Location of some config files

Hi, We are trying to automate whm process and customization at our end and for that I need to the location of the following configuration files: 1. Config files for DNS cluster 2. Config file where we can set whm "Update Prefernece" 3. Config files to setup backup 4. Server timezone (does it use centos timezone or it has its own internal config file) 5.A config file where we can set "Apache SpamAssassin": Forced Global ON: on" Thanks.