On Thu 12 Oct 2017 at 14:50:20 +0200, Dominik George wrote: > > Does either 127.0.0.1 or 127.0.1.1 in /etc/hosts map to your FQDN? > > The base host name of the system is resolvable to its FQDN and > `hostname -f` returns the correct FQDN. > > Yet, as reported, CUPS only accepts the base name as reported by > `hostname`.
CUPS' behaviour is intentional. It rejects requests addressed to the system's FQDN host which are received over the local loopback interface. 127.0.1.1 uses the loopback interface. https://lists.cups.org/pipermail/cups-devel/2009-May/009532.html Cheers, Brian.