Nagios Support Forum

Posted: **Fri Mar 16, 2012 12:54 pm**

Nagiosxi Is installed and running trying to get nrpe to work with Nagiosxi! I think the issue is that the version of nrpe on the servers I need to monitor is a differenet verision and the check are way different than whats configured in nagiosxi for nrpe! I have alot of nix servers that this will pose an issue with! I need to know the correct way to address the issue at hand.

The error message from nagiosxi "CHECK_NRPE: Received 0 bytes from daemon. Check the remote server logs for error messages."

i have validated from telent I can connect and that the server is in the allowed host section for nrpe any qugguestion would be great

Posted: **Fri Mar 16, 2012 2:28 pm**

Can you run the basic command against one of your hosts and show us the output?

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cd /usr/local/nagios/libexec
./check_nrpe -H <aClientAddress>

Posted: **Fri Mar 16, 2012 2:34 pm**

/check_nrpe -H XXX.XX.XXX.XXX results
CHECK_NRPE: Error - Could not complete SSL handshake.

Posted: **Fri Mar 16, 2012 2:40 pm**

Run the following command in terminal on the client machine and show the output:

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# /usr/local/nagios/libexec/check_nrpe -H localhost

You should see:

NRPE v2.12

Note: If it doesn't work, you may have to add "127.0.0.1" to the "only_from" line in "/etc/xinetd.d/nrpe" file and restart the daemon:

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# service xinetd restart

Also, show the log messages:

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# tail /var/log/messages

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