[Bug 1638836] Re: resolv.conf for resolved stub server should have a comment how to see the actual servers

[Martin Pitt]

Right, the comment would need to be conditional. My original naïve
approach was to add the comment together with the nameserver, such as

printf "# Run systemd-resolve --status blabla\nnameserver 127.0.0.53\n"
| /sbin/resolvconf -a systemd-resolved

so that the comment would only be there when appropriate and would also
be at the appropriate line.

manpage> Not sure if that really helps -- this would also have to
contain a lot of "if"s, like "if you have resolved/unbound/NM's
dnsmasq/etc." and document all of these cases, which is both confusing
and also prone to get out of sync with their respective upstreams.

(FTR, there is nothing Ubuntu specific here, it's the same in Debian and
any other Linux)

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https://bugs.launchpad.net/bugs/1638836

Title:
  resolv.conf for resolved stub server should have a comment how to see
  the actual servers

Status in resolvconf package in Ubuntu:
  In Progress

Bug description:
  resolv.conf currently just has

    nameserver 127.0.0.53

  with resolved (its local stub resolver). We should have an extra
  comment on top of that that says

    # systemd-resolved stub resolver; run "systemd-resolve --status" to
  see the actual name servers

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