Hi
I have installed nagios in one virtual machine having centOS 5.3, i need to monitor another VM which also works in centOS. I have installed Nagios plugins and Nrpe in both the machines.

To check the connectivity, in the nagiosserver if i give
/usr/local/nagios/libexec/check_nrpe -H <local host ip add>

its showing

NRPE v 2.12

if i give
/usr/local/nagios/libexec/check_nrpe -H <Remote host ip add>

its showing the error like

Connection refused or timed out

I am able to monitor a windows server in nagios using nsclient++

but when i try to monitor a linux server, i got stopped with this problem.

Hope some of u came across this problem. can anyone help me out for this?

Hello,

Is the remote server accepting connections from your Nagios server on the NRPE port? Is the /usr/local/nagios/etc/nrpe.cfg file setup correctly? Do you have firewall or SELinux active on the remote server and if so did you allow the NRPE traffic?

Type in a terminal on the remote machine:
and post output here.

Also post your nrpe.cfg please.

Kind regards,

Eric