Nagios Support Forum

Try:

Thanks @WillemDH!

@cyberportnoc - let us know the results when you get a chance to run the command.

Hi,

[root@rhel64-02 ~]# su nagios -c '/etc/nagios/nrpe.d/check_mem -uC -w 70 -c 90'
This account is currently not available.

Please take a look

Thanks,
Kelvin

cyberportnoc wrote:Dear Box,

There are no nagios user exist in server.
It is run by nrpe process

[root@rhel64-02 ~]# cat /etc/passwd | grep nagios
nagios498:499::/var/spool/nagios:/sbin/nologin
[root@rhel64-02 ~]# cat /etc/passwd | grep nrpe
nrpe497:498:NRPE user for the NRPE service:/var/run/nrpe:/sbin/nologin
[root@rhel64-02 ~]# su nrpe
This account is currently not available.
[root@rhel64-02 ~]#

Please advise.

Thanks,
Kelvin

Box293 wrote:What is the output of:

Code: Select all

su nrpe -c '/etc/nagios/nrpe.d/check_mem -uC -w 70 -c 90'

Here we can see that the nrpe account is not letting the plugin run.

Do any checks work for this host via nrpe? If so, show us which one in the nrpe.cfg works?

Dear Box,

[root@ccnagios01 libexec]# ./check_nrpe -H 192.168.38.144 -c nagios_cpu
OK
user: 0%, system: 0%, iowait: 0%, idle: 100%
| cpu_user=0%;70;90; cpu_sys=0%;70;90; cpu_iowait=0%;70;90; cpu_idle=100%;

Please give it a check.

Thanks,
Kelvin

On the NPRE client, can you please show us the contents of the file:
/etc/sudoers
Also, any files in /etc/sudoers.d/

Dear Box,

Below are those information:
[root@rhel64-02 ~]# cat /etc/sudoers

Defaults always_set_home
Defaults env_reset
Defaults env_keep = "COLORS DISPLAY HOSTNAME HISTSIZE INPUTRC KDEDIR LS_COLORS"
Defaults env_keep += "MAIL PS1 PS2 QTDIR USERNAME LANG LC_ADDRESS LC_CTYPE"
Defaults env_keep += "LC_COLLATE LC_IDENTIFICATION LC_MEASUREMENT LC_MESSAGES"
Defaults env_keep += "LC_MONETARY LC_NAME LC_NUMERIC LC_PAPER LC_TELEPHONE"
Defaults env_keep += "LC_TIME LC_ALL LANGUAGE LINGUAS _XKB_CHARSET XAUTHORITY"
Defaults secure_path = /sbin:/bin:/usr/sbin:/usr/bin
root ALL=(ALL) ALL
%nrpe ALL=(ALL) NOPASSWD: /etc/nagios/nrpe.d/nagios_guest_sudo.sh

[root@rhel64-02 ~]# ls /etc/sudoers.d/
[root@rhel64-02 ~]#

Please give it a check.

Thanks,
Kelvin

Can you login to the Nagios server, run the following commands and post the output?
./check_nrpe -H 192.168.38.144 -c nagios_memory
./check_nrpe -H 192.168.38.144 -c nagios_guest_memory
./check_nrpe -H 192.168.38.144 -c nagios_cpu
Also, can you post where you downloaded the check_mem plugin from so we can review it?

[root@ccnagios01 libexec]# ./check_nrpe -H 192.168.38.144 -c nagios_memory
NRPE: Unable to read output
[root@ccnagios01 libexec]# ./check_nrpe -H 192.168.38.144 -c nagios_guest_memory
OK
xcpack01 - 2%
xcpalx03 - 4%
xcpalx39-new - 2%
| xcpack01=2%;0;100; xcpalx03=4%;0;100; xcpalx39-new=2%;0;100;
[root@ccnagios01 libexec]# ./check_nrpe -H 192.168.38.144 -c nagios_cpu
OK
user: 0%, system: 0%, iowait: 0%, idle: 100%
| cpu_user=0%;70;90; cpu_sys=0%;70;90; cpu_iowait=0%;70;90; cpu_idle=100%;

In the other hand, is it any plugin of memory check which are able ignore "cached memory"
Please advise.

Thanks,
Kelvin

If there are another memory script which can ignore the cached memory.

I can replace to use that.

Please advise.

Thanks,
Kelvin