Nagios Support Forum

Posted: **Thu Jan 27, 2022 7:17 pm**

Our datacenter lost connectivity for ~40mins this afternoon. We were greeted with a mountain of notifications when the firewall came back up, of course, but since connectivity has been restored, each of the instances monitored in AWS via IPSec tunnel have reported all failed services.

host reports "up" in Nagios
client can ping server
server can ping client
ncpa_listener/_passive are both running on the clients

The only way for us to connect to these instances is via VPN to our datacenter, & then through the IPSec tunnel. The tunnel reports up, and indeed, I can ssh to each of the affected clients without issue.

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[root@nagios libexec]# ./check_ncpa.py -H <clientIP> -t <token> -M 'processes'
UNKNOWN: Execution exceeded timeout threshold of 60s

Any help would be greatly appreciated.

Posted: **Fri Jan 28, 2022 9:30 am**

There's also this (to one of the affected clients):

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[root@nagios ~]# nmap 10.253.1.230 -Pn -p 5693

Starting Nmap 6.47 ( http://nmap.org ) at 2022-01-28 09:27 EST
Nmap scan report for 10.253.1.230
Host is up (0.033s latency).
PORT     STATE SERVICE
5693/tcp open  unknown

Nmap done: 1 IP address (1 host up) scanned in 0.07 seconds

(I've tried restarting the ncpa services already)

Posted: **Fri Jan 28, 2022 4:27 pm**

I see you have an open ticket for this issue in our ticketing system, so I will be closing this thread. In the future, please open only one forum post or ticket per issue so we can best focus our efforts. Thank you!

Posted: **Fri Jan 28, 2022 4:28 pm**

Hello @travisjburrell

Thanks for reaching out, appears from the 'nmap' results from port 5693 to that server. Want to run the following to help verify:

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/usr/local/nagios/libexec/check_ncpa.py -H <yourhostaddresshere> -t <yourtokenhere> --list --verbose

You posted that you are able to ssh to the server and wanted to suggest the option to configure ssh service check(s).

Thanks,
Perry

Nagios Support Forum

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Re: server and client can ping, but services aren't reportin

Re: server and client can ping, but services aren't reportin