How to authenticate with CUPS ?

Question

Hello.
At my university there is a print service and it's theoretically possible to send print jobs from home. In order to do this I have to set up a new printer as a 'windows printer via samba'. The problem is, that I have to authenticate, but I simply don't know how to send authentication information using CUPS.
There is a manual from the central computer service of my university. It uses Ubuntu to set up the printer connection and they can authenticate, but I don't know how I can accomplish this with Arch.
Manual (written in german):
http://www.univie.ac.at/ZID/uprint-linux/
Moreover the connection should be secure. Does cups support a secure authentication?
Greetings,
hauntergeist

Answer 1

Ok, I figured out how to send a username and a password via CUPS to authenticate to the printer. It works like this
smb://username:password@workgroup/server/printersharename
smb://username:password@server/printersharename
and can be found here, at the Samba docs.
I went to my university, logged into the wireless network and tested it. I was able to print my first page via u:pring! Hooray! \o/
The problem, that I still can't access http://localhost:631/ remains. Damnit, why does it always redirect me to www.localhost.com, which doesn't exist, when I am in the university's network?!?
The next thing I want to try is to print a test page from my dormitory to prove that I can print via CUPS and VPN.
Security issue: I think that the username and password are sent as clear text to the printer, so sending a print job via the a normal, non-vpn Internet connection to the printer is unsecure.
VPN should be secure, isn't it?
Greetz,
haunted