Save print server authentication credentials

Question

At my work, I print through a print server.

My /etc/cups.d/client.conf file is:

ServerName the.appropriate.server.location

With this configuration I have to log in with a username and a password every time I have to print (and even twice each time, the first time to get the printer settings, and the second time to effectively print).

I precise that I am usually printing via Evince (since I print PDF files and Evince is my favorite PDF viewer).

• How can I avoid logging in twice?
• Is it possible not to have to log in, even once, at each printing?

Solution

To get rid of the "Authentication Required to Print" dialog this is done by directly editing the file, /etc/cups/printers.conf as follows:

1. Open a terminal window:
2. Stop the cups server: sudo service cups stop
3. Edit the printers.conf file.

sudo gedit /etc/cups/printers.conf

Near the top of file /etc/cups/printers.conf is a line:

AuthInfoRequired username,password

Insert a "#" char in the first column (or, just delete the line):

#AuthInfoRequired username,password

1. Save edited file
2. Restart cups server:

sudo service cups start

This should fix the problem.

Reference

Comments

[Bruno]

Hmmm, I don't think this answers my question. Actually, if I open system-config-printer, I see the printer I use. This printer is on a Print Server which asks for authentication. Thus each time I want to print, I have to authenticate with a username and a password. And each time, I have to authenticate twice since Evince first needs to know the settings of the printer (paper size for instance), and then I re-authenticate when I effectively print. My question is: Is there a way to avoid these authentications, just as with ssh for instance. Thanks anyway!

[desgua]

I'm sorry. This steps worked for me, I don't have to authenticate. I will do some research trying to help you more.

[desgua]

Can you authenticate at command line? I'm thinking you could make an script to do this automatically.

[Bruno]

If I use lpr at command line for instance, I get a prompt to authenticate. Thanks for your time!

[desgua]

I couldn't reproduce your problem here, I will continue to try...

[yossile]

If there are multiple printers the AuthInfoRequired should be commented out for each