On 4/8/23 02:40, Gareth Evans wrote:
On Sat 8 Apr 2023, at 03:20, gene heskett <ghesk...@shentel.net> wrote:
Greetings all;
Where do I turn on cups debugging so I'll see every bit of traffic
addressed to cups from my local 192.168/xx.yy network?
The problem is: other buster machines on this local network can see and
use the two brother printers just as if the printer was local to that
buster machine.
But no bullseye, debian or armbian can see anything at
localhost:631/printers except the search screen when there are no printers.
These printers are marked as shared in this bullseye machines /etc/cups
files.
There's a new roadblock someplace, I've asked about before. I'd like to
find it.
Buster machines can, other bullseye machines can't.
Thank you.
Cheers, Gene Heskett.
--
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author, 1940)
If we desire respect for the law, we must first make the law respectable.
- Louis D. Brandeis
Genes Web page <http://geneslinuxbox.net:6309/>
Hi Gene,
Not sure if CUPS debugging may be helpful, see eg.
https://sysadminera.com/2020/09/10/linux-how-to-enable-and-capture-cups-debugging-logs/
The most intelligent output I can get from the error_log on one of the
armbian bullseye machines is a garbled attempt to open a pipe (I think)
from that log a snippet is attached. Tail end of a cups restart. Looks
like something in the name resolution is totally fubar to me.
But, I can send ff to the exact entry in client.conf, and it can see all
the shared printers here on this machine. But cups on that machine can't.
But first, I seem to recall you removed avahi and cups-browsed from Bullseye
machines. Is that correct? Do the Buster machines have either or both of
those installed?
avahi and cups-browsed have both been re-installed on that armbian machine.
And its networking continues to work thru a reboot, something I could
not do at the original install.
Then I check this machines error_log which is flooded with thousands of
lines of this from my attempts to get a printer list on the armbian machine:
E [08/Apr/2023:12:25:16 -0400] [Client 18] Returning IPP
server-error-version-not-supported for CUPS-Get-Printers (no URI) from
192.168.71.12.
E [08/Apr/2023:12:25:16 -0400] [Client 18] Returning IPP
server-error-version-not-supported for CUPS-Get-Default (no URI) from
192.168.71.12.
E [08/Apr/2023:12:25:16 -0400] [Client 18] Returning IPP
server-error-version-not-supported for CUPS-Get-Printers (no URI) from
192.168.71.12.
E [08/Apr/2023:12:25:16 -0400] [Client 18] Returning IPP
server-error-version-not-supported for CUPS-Get-Default (no URI) from
192.168.71.12.
E [08/Apr/2023:12:25:16 -0400] [Client 18] Returning IPP
server-error-version-not-supported for CUPS-Get-Printers (no URI) from
192.168.71.12.
So the armbian machine is trying, and its this machine that is rejecting
its attempts. That's progress ;o)>
Whats next?
Thanks Gareth, take care and stay well.
Cheers, Gene Heskett.
--
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author, 1940)
If we desire respect for the law, we must first make the law respectable.
- Louis D. Brandeis
Genes Web page <http://geneslinuxbox.net:6309/>
E [08/Apr/2023:16:37:14 -0400] Unable to open listen socket for address
[v1.::1]:631 - Cannot assign requested address.
I [08/Apr/2023:16:37:14 -0400] Listening to 127.0.0.1:631 on fd 7...
I [08/Apr/2023:16:37:14 -0400] Listening to /run/cups/cups.sock on fd 3...
I [08/Apr/2023:16:37:14 -0400] Resuming new connection processing...
D [08/Apr/2023:16:37:14 -0400] cupsdSetBusyState: newbusy="Not busy",
busy="Active clients"
D [08/Apr/2023:16:37:14 -0400] cupsdAddCert: Adding certificate for PID 0
D [08/Apr/2023:16:37:14 -0400] Discarding unused server-started event...
D [08/Apr/2023:16:37:14 -0400] cupsdSetBusyState: newbusy="Not busy", busy="Not
busy"
D [08/Apr/2023:16:37:15 -0400] Report: clients=0
D [08/Apr/2023:16:37:15 -0400] Report: jobs=0
D [08/Apr/2023:16:37:15 -0400] Report: jobs-active=0
D [08/Apr/2023:16:37:15 -0400] Report: printers=0
D [08/Apr/2023:16:37:15 -0400] Report: stringpool-string-count=334
D [08/Apr/2023:16:37:15 -0400] Report: stringpool-alloc-bytes=5264
D [08/Apr/2023:16:37:15 -0400] Report: stringpool-total-bytes=5696
