...
- /usr/lib/apache2/modules/mod_jk.so (this will not always be the most current - you can see the current version by looking at the package info)
/etc/
lib/apache2libapache2-mod-jk/workers.properties (create a generic workers.properties file for generic setup of Tomcat 6.x)
- /etc/apache2/mods-available/jk.load (file which loads the mod_jk module)
- /etc/apache2/mods-enabled/jk.load (symbolic link which starts the mod_jk module)
...