[Bug 1703640] Re: nplan and libnss-resolve should be in same dependency

[Dimitri John Ledkov]

This has now migrated, please retest.

** Changed in: systemd (Ubuntu)
   Status: Fix Committed => Fix Released

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Title:
  nplan and libnss-resolve should be in same dependency

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[Bug 1703640] Re: nplan and libnss-resolve should be in same dependency

[Dimitri John Ledkov]

about nplan/libnss-resolve dependency. This issue has been resolved in
systemd, it appears that resolved has not been started from systemd
package at all, when it should have been since yakkety.

systemd (234-1ubuntu2) artful; urgency=medium

  * Set UseDomains to true, by default, on Ubuntu.
On Ubuntu, fallback DNS servers are disabled, therefore we do not leak 
queries
to a preset 3rd party by default. In resolved, dnssec is also disabled by
default, as too much of the internet is broken and using Ubuntu users to 
debug
the internet is not very productive - most of the time the end-user cannot 
fix
or know how to notify the site owners about the dnssec mistakes. 
Inherintally
the DHCP acquired DNS servers are therefore trusted, and are free to spoof
records. Not trusting DNS search domains, in such scenario, provides limited
security or privacy benefits. From user point of view, this also appears to 
be
a regression from previous Ubuntu releases which do trust DHCP acquired 
search
domains by default.
Therefore we are enabling UseDomains by default on Ubuntu.
Users may override this setting in the .network files by specifying
[DHCP|IPv6AcceptRA] UseDomains=no|route options.
  * resolved: create private stub resolve file for integration with resolvconf.
The stub-resolve.conf file points at resolved stub resolver, but also lists 
the
available search domains. This is required to correctly resolve domains 
without
using resolve nss module.
  * Enable systemd-resolved by default
  * Create /etc/resolv.conf at postinst, pointing at the stub resolver.
The stub resolver file is dynamically managed by systemd-resolved. It 
points at
the stub resolver as the nameserver, however it also dynamically updates the
search stanza, thus non-nss dns tools work correctly with unqualified names 
and
correctly use the DHCP acquired search domains.
  * libnss-resolve: do not disable and stop systemd-resolved
resolved is always used by default on ubuntu via stub resolver, therefore it
should continue to operate without libnss-resolve module installed.

 -- Dimitri John Ledkov   Fri, 21 Jul 2017 17:07:17
+0100

** No longer affects: dbus (Ubuntu)

** Changed in: systemd (Ubuntu)
   Status: Triaged => Fix Committed

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Title:
  nplan and libnss-resolve should be in same dependency

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[Bug 1703640] Re: nplan and libnss-resolve should be in same dependency

[Dimitri John Ledkov]

** Also affects: dbus (Ubuntu)
   Importance: Undecided
   Status: New

** Changed in: dbus (Ubuntu)
   Status: New => Confirmed

** Changed in: dbus (Ubuntu)
   Importance: Undecided => Critical

** Changed in: dbus (Ubuntu)
 Assignee: (unassigned) => Dimitri John Ledkov (xnox)

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Title:
  nplan and libnss-resolve should be in same dependency

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[Bug 1703640] Re: nplan and libnss-resolve should be in same dependency

[Mathieu Trudel-Lapierre]

I don't think it is; you should be able to use things just as well with
/etc/resolv.conf, and having systemd-networkd (or systemd-resolved)
update it, depending on whether this is automatic via DHCP or for a
static IP.

Regardless, in general I tend to agree libnss-resolve probably should be
included at the same level as nplan; this will need some more testing.

In any case, not a bug in nplan, possibly a bug for libnss-resolve
(systemd); so reassigning.

** Package changed: nplan (Ubuntu) => systemd (Ubuntu)

** Changed in: systemd (Ubuntu)
   Importance: Undecided => Medium

** Changed in: systemd (Ubuntu)
   Status: New => Triaged

** Changed in: systemd (Ubuntu)
 Assignee: (unassigned) => Mathieu Trudel-Lapierre (cyphermox)

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Title:
  nplan and libnss-resolve should be in same dependency

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