Firewall ports to open for Nagios XI?

[mregis]

I am unable to connect to Nagios XI web admin page externally. I have opened up port 80 on my firewall and I hit the landing login page for Nagios XI but I am unable to continue after that.
What ports need to be opened my firewall to access Nagios from external source.

Thanks.

[mmestnik]

TCP port 443.
??

[mregis]

What ports on my firewall should i be opening, for all functionality (e.g. maps, etc) to work? I am trying to access the nagios web admin page from outside my network (internet). The pages seem to be loading except for when i click on the "Map" link. It seems to not work and the page just gets stuck with "loading..."
I have open port 80, 443 and 12489.
Is there any other custom ports that Nagios requires opened?

Thanks in advance.

M

[mmestnik]

Check the logs on your firewall and see what it's blocking for you, perhaps it's not even the firewall you think it is.