Nagios Support Forum

Good Evening

im relatively a newbie at nagios and Linux platforms in General. I have just installed Nagios on my Ubuntu version 14.04.3 LTS server. I can launch it on the browser but then there is a big red cross that says Not running after I successfully login.

When I run:
sudo /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg

I get the below output:

Nagios Core 4.3.2
Copyright (c) 2009-present Nagios Core Development Team and Community Contributors
Copyright (c) 1999-2009 Ethan Galstad
Last Modified: 2017-05-09
License: GPL

Website: https://www.nagios.org
Reading configuration data...
Read main config file okay...
Read object config files okay...

Running pre-flight check on configuration data...

Checking objects...
Checked 8 services.
Checked 1 hosts.
Checked 1 host groups.
Checked 0 service groups.
Checked 1 contacts.
Checked 1 contact groups.
Checked 25 commands.
Checked 5 time periods.
Checked 0 host escalations.
Checked 0 service escalations.
Checking for circular paths...
Checked 1 hosts
Checked 0 service dependencies
Checked 0 host dependencies
Checked 5 timeperiods
Checking global event handlers...
Checking obsessive compulsive processor commands...
Checking misc settings...

Total Warnings: 0
Total Errors: 0

Things look okay - No serious problems were detected during the pre-flight check




and when I run: service nagios status
nagios is not running



when I run: service nagios start
Starting nagios: done.

BUT it keeps showing: service nagios status
nagios is not running

Even after I try to start it several times.


Yur speed assistance wuld be much appreciated.

What does the nagios log say? Typically it is located at /usr/local/nagios/var/nagios.log and perhaps more info would be in /var/log/syslog.

Hello Avandemore

I'm seeing this on the logs at /usr/local/nagios/var/nagios.log

[1495815769] Nagios 4.3.2 starting... (PID=3488)
[1495815769] Local time is Fri May 26 18:22:49 CAT 2017
[1495815769] LOG VERSION: 2.0
[1495815769] qh: Failed to init socket '/usr/local/nagios/var/rw/query.sh'. bind() failed: No such file or directory
[1495815769] Error: Failed to initialize query handler. Aborting
[1495817115] Nagios 4.3.2 starting... (PID=8695)
[1495817115] Local time is Fri May 26 18:45:15 CAT 2017
[1495817115] LOG VERSION: 2.0
[1495817115] qh: Failed to init socket '/usr/local/nagios/var/rw/query.sh'. bind() failed: No such file or directory
[1495817115] Error: Failed to initialize query handler. Aborting

What is the output of ll /usr/local/nagios/var/rw/? You may need to give the nagios user access to the file mentioned in the log.

What's the output of sestatus?

This is the output for thos commands:

cacti@bofi:/tmp$ sudo ls -l /usr/local/nagios/var/rw/
ls: cannot access /usr/local/nagios/var/rw/: No such file or directory
cacti@bofi:/tmp$ sudo ls -l /usr/local/nagios/var/rw/
ls: cannot access /usr/local/nagios/var/rw/: No such file or directory
cacti@bofi:/tmp$

cacti@bofi:/tmp$ sestatus
SELinux status: disabled

I am assuming you compiled since you are on 4.3.2. What instructions did you use?

What's the output of this
ls -l /usr/local/nagios/var/

Your log is is in var, so we know you have that. The question is why you don't have rw.

I see you are using a cacti user. I assume cacti is installed on this server? What instructions did you use for that?

Are you just trying to learn or is this a production environment? If you have 7 or less hosts, then you can use Nagios XI for free. We don't support XI installs on Ubuntu though.