Set up a print server using cups

Modify /etc/cups/cupsd.conf:

Listen *:631
Listen /var/run/cups/cups.sock

<Location />
Order Deny,Allow
Allow From 127.0.0.1
Allow From All
</Location>

<Location /printers/ThePrinter>
Order Deny,Allow
Allow From 127.0.0.1
AuthType None
Allow from All
</Location>

The (re)start the cups printing service:

/etc/init.d/cups restart

TroubleShooting

forbidden

Solution: In /etc/cups/cupsd.conf, add under

<Location />
Allow from 192.168.0.1

Do the same for the section /admin.

no printer found

Symptom

No printer is displayed in a KDE application so you cannot select a printer. You are using (e.g.) 192.168.0.1 as print server.

Reason

When CUPS listens to 127.0.0.1 it does not listen to the computer's public IP address.

Solution

In the KDE print dialog, select "System Options" -> "Cups Server" and enter 127.0.0.1 instead of e.g. 192.168.0.1.