Thanks again Dan for taking the time to explain. > stop using dig to debug your system.
Sorry thought I was using dig at your request... I was originally using nslookup and ping to find out why I couldn't browse to the server on phspi05 (phspi05 is actually controlling the heating and cooling in my glasshouse) and confusingly to me they give different results, ping often works when nslookup fails (as is currently the case on the desktop) > you don't need the router configured to resolve the "single label" (without > .phs) hostname ... I have managed to telnet into the router: # cat /etc/resolv.conf domain phs nameserver 208.67.222.222 nameserver 212.159.6.10 so clearly the domain is set, but if I remove the single label entry from the router even ping fails from the desktop (but still works on the laptop....) and it seems that when providing an address via dhcp (e.g. to the laptop) the router puts both phs09 and phs09.phs in /etc/hosts, so I guess the router needs it... -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1821491 Title: DNS lookup fails for local hosts Status in systemd package in Ubuntu: Invalid Bug description: Mint 19 (Ubuntu Bionic) Laptop so Using NetworkManager, and connecting wirelessly to LAN Upgraded from Mint 18.3 so using resolvconf... Versions: network-manager: 1.10.6-2ubuntu1.1 resolvconf: 1.79ubuntu10.18.04.3 or 1.79ubuntu10.18.04.2 systemd: 237-3ubuntu10.15 dns is specified in NetworkMananager as 192.168.2.1 the dns is a router, and has static ips assigned to certain hosts on my lan... $cat resolv.conf nameserver 127.0.0.53 search phs options edns0 $ nslookup phspi05 Server: 127.0.0.53 Address: 127.0.0.53#53 ** server can't find phspi05: SERVFAIL If I explicity specify the dns: $ nslookup phspi05 192.168.2.1 Server: 192.168.2.1 Address: 192.168.2.1#53 Non-authoritative answer: Name: phspi05 Address: 192.168.2.35 I get the correct ip address... Same with dig... I would expect that the nameserver set in network-manager would be used.... From tail of $ systemd-resolve --status Link 2 (wlp2s0) Current Scopes: DNS LLMNR setting: yes MulticastDNS setting: no DNSSEC setting: no DNSSEC supported: no DNS Servers: 192.168.2.1 DNS Domain: phs So the dns address had been picked up from NetworkManager, but apparently is not being used... Thought it might be related to this bug: https://bugs.launchpad.net/ubuntu/bionic/+source/resolvconf/+bug/1817903 So installed the proposed fix, but no change. I also tried removing package resolvconf, again no change... To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1821491/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp