I just installed Nagios 3.06 using the Nagios Quickstart Guide. My question is does the nagios user need a home directory and a shell? I created the nagios user in RHEL as a system account which didn't create a home directory. When I started the nagios service, it complained about nagios not having a home directory, but the service still started. The same was true for a shell for the nagios user. I edited the /etc/passwd file and removed /bin/bash and put in /sbin/nologin. When I started nagios, it complained that the account was not available but did seem to start. If I can get away with out a nagios home directory and a shell for nagios, I do I configure the setup to account for this?