fixing nagios on debian
I had trouble with CGI access to Nagios after an apt-get upgrade on my debian box. I kept getting the error “It appears as though you do not have permission to view information for any of the services you requested”. The key is to remember to check that all the configuration files are readable by the nagios user, since when it’s running as a CGI, it doesn’t have the same access as it does when running as a daemon.