Nagios Support Forum

Hi,

We just did a bulk upgrade on all Windows servers to latest NSClient++. We have a weird problem where several servers are not able to connect to the Nagios server. Running check_nt or check_nrpe returning socket timeout after 10 seconds. The rest of the servers are OK. We have a mixed of 2008, 2012 and 2012 R2.

Can anyone shed some light on this please?
Thanks.

Did you try increasing the socket Timeout? Because sometimes the plugin will take longer time to respond than the default 10sec.

I would suggest to increase the timeout and check.

here are few troubleshooting steps to common problems in NRPE:
https://assets.nagios.com/downloads/nag ... utions.pdf

Hi,

I did try -t 20 but still getting time out, this is with both check_nrpe and check_nt. It doesn't make sense that the rest of the servers are fine and only several aren't. We have 200+ servers.

jamesc23 wrote:Hi,

I did try -t 20 but still getting time out, this is with both check_nrpe and check_nt. It doesn't make sense that the rest of the servers are fine and only several aren't. We have 200+ servers.

How exactly is this happening?

Are the same servers the ones having problems each time?

Is it a 100% failure rate?

So,

I ran the commands manually from server as well as checking them from web based console. All services like CPU, uptime, memory, etc. are reporting CRITICAL - Socket timeout after 10 seconds.

Yes, all of the servers that aren't able to report back to the server are having the same issues.

Sounds like one of the modules is not loaded.

I've seen NSClient++ blow away the ini file in upgrades.

Here are some steps to re-create the ini file:

http://sites.box293.com/nagios/guides/n ... t-ini-file

OK I will try that bit later.

I have another issue where I need to add external script to nsclient.ini. I've copied the commands from the old ini but they don't seem to be working with the new version.

What's changed?

Edit: Please ignore. it's working now. sorry.

The CheckExternalScripts module might not be enabled. Steps to enable this are in my previous post.

Paste your ini file here and let us know which command is a problem.

It was this that was missing from the ini file

[/settings/external scripts/scripts]

Yep that'll cause problems.

I like using those commands that are in the link I posted. Specifically the --add-defaults can prevent issues in the future.