NSclient. "Connection refused by host "

[Bolduc, Blair]

-----Original Message-----
From: nagios-users-admin at lists.sourceforge.net
[mailto:nagios-users-admin at lists.sourceforge.net]On Behalf Of Phil
Costelloe
Sent: Monday, February 07, 2005 05:09
To: nagios-users at lists.sourceforge.net
Subject: [SPAM] - RE: [Nagios-users] NSclient. "Connection refused by
host " - Email found in subject


Anders Christensen wrote:
> My NSclient 2.01 sometimes goes into the state of " Connection
> refused by host" Sometimes, I can correct the problem simply by
> restarting the service. 
> If the service is "locked", I can sometimes kill the pnsclient
> process using taskmanager. Otherwice, Im forced to reboot the server
> 
> What causes this "connection refused" ? How can I find the error and
> how to correct it? It sometimes helps to change the port number.

If the server also runs MS Exchange, it may be grabbing hold of
port 1248 and preventing NSClient from working. Configure NSClient
to use a much higher port number, above 2000 should be plenty high
enough. Make sure the port isn't used by anything else.

If you can't kill off a process using Task Manager, try using the
pstools (specifically pskill) freeware package available from
www.sysinternals.com.

Phil


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