Local network CUPS errors

If you are failing to connect to a local CUPS server and seeing something like this:

400 Bad Request

You probably just need to add this to the main section of your /etc/cups/cupsd.conf file --

ServerAlias *

That tells the CUPS http server to ignore what host name the "remote" system is using for the CUPS server.

Don't forget to restart CUPS after you change the file.