Re: [Fwd: Re: No printing at all!]
On (27/02/04 13:00), Wolfgang Pfeiffer wrote:
> 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
Hi Wolfgang
Thanks for this although I was responding to the OP who was having
trouble setting up printing. Using the browser, as I understand it,
you are only configuring cups as the administrator if you login as root.
I wouldn't imagine that you could inadvertantly do anything really
dangerous from the browser except possibly screw up cups.
However, I do find it a pain to login as root just for this and so I
will add this to my growing list of tasks to conquer ;)
Regards
Clive
--
http://www.clivemenzies.co.uk
strategies for business
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