So having moved from a piecemeal Ubuntu server solution to Zentyal for my home server, the one last thing I'm having trouble setting up is printer sharing. There seems to be three ways to do it; via the printers app, on the Zentyal console or via the CUPS webpage. It turns out the correct way to setup a printer for Zentyal to share is via the CUPS route.
This was all well and good, and I eventually worked out how to setup my printer and share it. But I made one schoolboy error and ticked the Kerberos authentication box. When I tried to reconnect to the CUPS webpage all I got was an unauthorised access page and no login box. There was no way for me to get back into the web config to fix the problem. This seems to be a bit of bug that needs addressing but I suppose common sense prevails and not ticking boxes without knowing the outcome is probably the best way forward. We can't wrap everyone in bubblewrap and even us IT guys need to exercise caution at times!
Fortunately it turns out that if you find yourself in this situation, all you need to do is log onto the server and replace the /etc/cups/cupsd.conf file with the default file. If you can't find the default file (like me) then just copy the text from another file or the internet and paste it into your cupsd.conf file.
To save you lots of further hunting, the original cupsd.conf file content can be found on answers.launchpad.net courtesy of the user actionparsnip. Thanks fella!
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