This article is a placeholder.
Edit /opt/rt4/etc/RT_SiteConfig.pm when making any changes to Request Tracker. RT_Config.pm is a static configuration file that is bound to change. However, it does contain all the legal settings in the file, so you may want to glance over it to get an idea of what's available and how the syntax is structured.
At the very least, you will want to change your database password by adding a line similar to this in RT_SiteConfig.pm: