socket timeout after 20 sec

[Jayson Broughton]

Try opening a telnet session to that port (to test the firewall theory)
telnet <ip_windows_server> 1248

you should get:
Trying <ip address>
Connected to <ip address>.
Escape Character is '^\]'.


Then Ctl-C to exit out of it (if your in linux that's what it looks like)

50 Seconds is pretty long.  I have a server that is monitored by nagios,
2000+ miles away and 14 traceroute hops.  It was taking longer than 20
seconds, so I set it to 60 seconds, and it takes ~30seconds..so I just
doubled in case of network latency.

~Jayson


-----Original Message-----
From: Andreas Ericsson [mailto:ae at op5.se] 
Sent: Thursday, May 14, 2009 1:33 PM
To: Anirudh Srinivasan
Cc: nagios-users at lists.sourceforge.net
Subject: Re: [Nagios-users] socket timeout after 20 sec

Anirudh Srinivasan wrote:
>  Hey Folks,
> 
> I know " socket timeout after 20 sec" has been discussed so many time in
all
> the forums and post, but still this is not so clear to me.
> 
> Nagios server : RHEL 5
> 
> NC_NET used on Windows server.
> 
> In startup.cfg the port is 12489 and the ip_passive is ip address of the
> nagios server.
> 
> Even through the Linux cli i get the same error
> 
> ./check_nt -H <ip_windows_server> -v FREEDISKSPACE -l C -w 80 -c 90 -p
1248
> -t 50
> CRITICAL - socket timeout after 50 sec
> 
> I really have been breaking my head on this. Please suggest some idea or
> your experience
> 

There is a firewall blocking the traffic somewhere along the way, or you
have managed to build a cyclic token-ring network (if you don't know what
those are, consider yourself lucky and look over your firewalls).

-- 
Andreas Ericsson                   andreas.ericsson at op5.se
OP5 AB                             www.op5.se
Tel: +46 8-230225                  Fax: +46 8-230231

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