Printer Sharing with Linux clients

When I first installed open SuSE 10.1, I tried to add a printer to CUPS using the web interface by pointing my web browser at http://localhost:631/admin. However, it insisted on asking me for a username and password, and neither my root password nor my personal one were accepted. Looking in the CUPS error log (/var/log/cups/error_log) I saw that it was complaining that there was no such file "/etc/cups/passwd.md5".

To fix this, I first added a "sys" group and "root" user to the system as follows:

(as root): % lppasswd -a -g sys root

And then added a user account:

(as root): % lppasswd -a smith

And this seemed to work.