I'm a Ubuntu Noob who's trying to upgrade Nagios. How do I tell the original prefix path that was used to install the existing version?
.cfgs are in /etc/nagios
plugins-auto.cfg is in /var/cache/nagios
From what I've read, I basically backup the .cfgs, install the new version, then replace the .cfgs, but I want to make sure I install to the same path.