Nagios Support Forum

Hi,

I just installed Nagios 4.0.8 on a freshly installed Fedora 20 linux server.
I followed the instructions here:
http://nagios.sourceforge.net/docs/3_0/ ... edora.html

But when I try to open up the web page for Nagios (http://localhost/nagios), it's giving me an error.
There is a red X that says "Not Running".

When I try to click on Hosts or Services, I get another error:
Error: Could not read object configuration data!

Verifying Permissions gives me an OK:
Total Warnings: 0
Total Errors: 0
Things look okay - No serious problems were detected during the pre-flight check

I'm guessing that this is some sort of permissions error, but I don't have any clue what I've done wrong.
I'm not really that versed in Linux.

Can someone please help?

Thanks,
Justin

Is the nagios process running? Run the following from the command line and post the output:

Yes, Nagios is started.

[root@localhost var]# service nagios restart
Restarting nagios (via systemctl): [ OK ]

Still doesn't work.

Is SELinux enabled on your host? I know it can cause issues.

I did check the SELINUX. It was set to permissive mode.

Okay, my friend may have helped me solve the problem.

Apparently, it was running, but not running as an init script. He told me to look at this:
http://nagios.sourceforge.net/docs/3_0/startstop.html

I ran it, and the website shows Nagios running now.
Now, I just have to make sure that it starts upon restarting and see if it works.

Okay, Nagios was not starting on boot up.

That turned out to be because of SELINUX (since I didn't turn it off permanently).

So, it looks like it's working now. Thanks for your help.

Thanks for letting us know its working!