Ok so I did my homework prior to posting this message and can't seem to find anybody who has had this exact same problem surprisingly enough.
Anyway I am using Fedora Core 3, and have installed Nagios Version 2.0b3. I am using this system for nothing else at all. Only for Nagios.
I did Nagios install as root.
I followed the instructions to a tee! Spent whole day dedicated to making sure I didn't miss a step. I also used the GZIPed package and not the RPM package for Nagios and the Nagios plugins.
My problem is I get the Nagios home page fine, and the documentation page fine, but all other links down the left side from "Tactical Overview" through "View Config" all give me the following browser error… (Actually there are a few pages that give me a CGI not found error, but I figured I deal with those later….)
Internal Server Error
The server encountered an internal error or misconfiguration and was unable to complete your request.
Please contact the server administrator, firstname.lastname@example.org and inform them of the time the error occurred, and anything you might have done that may have caused the error.
More information about this error may be available in the server error log.
And then in my Apache error.log I get the following error...
[Date][error] client IP Permission denied: exec of '/usr/local/nagios/sbin/status.cgi' failed, referrer: 192.168.1.119/nagios/side.html
[Date][error] [client IP] Premature end of script headers: status.cgi, referer: 192.168.1.119/nagios/side.html
I have tried both with and without authentication flag set.
I have tried with and without the default user name options set.
And finally I have tried with setting auth on all folders CGI and HTML via the .htaccess file.
I'm at a total loss. Any ideas?