[TriLUG] print queues work locally, but not over the network <SOLVED>

[Steve Litt]

Hi all,

The root cause was DEFECTIVE ADMINISTRATOR. My Mandriva 2007 firewall was set 
up not to pass CUPS server information. Once I set the Mandriva 2007 firewall 
to pass CUPS information, client computers printed as they should.

Thanks to everyone who gave suggestions. Those suggestions forced me into a 
rational thought mode, allowing me to narrow down to the root cause.

SteveT

On Monday 11 December 2006 10:30, Steve Litt wrote:
> More info on my CUPS problem. The original symptom description is at the
> bottom of this email. I found out where the print job is getting "stuck" on
> the client, whose hostname is rena. The computer physically connected to
> the printer is at 192.168.100.2 and is called mydesk. Here it is:
>
> [root at rena ~]# ps ax | grep cups
>  6552 ?        Ss     0:01 cupsd
> 11692 pts/2    S+     0:00 grep cups
> [root at rena ~]# lpr -P lp_dark test.txt
> [root at rena ~]# ps ax | grep cups
>  6552 ?        Ss     0:01 cupsd
> 11695 ?        S      0:00 ipp://192.168.100.2:631/printers/lp_dark 11 root
> test.txt 1 job-sheets=none,none job-priority=50
> job-hold-until=no-hold /var/spool/cups/d00011-001
> 11697 pts/2    R+     0:00 grep cups
> [root at rena ~]# cat /var/spool/cups/d00011-001
> steve was here
> and now is gone
> but left his name
> to carry on.
> [root at rena ~]#
>
> In the preceding, the text of /var/spool/cups/d00011-001 exactly matches
> test.txt -- it's exactly what I printed.
>
> To me, the command ipp://192.168.100.2:631/printers/lp_dark looks malformed
> -- not an executable. The spool file gets stuck as
> /var/spool/cups/d00011-001. Restarting cups on rena (the client) blows off
> the job and the spool file.
>
> So basically, I've found where the print job gets stuck (never gets off the
> client computer) but I don't know enough about CUPS to interpret that or
> figure out the next diagnostic test.
>
> Thanks
>
> SteveT
>
> On Monday 11 December 2006 00:34, Steve Litt wrote:
> > Hi all,
> >
> > My computer has an HP4050 hooked to its parallel port. Most printers in
> > the house run Mandriva 2006 and access my printer via the network. I
> > upgraded my computer to Mandriva 2007, and all of a sudden none of the
> > other computers can print to my printer. It (in all its various
> > configurations such as lp, lp_dark, lp_duplex etc) shows up on all the
> > other Mandriva machines, but when you print to it on those printers it
> > "vanishes into thin air". Nothing prints on my printer, and the lpq -P
> > lp_dark command says nothing's queued on their computer or on mine. I
> > can't figure out what happened to the print job. The same print job works
> > perfectly if I sftp the file to my computer and then print it from my
> > computer.
> >
> > The cupsd daemon is running on all the computers, and lp_dark (and the
> > others) show up at http://localhost:631 on all the computers.
> >
> > This seemed to start when I upgraded my computer from Mandriva 2006 to
> > Mandriva 2007.
> >
> > What are some of the steps I'd take to troubleshoot this problem? My wife
> > and kids have started a fire under a 1000 gallon pot, and I'm scared I'll
> > get boiled if I don't get the family's printers printing.
> >
> > Thanks
> >
> > SteveT
> >
> > Steve Litt
> > Author:
> >    * Universal Troubleshooting Process courseware
> >    * Troubleshooting Techniques of the Successful Technologist
> >    * Manager's Guide to Technical Troubleshooting
> >    * Twenty Eight Tales of Troubleshooting
> >    * Rapid Learning: Secret Weapon of the Successful Technologist
> >
> > http://www.troubleshooters.com/bookstore
> > http://www.troubleshooters.com/utp/tcourses.htm