Comment 4 for bug 1657652

I missed this bug being created. John: I don't think I realized you could register an arbitrary controller via its DNS name. That is probably fine for CI applications, since re-using the username and password in that case is acceptable. Being able to register by IP would be a good feature as well, since the CI system might not always have a resolvable name, but I don't think it's as critical.

Perhaps just some better documentation around this feature would be enough.