NRDP / NSCA not working

[jcrespo]

Hi all,

We've already set up all the config to let it work, but still no retrieving data from our deployed Nagios.
There's any restriction about versions to work together?

Thanks!

[cdienger]

Anything that isn't ancient should work. What versions of everything are you running?

Also, is this related to https://support.nagios.com/forum/viewto ... 55#p265755 ? Can we close one thread to avoid duplication?

[jcrespo]

Yes please close the other topic, I duplicated by mistake.
I'll check the versions and post it here ASAP.
Thanks!

[jcrespo]

Nagios deployed version 5.4.1
Nagios Central 5.5.5

I've already followed the tutorial and still not retrieving data.
Server restarted several times with no luck.

[jcrespo]

I've already updated the deployed Nagios to the latest version 5.5.5 and still not working.

Thanks

[cdienger]

Both machines are now at 5.5.5, correct? Make sure that the remote machine can communicate with the central machine by running the following on the remote machine's command line:

curl https://central_xi_ip/nrdp -kv

Have you configured any hosts besides localhost so far? The Global outbound options(Admin > Check Transfers > Outbound Transfers) on the remote server will filter these out.

Also, you would be seeing new hosts and services come in under Admin > Monitoring Config > Unconfigured Objects) and in the /usr/local/nagios/var/nagios.log on the central server you would see entries like "Error: Got host checkresult for 'test', but no such host can be found". Make sure you're checking both of these locations.

[ssax]

In addition to what cdienger posted:

You're not seeing them in Admin > Unconfigured Objects?

Please post your /etc/xinetd.d/nsca file.

Did you restart xinetd after making the changes (if you updated it)?

Code: Select all

service xinetd restart

What is the output of these commands (some of the commands may fail, send me the working ones):

Code: Select all

ss -nlp | grep 5667
netstat -ano | grep 5667
iptables -L
firewall-cmd --list-ports
sestatus

Can you go to http://YOURXISERVER/nrdp/ or https://YOURXISERVER/nrdp/ just fine through a web browser?

[jcrespo]

Thanks for your replies!

I've already made it work, and now I'm feeling so dumb
On remote machines, all the hosts were correctly set up.
I also tried with the direct IP just to check if it was a DNS problem - Not solved
Then Googleing a little I've found the same issue with another user, finish the URL with a simple /

Thanks for your time and patience and hope this helps another user.

[cdienger]

Thanks for the update Glad to hear you found the problem!