Comment 0 for bug 1989791

$ cat /etc/hosts
1.2.3.4 hostname.domainname hostname

$ cat /etc/hostname
hostname

$ hostname
hostname

$ hostname -s
hostname

$ hostname -f
hostname.domainname

nova-compute will log:
2022-09-15 18:45:48.608 7 ERROR nova.virt.libvirt.host [-] Connection to libvirt failed: authentication failed: authentication failed: libvirt.libvirtError: authentication failed: authentication failed

(fun fact: the error message says "authentication failed" 4 times - 4 times! - must be a serious violation ;-) )

libvirtd will log:
2022-09-15 16:45:48.606+0000: 3900339: error : virNetSASLSessionServerStep:594 : authentication failed: Failed to start SASL negotiation: -20 (SASL(-13): user not found: unable to canonify user and get auxprops)
2022-09-15 16:45:48.606+0000: 3900339: error : remoteDispatchAuthSaslStep:3985 : authentication failed: authentication failed