You have limited access to the /admin directory of the web interface of your CUPS server with the following statement in /etc/cups/cupsd.conf: AuthType BasicDigest
AuthClass Group
AuthGroupName sys
Order Deny,Allow
Deny From All
Allow From 127.0.0.1
To allow the cupsadmin user to access the /admin directory when connecting from localhost, how do you create the cupsadmin user and set his password?