Redirect

I’m technically using MU, but the problem I’m having isn’t related to MU.

For the life of me, I can’t figure out how to do this. I have an internal webserver that people can access via two ways, IP address of the server or its computer name. The problem with people accessing it via computer name is that MU thinks someone wants to create a brand new blog.

How do I do it so that when someone does https://computername/ it will permanent redirect to https://ipaddress/. I’ve tried Redirect 301 and that didn’t work.