Public bug reported: On 16.04 I had no problems. On 18.04 systemd-resolved fails to resolve host name without domain (using nslookup) even though DNS server is reported by systemd-resolve --status. If to provide DNS to nslookup explicitly, then the name is resolved.
$ systemd-resolve --status Global DNSSEC NTA: 10.in-addr.arpa 16.172.in-addr.arpa 168.192.in-addr.arpa 17.172.in-addr.arpa 18.172.in-addr.arpa 19.172.in-addr.arpa 20.172.in-addr.arpa 21.172.in-addr.arpa 22.172.in-addr.arpa 23.172.in-addr.arpa 24.172.in-addr.arpa 25.172.in-addr.arpa 26.172.in-addr.arpa 27.172.in-addr.arpa 28.172.in-addr.arpa 29.172.in-addr.arpa 30.172.in-addr.arpa 31.172.in-addr.arpa corp d.f.ip6.arpa home internal intranet lan local private test Link 3 (wlp4s0) Current Scopes: none LLMNR setting: yes MulticastDNS setting: no DNSSEC setting: no DNSSEC supported: no Link 2 (enp0s31f6) Current Scopes: DNS LLMNR setting: yes MulticastDNS setting: no DNSSEC setting: no DNSSEC supported: no DNS Servers: 192.168.200.1 $ nslookup sniffer Server: 127.0.0.53 Address: 127.0.0.53#53 ** server can't find sniffer: SERVFAIL $ nslookup sniffer 192.168.200.1 Server: 192.168.200.1 Address: 192.168.200.1#53 Name: sniffer Address: 192.168.200.1 ** Affects: systemd (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1790628 Title: systemd from 18.04 fails to resolve name without domain To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1790628/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs