Problem connecting to nsclient++

[Pete Dewell]

Hi,

I have an odd problem connecting to a Windows host running nsclient++

We have a server, running Nagios 3.2.0 under RedHat Fedora 12, which 
connects over a VPN to another network. We are already monitoring other 
devices over the VPN with no problem (phone systems, wireless access 
points etc).

I have to add a Windows box, running windows 7, to the monitoring. I 
have installed nsclient++ on it using a configuration that works with 
other Windows machines. However, the nagios server is unable to connect 
to the nsclient - the connection times out. Trying to telnet in on the 
nsclient port also gives a timeout.

To make things worse, I can connect (via telnet) from other machines on 
the nagios server network, so I know that nsclient is running correctly.
I am also able to connect from other networks without any issue.

Running nsclient++ -test I can see all other machines connecting in, and 
giving results as expected. However, when I try & connect from the main 
nagios server there is nothing, not even an "unauthorized access" 
message (yes, I've checked that as well).

The server can ping the windows machine OK, and the windows firewall is 
turned off. The windows machine can also ping back to the nagios server, 
so there is a link there.

Any thoughts/ideas would be appreciated.

Thanks

Pete Dewell

-- 

Pete Dewell | Stuff Done
pete at stuff-done.co.uk


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