org/mod_disk_cache
 + CacheSize 1000000 # 1GB of maximum cache
 + CacheEnable disk /
 + CacheDirLevels 5
 + CacheDirLength 3
 + </IfModule>
 
 + <IfModule mod_mem_cache.c>
 + CacheEnable mem /
 + MCacheSize 4096
 + MCacheMaxObjectCount 100
 + MCacheMinObjectSize 1
 + MCacheMaxObjectSize 2048
 + </IfModule>
 + CacheIgnoreNoLastMod On # moin doesn't provide last-modified, but does provide cache-control
 + CacheDefaultExpire 600 # be conservative and make it 10 minutes
 + </IfModule>

should work.