Public bug reported:
Upgraded to Kubuntu 17.10 beta 2 today.
On logging in I was unable to connect to any network services. I
discovered that any DNS lookups returned SERVFAIL. It seems the caches
being used in my university don't support DNSSEC yet and, despite the
systemd-resolved man page saying that DNSSEC=allow-downgrade (the
default) will allow me to use caches which don't support DNSSEC, I had
to explicitly specify DNSSEC=off and restart systemd-resolved.
I can reproduce the bug trivially by changing the
/etc/systemd/resolved.conf DNSSEC= setting back to the default and
trying a DNS lookup.
:) bduncan@fry:~$ apt-cache policy systemd
systemd:
Installed: 232-19
Candidate: 232-19
Version table:
*** 232-19 500
500 http://gb.archive.ubuntu.com/ubuntu zesty/main amd64 Packages
100 /var/lib/dpkg/status
:) bduncan@fry:~$ lsb_release -rd
Description: Ubuntu Zesty Zapus (development branch)
Release: 17.04
Hope this helps,
Bruce
** Affects: libreoffice (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1676973
Title:
systemd-resolved fails to use non-dnssec caches
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