Web Setup - URL and access

Hi All,

New here and newly setting up a CENT OS 8 Stream Monitoring Server.

I have been following the standard guide on the Icinga website (https://icinga.com/docs/icinga-web-2/latest/doc/02-Installation/#installation) and has been going ok, I have however gotten to this part of trying to access via the web, I try the following:

http://IPAddressHere/icingaweb2/setup

And get met with “Not found” The requested URL was not found on this server.

I have installed Apache web server and appears to be running via the Chrome Browser > IPAddress

Icinga --version = 2.12.3

Php --version = 7.1.24

At this point I am not sure how to access the GUI of this and not sure if I have missed something or need to do something, any help would be greatly appreciated and I hope I have provided enough details.

Many thanks!

UPDATE:

I rebooted the Server and then retried the http://IPAddressHere/icingaweb2/setup and it now displays the web interface.

Not sure why a reboot was required though, any thoughts?

UPDATE:

I finished the installation, and for the final GUI config section I referred to this helpful guide:

https://www.itzgeek.com/post/how-to-setup-icinga-web-2-on-centos-8-rhel-8