[Bug 1817903] Re: systemd-resolve appends "options edns0" to resolv.conf

[Steve Roberts]

Yes that works, and many thanks for the explanation.

/etc/resolv.conf is now linked to /run/resolvconf/resolv.conf
and contains only the local proxy dns:

$ 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.

nameserver 192.168.2.1

and all works as expected

But in the long term I guess I should move to systemd-networkd as the
preferred way to set static ip?

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Title:
  systemd-resolve appends "options edns0" to resolv.conf

Status in systemd package in Ubuntu:
  In Progress

Bug description:
  Mint 19 (Ubuntu 18.04)

  Following latest mint update done on 24/02/2019, DNS is broken....

  nslookup and dig of certain domain names work as expected, ping does
  not (ip works but not domain name)

  After a day of trial and error, testing I found that the problem lies
  with the presence of

  "options edns0"

  in /run/resolvconf/resolv.conf (link to by /etc/resolv.conf)

  With option present many dns lookups fail with both FF and chrome browswers and thunderbird...
  This is on a home network, with router set as dns proxy for external wan, not using NetworkManager

  Deleting the option on live system results in the issue immediately
  disappearing, but on reboot it is added back in (by systemd-resolve ?)

  I cannot find any option to prevent this being added, so presumably it
  is hard-coded in systemd following the update?

  systemd:
    Installed: 237-3ubuntu10.13

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