Package: apparmor Version: 2.13.2-10 Followup-For: Bug #968387
With the printer found and printing not functional: # tail /var/log/cups/error_log E [20/Aug/2020:16:33:13 +0200] Unable to open listen socket for address [v1.::1]:631 - Permission denied. E [20/Aug/2020:16:33:13 +0200] Unable to open listen socket for address 127.0.0.1:631 - Permission denied. E [20/Aug/2020:16:35:26 +0200] [Job 34] Job stopped because the scheduler could not create the side-channel pipes. # journalctl -kaf --no-hostname | grep -w 'apparmor="DENIED"' ago 20 16:35:49 kernel: audit: type=1400 audit(1597934149.904:2054): apparmor="DENIED" operation="create" profile="/usr/sbin/cups-browsed" pid=825 comm="cups-browsed" family="unix" sock_type="stream" protocol=0 requested_mask="create" denied_mask="create" addr=none I cannot recreate the other case where the printer was not found at all. This is not related to lxc (this machine has no containers yet) except that it recommends apparmor.
