@c-po Still not fully resolved on Crux . Maybe candidate for Backlog on VyOS 1.2.3? Thanks.

I've tested the fix on latest rolling and so far it works as expected.
Thanks for the quick patch!

Also, there appear to be some leftovers from before 1.2 in dhclient-script@Line45, where vyatta-dns-forwarding.pl was removed in favour of dns_forwarding.py.

@c-po
Hello, unfortunately this issue is not fully resolved (tested in Crux 1.2.1) because the name of the shared-network is still prepended to the hostname in /etc/hosts by dhcp_server.py. It's hard-coded, but should be conditional to actually restore the old behaviour (before core rewrite), where (like @CBRjack described) a flag "disable_prefix" triggered by the "use-host-decl-name" option did prevent the old dhcp-config.pl from prepending the shared-network-name.