NRPE only_from

Martyn martyn at chetnet.co.uk
Tue Mar 3 15:02:12 CET 2009


Hi all, I want to test connectivity from the outside world to my Linux box
inside my network, I'm wanting to test before I try and monitor an external
box.

On the inside of my network I have a Linux box on 192.168.3.245 running NRPE
and my Nagios Server on 192.168.3.247
Both of these are connected to a 3560 Cisco Switch which in turn is
connected to my Linksys Router then onto my Cable modem.

On my Linux box I have in my nrpe "only_from = 192.168.3.247 which allows
Nagios to gather its stats, however if I change it to the public IP address
that is given I get the following errors "Check_NRPE: Error Could not
complete SSL handshake".

In my .cfg file on my Nagios server (the cfg of the box I want to monitor) I
have pointed it to my public IP address and restarted Nagios.
On my Linksys Router I'm port forwarding to the Linux box port 5666 but it
makes no difference, I have even put my Linux box in the DMZ but still no
joy.

Does anybody know how I can test my Linux box so it looks like its from the
external network, failing that does anybody have a test box I can try and
monitor for 10 minutes or so.

Also, NRPE the line only_from, am I allowed to put the domain name or is it
just IP address only.

Thanks

Martyn


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