This is the default example configuration of disk_cache.conf provided by Apache. This config file was generated by Apache running on Ubuntu 12.04.
It is located under: /etc/apache2/mods-available/disk_cache.conf
<IfModule mod_disk_cache.c>
# cache cleaning is done by htcacheclean, which can be configured in
# /etc/default/apache2
#
# For further information, see the comments in that file,
# /usr/share/doc/apache2.2-common/README.Debian, and the htcacheclean(8)
# man page.
# This path must be the same as the one in /etc/default/apache2
CacheRoot /var/cache/apache2/mod_disk_cache
# This will also cache local documents. It usually makes more sense to
# put this into the configuration for just one virtual host.
#CacheEnable disk /
CacheDirLevels 5
CacheDirLength 3
</IfModule>
Download the raw file with wget or curl
wget -O disk_cache.conf.example http://exampleconfig.com/static/raw/apache/ubuntu12.04/etc/apache2/mods-available/disk_cache.conf
curl http://exampleconfig.com/static/raw/apache/ubuntu12.04/etc/apache2/mods-available/disk_cache.conf > disk_cache.conf.example
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