Thankyou for all the attention to this and the explanations Dan, but now I am also confused...
I tend to think that if my desktop is able to successfully lookup the host on the router (as per https://bugs.launchpad.net/ubuntu/+source/resolvconf/+bug/1817903) then I should expect that my laptop on the same lan, should also be able to do so, hence to me it is still a bug... So to clarify for me, if nothing else: If the router dns only has the hostname defined, i.e. phspi05 192.168.2.35 Lookups by the desktop (no NetworkManager, fixed IP) with resolv.conf containing: nameserver 192.168.2.1 nameserver 127.0.0.53 dig phspi05 = success dig phspi05.phs = fail Lookups by the laptop (with NetworkManager, dhcp assigned IP) with resolv.conf containing: nameserver 127.0.0.53 search phs dig phspi05 = fail dig phspi05.phs = fail dig phspi05 @192.168.2.1 = success dig phspi05.phs @192.168.2.1 = fail If I manually edit resolv.conf on the laptop so that it looks like nameserver 192.168.2.1 nameserver 127.0.0.53 search phs dig phspi05 = success So it seems to me that lookups by systemd-resolved are failing to lookup the hostname on the local DNS (even if this is by design) Whatever way I look at it, I have an inconsistency between computers on the same network. If the router has the hostname AND domainname defined: phspi05 192.168.2.35 phspi05.phs 192.168.2.35 then on the desktop dig phspi05 = success dig phspi05.phs = success on laptop dig phspi05 = fails dig phspi05.phs = success I guess I have a workaround to manually edit resolv.conf, and as I don't reboot that often it is not a big issue, but it doesn't feel right somehow. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1821491 Title: DNS lookup fails for local hosts To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1821491/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs