Re: CUPS on Bullseye and Bookworm
On Sun, 14 May 2023 19:48:07 +0200
john doe <johndoe65534@mail.com> wrote:
> On 5/14/23 19:29, Charles Curley wrote:
> [...]
>
> The below, is what I would try:
>
> - On the non-working client, Are you restricting outbound traffic at
> all
Not that I know of.
> or for testing purposes can you disable the FW?
I shut the firewall down ("systemctl stop firewalld"), ran test pages.
Same non-results, except that system-control-printer now reports:
Idle - Print job canceled at printer.
I tried increasing the logging, which involved stopping and restarting
the cups service. In the process of doing that, the client and server
both managed to forget the printer. I re-installed it. On the server, I
have one instance of the printer, protocol:
hp:/usb/HP_LaserJet_MFP_M232-M237?serial=VNB4J02590
On the non-working client, cups discovered two versions of the printer:
dnssd://HP%20LaserJet%20MFP%20M234sdw%20(C0FB67)._ipp._tcp.local/?uuid=d532fa73-f559-43ca-9f8e-1eef16972345
ipps://HP%20LaserJet%20MFP%20M234sdw%20(C0FB67)._ipps._tcp.local/
I have been testing both and getting the same results.
>
> - How are the working clients connected to the printer (protocol
> wise)?
implicitclass://HP_LaserJet_MFP_M234sdw_C0FB67_/
> - Is the non-working client using that same protocol?
Clearly not.
So I had the working client discover the printer again. It offered the
same two as I have on the non-working client. Both printed test pages.
ipps://HP%20LaserJet%20MFP%20M234sdw%20(C0FB67)._ipps._tcp.local/
dnssd://HP%20LaserJet%20MFP%20M234sdw%20(C0FB67)._ipp._tcp.local/?uuid=d532fa73-f559-43ca-9f8e-1eef16972345
> - If you do not use MDNS and point manually to the server, does it
> work any better?
I tried setting up a printer manually on the non-working client.
ipp://hawk.localdomain/printers/HP_LaserJet_MFP_M232-M237
No test page, and I got:
Processing - The printer may not exist or is unavailable at this time.
However, I checked the CUPS on-line documentation, and did not find any
documentation on how to set up a URI, so it's possible I did that
incorrectly.
I also enabled "port 9100" printing on the printer, and went directly to
it:
socket://hpm234ethernet.localdomain:9100
The printer spun its wheels, reported an error and stopped without
printing. Nothing in the event log.
>
> --
> John Doe
>
--
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