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Thread: HOWTO: Setup A Headless Ubunutu CUPS Print-Server

  1. #1
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    HOWTO: Setup A Headless Ubunutu CUPS Print-Server

    This explains how to set up a headless Ubuntu CUPS print-server which allows printing, and can be administered, over a network (without having to install the gui). This is for Ubuntu 6.06 or 6.10.

    I found the following a useful reference:
    /usr/share/doc/cupsys/README.Debian.gz
    (only available after installing cupsys)


    Set Up The Server

    Install Ubuntu Server
    Install from the "Alternative" CD and select Server Installation

    Perform an update

    apt-get update
    apt-get upgrade



    Install cupsys 1.2 and openssh-server
    These are available from the CD, so no need to add any repositories. Eg;

    apt-get install cupsys openssh-server

    You can now ssh in and could do the rest remotely.


    Allow remote administration of CUPS
    By default the cups server only allows local access and administration. Edit the cups config file to allow us to browse the print-sever remotely.

    In Ubuntu 6.10 with cupsys 1.2.4 edit: /etc/cups/cupsd.conf

    In Ubuntu 6.06 with cupsys 1.2.2 edit: /etc/cups/cups.d/browse.conf
    (This file is then included in cupsd.conf)


    Change: BrowseAllow @LOCAL
    to: BrowseAllow all

    Similarly, in the blocks:

    <Location /> , <Location /admin> and <Location /admin/conf>

    Change from: Allow localhost
    to: Allow all


    Set it to listen for connections from other machines
    In the config file:

    change: Listen localhost:631
    to: Listen 631




    Set CUPS so it doesn't try to use SSL (the default setting)
    In the config file:

    /etc/cups/cupsd.conf

    Add the line:

    DefaultEncryption Never

    This should avoid the error: 426 - Upgrade Required when using the CUPS web interface.


    Allow CUPS to read the password file
    To do admin tasks remotely using the web interface, it will ask you for a password. In order to check this password CUPS needs to be able to read the password shadow file. To do this 'cupsys' needs to be a member of the group 'shadow'.

    adduser cupsys shadow


    Check the print-server's name is correctly known on the network
    On our network we have a server with a list of host names, which needed updating. On our system this meant using the IPCop web interface and going to: Services > Edit Hosts, and checking that the name corresponding to the print-server's IP address was correct.


    You should now be able administer CUPS through the web interface from any machine on the network(!). Use the print-server's name or IP address and port 631. Eg:

    http://print-server-name.networkname:631 or: 192.168.0.20:631

    You can then view jobs, add and manage printers etc.


    Install some good drivers
    Gutenprint (formerly known as gimp-print) includes a lot of recomended drivers, including the ones that we required for our Epson printers.

    apt-get install cupsys-driver-gutenprint

    Now, when you go through the Add Printer process there will be far more drivers available, hopefully including the recomended ones which actually work.


    Add the Printers
    Connect the printers to the print-server and use the web interface to add them.


    On The Client Workstations

    Allow network printing

    Goto: System > Administration > Printing
    then goto: Global Settings > Detect LAN Printers, and make sure it is ticked.


    Note: Doing the above changes a line in the config file to:


    Browsing On

    In Ubuntu 6.10 with cupsys 1.2.4 this line appears directly in /etc/cups/cupsd.conf
    In Ubuntu 6.06 with cupsys 1.2.2 this line is in the file /etc/cups/cups.d/browse.conf, which is then included in cupsd.conf.


    Specify the CUPS server
    To make the workstation pick up the printers published by our print server we have to tell it the CUPS server.
    If it does not already exist, make a file:

    /etc/cups/client.conf

    and add the line:

    ServerName 192.168.0.20

    substituting your printserver's IP address or name.

    Notes: We shouldn't really have to do this. If the printers are added using the Ubuntu GUI Printing Admin window they simply appear on all the other machines, without us specifying a print server.
    However, we wanted to run a headless print server without installing the gui, so we add them through the CUPS web interface. When we do this we have to specify the CUPS server.
    The file client.conf may exist as a complete config file on some older versions (cupsys 1.1 ?).


    Acknowledgement

    Thanks to ethridgt for the post:
    Howto: configure cups on Ubuntu Server from command line
    http://www.ubuntuforums.org/showthread.php?t=240282
    Last edited by metalhippyrich; February 21st, 2007 at 12:32 PM. Reason: To make it slghtly clearer.

  2. #2
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    Re: HOWTO: Setup A Headless Ubunutu CUPS Print-Server

    I found this tutorial confusing. misleading, out-dated with current CUPS packages and conf files and the formatting was HARD to read. Please work on touching up this tutorial by using [ QUOTE] and [/ QUOTE] tags and using more seperated headers.

    The client.conf, cups.d/browse.conf & cups.d/ports.conf are in seperate files from cupsd.conf and I'm using CUPS 1.2.2
    Last edited by altonbr; December 15th, 2006 at 09:05 PM.

  3. #3
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    Re: HOWTO: Setup A Headless Ubunutu CUPS Print-Server

    This howto worked fine for me.

    (until my server decided to choke and need a new powersupply before it finished installing gutenprint drivers (tested using standard drivers first, so it did work fine))
    Using ubuntu offline?
    Want to install new programs?
    Check out wubdepends
    If Stupidity got us into this mess,
    then why can’t it get us out?

  4. #4
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    Re: HOWTO: Setup A Headless Ubunutu CUPS Print-Server

    Sorry you found it confusing, altonbr. I have now made it as clear as I possibly can. It is definitely upto date.
    In Ubuntu 6.06 browse.conf & ports.conf are indeed in seperate files, but in 6.10 it's all just in cupsd.conf, as the notes in the howto explain.

  5. #5
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    Re: HOWTO: Setup A Headless Ubunutu CUPS Print-Server

    Well I guess everyone's entitled to their opinion,,, I actually loved the tutorial, it worked perfectly, was direct, informative and to the point. I hope you continue to contribute and I look forward to your future posts!!

  6. #6
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    Re: HOWTO: Setup A Headless Ubunutu CUPS Print-Server

    This tutorial worked wonderfully. Thanks...

  7. #7
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    Re: HOWTO: Setup A Headless Ubunutu CUPS Print-Server

    Quote Originally Posted by metalhippyrich View Post
    Specify the CUPS server
    To make the workstation pick up the printers published by our print server we have to tell it the CUPS server.
    If it does not already exist, make a file:

    /etc/cups/client.conf

    and add the line:

    ServerName 192.168.0.20

    substituting your printserver's IP address or name.
    that was my missing link. had everything figured out except that. thank you so much.

  8. #8
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    Ubuntu 12.10 Quantal Quetzal

    Re: HOWTO: Setup A Headless Ubunutu CUPS Print-Server

    I have a real hard time to find the correct uri with my printer

    I got an own kernel and somehow i think i disabled the printer-ports. and now i cannot find where its enabled again. and i cant find where the right uri is

    Examples:

    http://hostname:631/ipp/
    http://hostname:631/ipp/port1

    ipp://hostname/ipp/
    ipp://hostname/ipp/port1

    lpd://hostname/queue

    socket://hostname
    socket://hostname:9100

  9. #9
    Join Date
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    Re: HOWTO: Setup A Headless Ubunutu CUPS Print-Server

    I registered on ubuntu forums just so I could say that this worked perfect for me on my headless ubuntu 6.06 server. Thanks, metalhippyrich

  10. #10
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    Re: HOWTO: Setup A Headless Ubunutu CUPS Print-Server

    I'm having a real hard time setting up printing, and I stumbled in to this thread. I wonder whether it contains the answer to my problem, but as I'm a nervous type I wanted to consult before banging my head against it.

    Here is the problem: I have a small home 4 PC network (win for the kids to play, ubuntu for work) and a brother laser printer, model hl1230. The printer is attached to a generic 'print server' magic box that always worked fine under win, and is attached at IP 192.168.0.2 All machines on the network can see the admin interface, so it connects. Installing the printer via CUPS and following as best I can all of the other instructions I can find on the forum, I can get CUPS to tell me it sees the printer, and to accept print jobs- but which remain permanently in the queue. I think CUPS isn't telling me the truth when it says it's installed everything.

    Should I be treating my magic box as if it were a server, ie another PC, in the terms of this HOWTO? I'm running Feisty
    Last edited by ginestre; May 24th, 2007 at 08:10 AM. Reason: spelling

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