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/ 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? What are the exact models of the Brother printers "missing" from Bullseye systems? Do other printers appear on Bullseye systems? Thanks, Gareth
