How to disable Kerberos / reset CUPS on OS X?

[John A. Murdie]

> dear members,
>
> i have a major problem. i activated kerberos using localhost:631 on my macbook - leopard.
> i donä use kerberos in any way...i know, stupid idea.
> my main problem is, that i am not ableto add or delete a printer since that accident happened. i even can't edit the cupsd.conf file ot set auth type from negotiate back to basic. i always get the error that i am not authorized.
>
> hopefully someone knows how i can fix this.
> thanks in advance.

You need to click the lock on the "Print & Fax" dialogue under "System Preferences" to permit changes (and authenticate as an administrator), then right-click on the (printer list) panel at left and choose "Reset printing system" from the (one-item!) menu that appears.

Incidentally, you'll also have to do this if you press the "Use Default Configuration File" button on the web page "http://localhost:631/admin?op=config-server"; it is apparently the default CUPS (cupsd.conf) configuration file, not the default Apple one.

John A. Murdie