NRDP checks not reporting to main Nagios XI install

[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.

[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?

[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?

[Box293]

Lets start off with some screenshots of how the sending server is configured and how the receiving server is configured.

[benh]

Box, I think its fairly straight forward.

Inbound-config.png

Outbound-config.png

Outbound-config-2.png

[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.

[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.

[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

[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.

[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.