Re: Odd question about CUPS
On Mon, 2008-09-08 at 19:42 -0400, Tom Allison wrote:
> I have a cups server that has been working perfectly for several years.
> Recently my Debian and Macbooks (Firefox only) where all upgraded and
> now the printer does not work for the macbooks.
>
> Here's the CUPS error entry:
> cupsdAuthorize: No authentication data provided
>
>
> here's the fun part.
> It works perfectly from MS Word on Mac and OpenOffice on Mac.
> It doesn't work for FireFox, Thunderbird or Preview (Apple PDF).
>
> Because of the OpenOffice and Word I was thinking that this is not a
> problem with the printer configuration and that it might be a problem
> with recent upgrades to FireFox. Except my wife, who did not upgrade
> FireFox has the same problem.
>
> Add to that the fact that the Preview can't print either (not upgraded).
>
> I'm currenlty, because of the error, of the opinion that my Debian
> printer server has taken a turn for the worse.
>
> I have no authentication that I recall adding.
> There is something that might be new - CUPS-Authenticate-Jobs that I'm
> not familiar with.
>
> But if this is server related -- how does OpenOffice and MS Word get
> around this? I'm really in a jamb here because I *need* my printer for
> college.
>
SNIP
What kernel are you running on the print server? I had this issue in
2.6.24-2.6.26-something. In my case it was a kernel bug in the tcp
stack. The work around was to set in /etc/sysctl.conf
net.ipv4.tcp_frto = 0
you can test this by echo 0 >/proc/sys/net/ipv4/frt0
I have no idea if this is the same issue, I am just guessing.
HTH
--
Damon L. Chesser <damon@damtek.com>
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