Pre/Post Install problems with nagios Core on RHEL 5.8

[gadikota]

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bash-3.2# ls -la /usr/local/nagios/var/nagios.lock
-rw-r--r-- 1 dpnagios dpnagios 0 Apr 23 20:08 /usr/local/nagios/var/nagios.lock
bash-3.2#

dpnagios for sure has permissions set to be able to write to it.

[abrist]

lets check your group settings:

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cat /etc/group|grep nag

[gadikota]

Here you go

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bash-3.2# cat /etc/group | grep nag
dpnagios:x:36135:dpnagios,apache
dpnagcmd:x:36136:dpnagios,apache
bash-3.2#

[abrist]

Lets try running a check from the cli, masquerading as user dpnagios:

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su dpnagios
cd /usr/local/nagios/libexec
./check_ping  -H localhost -w 25,20% -c 50,40%

[gadikota]

Results :

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bash-3.2# su dpnagios
bash-3.2$ cd /usr/local/nagios/libexec
bash-3.2$ ./check_ping  -H localhost -w 25,20% -c 50,40%
PING OK - Packet loss = 0%, RTA = 0.03 ms|rta=0.034000ms;25.000000;50.000000;0.000000 pl=0%;20;40;0
bash-3.2$

[scottwilkerson]

Can you verify the existence of a status.dat file

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ls -l /usr/local/nagios/var/status.dat

Also, can you verify that your cgi.cfg has the correct path to your main.cfg

I want to point out that using different usernames for the nagios user and the fact that for whatever reason your system already had nagios users makes troubleshooting this quite difficult.

Do you know why your server had these users setup before?

[gadikota]

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bash-3.2# ls -l /usr/local/nagios/var/status.dat
ls: /usr/local/nagios/var/status.dat: No such file or directory
bash-3.2#

the user "nagios" doesnt exist on the system. But still when we run useradd, it complains that the user exists. Please see below.

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bash-3.2# bash-3.2# cat /etc/passwd | grep "^nagios"
bash-3.2# cat /etc/group | grep "^nagcmd"
bash-3.2# /usr/sbin/useradd -m nagios
useradd: user nagios exists
bash-3.2# cat /etc/passwd | grep nagios
dpnagios:x:36135:36135::/dpstore/localhome/dpnagios:/bin/bash  --> here it only shows the user dpnagios which i used to install nagios and never the user "nagios" which it says exists.
bash-3.2#

Not sure why this is happening and also not sure if the server is configured to check the AD or NIS before creating the local user.

[scottwilkerson]

please run

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cat /usr/local/nagios/etc/nagios.cfg |grep status_file