Ubuntu – Cups admin user and password Saucy

cups-lpdprinting

I can't change settings on my cups printer. He asks me for a username and password i already added for me the usergroup lpadmin . But nothing changes after a restart of cups.
Still asking me for username and password and my user is not working.

Best Answer

I had the same problem.

I seem to have fixed it with the command:

sudo usermod -a -G lpadmin pi

This adds the user name pi to the cups user group lpadmin. You can then use the default user name "pi" and password "raspberry" when prompted.

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Ubuntu – Printer share keeps asking for password and I can’t authenticate from any machine. Why

I have rarely had luck configuring a CIFS-reachable printer within Ubuntu. I've done it, but I don't do it every day: it's possible, with subtleties.

However, I've been able to share printers via http and https routes. The quick description of this method:

    [US] (= Ubuntu "Server")    example IP = 10.0.0.1
    [WC] (= Windows "Client")

On [US], install a printer, ensuring that it is "Shared" via the GUI (e.g. the system-config-printer interface) or manipulation of /etc/cups/ files.
On [WC], use a web browser and point to CUPS on [US].

e.g. http://10.0.0.1:631/

This should show you the web interface provided by CUPS. "CUPS is the standards-based, open source printing system ..." This also serves as a test to make sure that the machines can even talk, and that you don't have a more basic problem (e.g. firewall) to solve.
The upper-right tab on this web page is a link to the Printers list.
Right-click-and-copy the URL to the printer in question, and you can paste that into the Windows "Add Printer Wizard" interface for a network printer.

As asked, this should solve the authentication issue by bypassing Samba (CIFS). However, note that this method allows anyone on your local network to print to the shared printer, and it relies on a stable network IP address for [US].

It is also possible to restrict through authentication who can print, but that is for a different question.

Ubuntu – Cups is always asking for password when printing on a certain printer

Since you say it's only one printer which is showing this behaviour, the error is likely to be in /etc/cups/printers.conf.

Check the authorization entry for the printer which is asking for passwords.

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Ubuntu – Printer share keeps asking for password and I can’t authenticate from any machine. Why

Ubuntu – Cups is always asking for password when printing on a certain printer

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