check_disk not working in CentOS 6.6

[bsivavani]

Hi Team,

Check_disk is not working in CentOS 6.6, I am getting below error from management server

[root@auscrp ~]# /usr/local/nagios/libexec/check_nrpe -H 10.172.66.133 -t 30 -c check_disk -a '-w 20% -c 10% -p /dev'
NRPE: Unable to read output
[root@auscrp ~]#

However I am able to see data for Memory and CPU from the same server.

Please let us know why check_disk not giving desired results.

[Box293]

Can you execute this on the 10.172.66.133 server and return the output.

Code: Select all

su nagios
/usr/local/nagios/libexec/check_disk -w 20% -c 10% -p /dev

[bsivavani]

Please find below

[root@AUSXHVistaApp01 plugins]# pwd
/usr/lib64/nagios/plugins
[root@AUSXHVistaApp01 plugins]#

[root@AUSXHVistaApp01 plugins]# ./check_disk -w 20% -c 10% -p /dev
DISK OK - free space: / 15739 MB (84% inode=96%);| /=2818MB;15645;17601;0;19557
[root@AUSXHVistaApp01 plugins]#

[rkennedy]

Can you actually try to run those commands as the nagios user -

Code: Select all

su nagios
./check_disk -w 20% -c 10% -p /dev

Also, please run -

Code: Select all

ls -l /usr/lib64/nagios/plugins/

[bsivavani]

[root@XXXX ~]# ls -l /usr/lib64/nagios/plugins/
total 300
-rwxr-xr-x. 1 root root 5355 Sep 23 10:16 check_cpu_stats.sh
-rwxr-xr-x. 1 nrpe nrpe 82847 Nov 23 14:02 check_disk
-rwxr-xr-x. 1 root root 25602 Sep 23 10:16 check_netstat.pl
-rwxr-xr-x. 1 root root 3259 Sep 23 10:16 check_open_files.pl
-rwxr-xr-x. 1 root root 2174 Sep 23 10:16 check_services
-rwxr-xr-x. 1 nrpe nrpe 62873 Nov 23 14:02 check_swap
-rwxr-xr-x. 1 root root 2936 Sep 23 10:16 check_wave
-rwxr-xr-x. 1 root root 710 Sep 23 10:16 check_yum
-rwxr-xr-x. 1 root root 3060 Sep 23 10:15 custom_check_mem
-rwxr-xr-x. 1 root root 915 Sep 23 10:17 custom_check_procs
-rwxr-xr-x. 1 root root 44608 Sep 11 13:06 negate
-rwxr-xr-x. 1 root root 41632 Sep 11 13:06 urlize
-rwxr-xr-x. 1 root root 2791 Sep 11 13:05 utils.sh
[root@XXX ~]#


nagios user not available in this server. Is it mandatory to create nagios user.

[lmiltchev]

nagios user not available in this server. Is it mandatory to create nagios user.

The "nagios" user is most probably what you have set up in the nrpe.cfg...

Code: Select all

nrpe_user=nagios

How did you install NRPE and Nagios plugins on the client? Did you use our Linux agent installer?

https://assets.nagios.com/downloads/nag ... _Agent.pdf

When you compile and install nagios plugins you run:

Code: Select all

./configure --with-nagios-user=nagios --with-nagios-group=nagios

so, I would say, "yes", you need to have nagios user on this system. I would recommend using our official documentation for installing the Linux agent (listed above).

[bsivavani]

This is CentOS 6.6 not linux agent.

[hsmith]

How did you install NRPE and Nagios plugins on the client?

@bsivavani can you please elaborate on this?