NRPE: unable to read output

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anmol.k
Posts: 5
Joined: Tue May 23, 2017 5:23 am

NRPE: unable to read output

Post by anmol.k »

Hi ,
I have installed nagios core(onj RHEL 7.2) and i am trying to monitor another server(RHEL 7.2) using NRPE. After all the installation , i am getting this error in nagios console:
NRPE :Unable to read output.(screenshot also attached)
Please suggest what change needsto be done.

Regards
Anmol
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nagiosError.png
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mcapra
Posts: 3739
Joined: Thu May 05, 2016 3:54 pm

Re: NRPE: unable to read output

Post by mcapra »

Did you follow any particular documentation when setting up NRPE? If so, could you share it?

This document is good at catching some common mistakes. It's probably worth reviewing:
https://assets.nagios.com/downloads/nag ... utions.pdf

If you run through that document and were unable to resolve the issue, I would recommend sharing your machine's NRPE configuration file (nrpe.cfg) for the technicians to review as well as the outputs of the following commands executed from the remote RHEL 7.2 machine you are trying to monitor:

Code: Select all

find / -name check_load
ps -aef | grep nrpe
service xinetd status
service nrpe status
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https://www.mcapra.com/
tmcdonald
Posts: 9117
Joined: Mon Sep 23, 2013 8:40 am

Re: NRPE: unable to read output

Post by tmcdonald »

Thanks for the post, @mcapra! OP, let us know if you have further questions.
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