How to assign domain hostname to SophosXG?

Question

Hi, 
 coming from a different solution, I've now installed SophosXG on my homelab, everything went fine and I've already moved most of my configuration and linked my AD. The GUI is a LOT more complicated, but previously I had issues fully using my bandwith due to single threaded IPS and now they seems to be solved with Sophos and I'm quite happy with the performance! 
 What I have not been able to figure out is how to access SophosXG with something different than an IP. For example, in the utm I was using before, once I added it to a domain (let's say "domain.com") and assigned a hostname to it (let's say "firewall"), I could access it from https://firewall.domain.com or https://firewall or https://IP_ADDRESS 
 I'd love to duplicate the same situation with SophosXG, but I'm unsure on how to proceed to be able to use something like https://sophosxg.domain.com:4444 / to access my device :( 
 Sorry if it's a stupid question, but I'm still really new to this and I haven't been able to find any related solution on google.

rfcat_vk · Accepted Answer

Hi, 
 you identified the issue, you do not have the XG as a DNS in list. 
 ian

TheBard · Answer

Oh, so I need to put itself as a DNS? 
 I thought that if the PCs aimed at it as their only DNS it would use the other DNS only to resolve addresses it didn't already know. Different UTM/Firewalls sure have wildly different ways to be configured :D 
 I did that and rebooted the DNS service (since I found it at the end, no need to reboot to make sure anymore! yay) and now it appears to be working. 
 
 Thanks for the help!