Cannot print on a networked iMAC

[Helge Blischke]

Burnie West wrote:
> I've been able to print using a networked iMAC as a print server for several months; suddenly last week after taking the iMAC off the network for a few days and then reconnecting it, I could not. My Linux (Fedora 9) box exhibits the printer on its localhost:631 page, and it is identified as "published". The iMAC localhost:631 page allows to publish and unpublish the printer. The CUPS daemon is running on the Linux box - I've stopped and started it, and restarted it, a couple of times.
> 
> The iMAC has a (zero-size) file in /private/var/run/cupsd - which I believe asserts that the CUPS daemon is running on the iMAC - but on the Linux box the System->Administration->Printing window displays the CUPS server error message 'server-error-service-unavailable' when an iMAC served printer is selected. I've rebooted the iMAC, the Linux box, and the router separately and all in sequence.
> 
> My Linksys WBN350 router shows both machines properly identified (by IP address,but not by name) in its DHCP tables and its internet access policy is the default (allow everything on the LAN).
> 
> Both machines have reasonable cupsd.conf files. I edited them both to allow both machines in the <LOCATION /> field. I believe the first few lines in these files tell the story (pardon my verbosity):
> ====Linux====
> LogLevel debug
> SystemGroup sys root
> # Allow remote access
> Port 631
> Listen /var/run/cups/cups.sock
> # Enable printer sharing and shared printers.
> Browsing On
> BrowseOrder allow,deny
> # (Change '@LOCAL' to 'ALL' if using directed broadcasts from another subnet.)
> BrowseAllow @LOCAL
> BrowseAddress @LOCAL
> DefaultAuthType Basic
> <Location />
>   # Allow shared printing...
>   Order allow,deny
>   Allow localhost
>   Allow 192.168.1.100
>   Allow 192.168.1.101
> </Location>
> =====iMAC=====
> LogLevel info
> MaxCopies 10000
> ConfigFilePerm 0644
> # Allow remote access
> Port 631
> Listen /private/var/run/cupsd
> # Enable printer sharing and shared printers.
> Browsing On
> BrowseOrder allow,deny
> BrowseAllow all
> BrowseAddress @LOCAL
> BrowseShortNames No
> BrowseInterval 30
> ImplicitClasses Off
> SystemGroup lp,admin
> RootCertDuration 43200
> <Location />
>   Deny From All
>   Allow From 127.0.0.1
>   Allow From 192.168.1.100
>   Allow From 192.168.1.101
>   Allow From @LOCAL
>   # Allow shared printing and remote administration...
>   Order allow,deny
>   Allow @LOCAL
> </Location>
> 
> I don't know where else to look :-(

That file /private/var/run/cupsd should contain the PID of the
running cupsd (at least this is common on all Linuxes I know)
and thuns not having zero size.

I'm not familiar with MacOX X, but I'd suggest to - formally -
stop CUPS, delete the said file, and newly activate CUPS -
and try out if it then works correctly.

Helge


-- 
Helge Blischke
Softwareentwicklung

H.Blischke at acm.org