[Nagiosplug-help] check_users reports zero users

[Andreas Ericsson]

Gil Vidals wrote:
> The nrpe.cfg file on ns2 has this relevant entry: (this server correctly
> reports 1 user logged in)

When run as root or as whatever account NRPE runs under?

>      command[check_users]=/usr/local/nagios/libexec/check_users -w $ARG1$ -c
> $ARG2$
> 
> Now, I stay logged into ns2 (207.158.10.18), and then from the nagios server
> I execute the command:
>      [root at dev2 nagios]# ./libexec/check_nrpe -H 207.158.10.18 -c
> check_users -a 1 1
>      USERS OK - 0 users currently logged in |users=0;1;1;0
> 
> I'm running running RHEL 4.6 on ns2, and the nagios server is running CentOS
> 4.5.
> 
> How do I go about debugging this situation?
> 

Make sure you don't have any kernel modules installed that hide logged in
users from non-root accounts. Also make sure the /proc filesystem is readable
by the user NRPE runs as.

-- 
Andreas Ericsson                   andreas.ericsson at op5.se
OP5 AB                             www.op5.se
Tel: +46 8-230225                  Fax: +46 8-230231