I used to have lots of hassle around reserving portions of the HTTP namespace so that ( e.g. ) WCF services can listen on them. I remember writing about it here in the past.

In more recent times, I avoid all that stuff altogether and just use a simple netsh command and this is a reminder to myself of how to do that because I forget every time so here’s the link for “next time”;

Configuring HTTP and HTTPS on MSDN