[X2Go-Dev] Printing, x2go, Vservers

John A. Sullivan III jsullivan at opensourcedevel.com
Sat Sep 15 20:14:44 CEST 2012


On Sat, 2012-09-15 at 13:49 -0400, senrabdet at aol.com wrote:
> Hi All:
> 
> We are trying to get x2go printing to work on a Debian Squeeze Vserver
> guest.
> 
> 1) First, tested without Vserver - set up an x2go virtual printer on a
> box running x2go server; connected via an x2go client and could print
> (used steps from
> http://www.x2go.org/doku.php/wiki:components:printing).
> 
> 2) On another box running Vserver, set up Vserver Guest and replicated
> our steps to set up x2go printing including a virtual x2go printer -
> used http://linux-vserver.org/Problematic_Programs#Cups_print_server
> which entails as we understand it disabling cups listening to loopback
> 127.0.0.1 on the host so it doesn't conflict with the Vserver,
> 
> We also adding entries to ccapabilities (SECURE_MOUNT,
> SECURE_REMOUNT,BINARY_MOUNT) based on some other posts.
> 
> When we connect via X2go from "client" netbook to Vserver guest, and
> try to print, we can see the x2go virtual printer and printing appears
> to happen, but fails (both trying settings to print directly to a
> printer and the pdf pop approach using evince).
> 
> We're not sure how to troubleshoot this...we get an error in the
> Vserver cups error log "/var/log/cups/error_log" of "Unable to open
> listen socket for address ::1:631 - Address family not supported by
> protocol.) that we think is generated by the printing attempt..
> 
> This would seem to suggest some problem with sockets(?)...
> 
> Suggestions appreciated!
> 
> Any suggestions appreciated. 
> 
> PS: on the same Vserver guest, from x2go on the netbook client we can
> print to a network printer on the local Vserver guest/host network.
> But not the virtual x2go virtual printer. 
<snip>
Does the CUPS server have rights to write to the client's spool
directory? Good luck - John




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