[Fwd: Re: No printing at all!]

From: Wolfgang Pfeiffer (roto_at_gmx.net)
Date: 02/27/04

  • Next message: Richard Lyons: "Re: openoffice" 
    To: Clive Menzies <clive@clivemenzies.co.uk>, debian-user-list <debian-user@lists.debian.org>
Date: Fri, 27 Feb 2004 13:00:22 +0100

    Hi Clive,

    I sent the message below more than 12 hours ago to the debian-user list:
    I didn't see it there
    until now, so I'll try to send it again.

    BTW: I definitely don't know whether my suggestions below will work in a
    network. I tested them, as I'll write below, only on a single machine
    where they work ...

    HTH

    Nice week-end.

    Best Regards
    Wolfgang

    -----Forwarded Message-----
    From: Wolfgang Pfeiffer <roto@gmx.net>
    To: debian-user-list <debian-user@lists.debian.org>
    Subject: Re: No printing at all!
    Date: Thu, 26 Feb 2004 22:27:05 +0100

    On Wed, 2004-02-25 at 19:18, Clive Menzies wrote:
    > On (25/02/04 17:23), Alisdair wrote:
    > > After using Mandrake and Knoppix over the last couple of years I have finally
    > > managed to install a working Debian system :-), and everything seems to be
    > > fine except the printing :-(
    > >
    > > I have looked through several forums, and done my best to rtfm but haven't
    > > come up with anything that has made a difference. I suspect it is something
    > > very basic but...
    > >
    > > I'm afraid I am at a complete loss. lp seems okay. CUPS seems to be properly
    > > installed. In fact I have installed it and gs several times, but there is no
    > > output at all, and no indication that my HP Laserjet 5L (using the hpijs ppd)
    > > is even being told to do anything, although CUPS detects the printer is
    > > present on /dev/lp0.
    > >
    > > Below is the contents of:
    > > 1. lpinfo -v
    > > 2. /var/log/cups/error.log
    > > 3. /etc/cups/cupsd.conf
    > >
    > > If anyone can help me get this sorted out I would be VERY grateful.
    > >
    > > Regards, Alisdair.
    > I am no expert but have wrestled (successfully in time) with printing both
    > locally and via the network. I found adminstering printers via a web
    > browser is fairly straightforward. URL http://localhost:631/admin
    > login as root and you should get a reasonable idea of what is going on.

    Hi Clive

    I'd always try to do things as much and as often as possible as
    non-root: Some time ago I removed my complete .mozilla files by hitting
    the Enter key accidentally, and a bit too early:
    rm -rf .mozilla/
    Was a nice moment to realise, you'll certainly believe .. (actually I
    simply wanted to remove the stuff in the Mozilla Cache ... )

    I'd think it means shouting for problems if someone tries to become root
    unnecessarily. Provided I understand you correctly you suggest to log
    out of your non-root and user X to enter an X-session as root: IIRC I
    even set Gnome to forbid root to start an X-session here: I know how
    fast I make mistakes on X .... :)

    Here's the URL for CUPS where the documentation for authentication
    stuff starts, IINM:

    <http://localhost:631/sam.html#AuthClass>

    And here's a
    /etc/cups/cupsd.conf
    that allows only users in group foo, on one machine with several users,
    to manage the CUPS printing system, and only after he or she provided
    their username/passwd ...

    [ /etc/groups file ....
    adduser <user-login-name> foo
    ... login ... logout .. IIRC ]

    I didn't test so far whether this also works on a network connected to
    some printer, but I'd believe it could work ... not being sure on that
    ..

    At least here on
    http://localhost:631
    on a single machine with several users: after some initial tests it
    seems to work:

    Here's the corresponding cupsd.conf:
    ---------------------------
    LogLevel debug
    Printcap /var/run/cups/printcap
    <Location />
    Order Deny,Allow
    Deny From All
    Allow From 127.0.0.1
    </Location>
    <Location /admin>
    AuthType Basic
    AuthClass Group
    AuthGroupName foo
    Order Deny,Allow
    Deny From All
    Allow From 127.0.0.1
    </Location>
    ----------------------------------

    So with this last cupsd.conf it seems you don't need to be root to
    change your CUPS settings and you can decide who of the users on a
    machine will be able to to change these settings ...

    I swear I love this crap, at least some times ..... :)

    PS:
    I'd
    cp -r /etc/cups/ /path/to/other/directory/cups.working
    before changing some printer settings ... :)

    HTH, too ...

    Best Regards

    Wolfgang

    >
    > HTH
    >
    > Clive
    > --
    > http://www.clivemenzies.co.uk
    > strategies for business 

    -- 
Profile, Links: http://profiles.yahoo.com/wolfgangpfeiffer
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