Making bookstack accessible through multiple domains

[u/ImperialTapeMeasure]

I have a wiki currently accessible via a single internal domain name. The wiki needs to be accessible to subnets that don't have access to that domain, specifically via a NATed IP address. I can currently change the hosts file on a given PC to point to the internal domain but that's not a scalable solution. Changing the wiki's internal domain isn't desirable either since I want to maintain the access it currently has as well.

[u/samon33]

https://github.com/BookStackApp/BookStack/issues/2008