On Tue 26 Sep 2017 at 12:08:02 +0000, Curt wrote: > On 2017-09-26, Brian <a...@cityscape.co.uk> wrote: > > On Tue 26 Sep 2017 at 00:15:31 -0500, Kent West wrote: > > > >> So when I go to select a printer in Firefox, there are many autodiscovered > >> printers to choose from. I don't want any of them in my list. How do I turn > >> this off? > > > > See later. But first stop or purge cups-browsed. > > > >> I found the two "browse" options in /etc/cups/cupsd.conf, but they make no > >> difference. I found /etc/cups/cups-browsed, but killing that daemon makes > >> no difference. In fact, killing CUPS altogether makes no difference (except > >> my desired printer then goes away), so obviously this isn't a CUPS thing. > > > > Correct. > > > >> Then I discovered Avahi (and had to go into learning mode - apparently this > >> is also known as "Bonjour" and "Rendevous" and "ZeroConf", depending on OS > >> and version and situation). The most obvious tweaks in > >> /"etc/avahi/avahi-daemon.conf", the two "disable-publishing..." options, > >> don't do anything. > > > > Indeed not. They affect publishing, not discovery. > > > >> But I can "systemctl disable avahi-daemon" altogether to get rid of the > >> unwanted printers. But that seems like overkill, and disables all of > >> Avahi's function (I was pleased to learn I can find non-Windows clients on > >> our mostly-Windows-oriented network using Avahi, just by adding ".local" to > >> the hostname - ex. "ping bigserver" fails, but "ping bigserver.local" gets > >> replies - sweet!). > > > > Without avahi-daemon running Firefox cannot discover printers or print > > servers on the network from their DNS-SD broadcasts. > > > >> So, any one know how to tell Avahi to not publish found printers to > >> Firefox's print dialog? > > > > All GTK applications can use avahi-daemon for printer discovery. It is > > GTK you want to control, not avahi-daemon. gtk-print-backends is the > > relevant property to use. Its default value is "file,cups". > > > > I think Firefox uses GTK3. In /etc/gtk-3.0 or ~/.gtk-3.0 you want to > > create the file settings.ini and see what the contents > > > > [Settings] > > gtk-print-backends=file > > > > do for you. (The file name and format is different for GTK2). > > > > Some anonymous joe on the internet said you can edit the [server] > section of the /etc/avahi/avahi-daemon.conf file and uncomment the > 'enable-dbus=yes' line, changing that line to 'enable-dbus=no' and this > will disable printer discovery (while retaining dns functionality). > > Whether this works or not, or how perilously or ridiculously close this > edit is to just turning the damned avahi thing off altogether, I do not > know.
I tried this and the GTK print dialog took ages to come up. I'd also be concerned about other possible knock-on effects. Why "damned avahi thing..."? You make it sound evil. -- Brian.
