** Description changed: + [Impact] + systemd-resolved is not enabled by default, therefore relies on dbus activation to become active and operatable and update resolvconf with resolved stub resolver + + [Fix] + Enable systemd-resolved in the src:systemd package by default, even when libnss-resolve is not installed + + [Regression Potential] + Minimal, simply the service is now started earlier in the boot, as part of the multi-user.targer, rather than awaiting for dbus activation from command line tool or the nss-resolved module. + + [Testcase] + Debootstrap minimal zesty, without libnss-resolve package installed, boot and check that 127.0.0.53 is present in /etc/resolv.conf and that systemd-resolved.service is running + Context: fresh install of zesty via debootstrap --include=nano,dbus,iputils-ping,iproute2 zesty zesty1 http://fr.archive.ubuntu.com/ubuntu ran via asystemd-nspawn with a static IP 1. Upon first connexion, a ping fails: root@zesty1:~# ping google.com ping: google.com: Temporary failure in name resolution 2. The content of /etc/resolv.conf: root@zesty1:~# cat /etc/resolv.conf # Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8) # DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN # 127.0.0.53 is the systemd-resolved stub resolver. # run "systemd-resolve --status" to see details about the actual nameservers. 3. When running systemd-resolve --status: root@zesty1:~# systemd-resolve --status Global - DNS Servers: 8.8.8.8 - 8.8.4.4 - 2001:4860:4860::8888 - 2001:4860:4860::8844 - DNSSEC NTA: 10.in-addr.arpa - 16.172.in-addr.arpa - 168.192.in-addr.arpa + DNS Servers: 8.8.8.8 + 8.8.4.4 + 2001:4860:4860::8888 + 2001:4860:4860::8844 + DNSSEC NTA: 10.in-addr.arpa + 16.172.in-addr.arpa + 168.192.in-addr.arpa (...) 4. After running this command the resolution is miraculously restored: root@zesty1:~# ping google.com PING google.com (172.217.22.142) 56(84) bytes of data. 64 bytes from 172.217.22.142 (172.217.22.142): icmp_seq=1 ttl=53 time=2.62 ms 64 bytes from 172.217.22.142 (172.217.22.142): icmp_seq=2 ttl=53 time=1.93 ms
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1710410 Title: Must run systemd-resolve --status before DNS resolving is operative To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1710410/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
