IIS Manager – How to Browse a Website Locally on Windows Server 2016

The name resolution is handled through DNS so if you need the host to resolve to a different machine you would need to modify DNS. If you only want it to resolve differently for your test machine you could modify the \windows\system32\drivers\etc\hosts file on the machine you'll be browsing from.

Note 1: the typical location for hosts is under \windows, but you should check %SystemRoot% for the locaiton on your system.

Note 2: your AV program may complain if you try to edit this file.

You would have to modify your DNS server to change DNS. I can't tell you whether it is a local or internet based DNS.

One thing you can do is to create a friendly hostname in IIS for the site (mysite [without the .com] fro example) and then make an entry in your hosts file (mysite 127.0.0.1)