As bug #947020 was closed without dealing with all wishes expressed in it I'm open a follow up here:
IMHO, for security reasons, SPICE should be usable as well via UNIX sockets instead of TCP.
This of course doesn't only apply to libvirt/qemu on the server side, but also to the client side (i.e. virt-manager and perhaps virt-viewer as well).
This bug appears to have been reported against 'rawhide' during the Fedora 22 development cycle.
Changing version to '22'.
More information and reason for this action is here:
qemu will support this with 2.3.0, but I don't think libvirt supports it for spice yet
Patches posted upstream: http://www.redhat.com/archives/libvir-list/2016-March/msg00979.html
This bug was accidentally moved from POST to MODIFIED via an error in automation, please see email@example.com with any questions
Author: Pavel Hrdina <firstname.lastname@example.org>
Date: Wed May 18 14:11:20 2016 +0200
spice: introduce spice_auto_unix_socket config option