Page 1 of 3
NRDP checks not reporting to main Nagios XI install
Posted: Tue Feb 04, 2020 8:02 pm
by benh
We have a central nagiosXI install running(5.5.8) And a remote NagiosXI(5.6.10) running.
The remote one is working fine, and when it was being built in thye main office is was reporting back to the central one. But now that it's deplyed no unconfogured objects are showing up at all even though it's fully populated.
Currently configured to use CRDP and there is no blocking between the subnets of the two amchines, can ping each other as well without problem.
Any help would be greatly appreciated.
Re: NRDP checks not reporting to main Nagios XI install
Posted: Tue Feb 04, 2020 8:20 pm
by Box293
Have you opened the firewall ports between the two machines? NRDP is going to be using port 80 or 443 depending on how you configure it.
Can you post the configs of your receiving server and sending server so we can compare?
Re: NRDP checks not reporting to main Nagios XI install
Posted: Tue Feb 04, 2020 8:27 pm
by benh
All ports are open, my network team configured no restrictions at all between the two.
And which/how configs do you want?

The NRDP ones?
Re: NRDP checks not reporting to main Nagios XI install
Posted: Wed Feb 05, 2020 5:53 pm
by Box293
Lets start off with some screenshots of how the sending server is configured and how the receiving server is configured.
Re: NRDP checks not reporting to main Nagios XI install
Posted: Wed Feb 05, 2020 7:34 pm
by benh
Box, I think its fairly straight forward.
Inbound-config.png
Outbound-config.png
Outbound-config-2.png
Re: NRDP checks not reporting to main Nagios XI install
Posted: Wed Feb 05, 2020 7:46 pm
by Box293
So it looks like you're using HTTPS so I can assume port 443 is being used. Lets test to see if the sending XI server can connect to the port on the receiving XI server. Please execute this command on your sending XI server:
Code: Select all
nmap receiving_xi_server_address -Pn -p 443
Please replace
receiving_xi_server_address with the address from the settings on your sending server. This is the text that you've marked out in your screenshot.
Please post the output.
Re: NRDP checks not reporting to main Nagios XI install
Posted: Wed Feb 05, 2020 7:51 pm
by benh
[root@localhost ~]# nmap <suppressed> -Pn - 443
Starting Nmap 6.47 (
http://nmap.org ) at 2020-02-06 10:50 AEST
Failed to resolve "-".
setup_target: failed to determine route to 443 (0.0.1.187)
Nmap scan report for <suppressed>
Host is up (0.0018s latency).
Not shown: 997 filtered ports
PORT STATE SERVICE
22/tcp open ssh
80/tcp open http
443/tcp open https
Nmap done: 1 IP address (1 host up) scanned in 4.92 seconds
Obviously I took out the IP.
Re: NRDP checks not reporting to main Nagios XI install
Posted: Thu Feb 06, 2020 4:59 pm
by Box293
It looks like your command is missing the
-p argument and hence the first few errors. Can you run the command again please:
Code: Select all
nmap receiving_xi_server_address -Pn -p 443
Re: NRDP checks not reporting to main Nagios XI install
Posted: Thu Feb 06, 2020 5:01 pm
by Box293
Also in your screenshot I cannot tell if you are using an IP Address or a DNS record. It's important that receiving_xi_server_address matches what is in your settings box.
Re: NRDP checks not reporting to main Nagios XI install
Posted: Thu Feb 06, 2020 11:19 pm
by benh
Apologies for both the slow response and the mistake.
See below for the output again.
[root@localhost ~]# nmap <IP Suppressed> -Pn -p 443
Starting Nmap 6.47 (
http://nmap.org ) at 2020-02-07 14:17 AEST
Nmap scan report for <IP Suppressed>
Host is up (0.0058s latency).
PORT STATE SERVICE
443/tcp open https
Nmap done: 1 IP address (1 host up) scanned in 0.22 seconds
I'm using IP address and it does indeed match the settings.