If you're installing dnsmasq on top of the standard desktop install, why
is it such an issue to edit the NetworkManager configuration to cater it
to your needs? Wouldn't it make sense it this case to go further steps
and make sure the network connection is setup in /etc/network/interfaces
rather than NM, to ensure you don't suddenly get a different IP address
from DHCP?

I don't think adding complexity by creating new virtual packages for
configurations is a sensible thing to do; and setting up a special
upstart job to spawn a local resolver won't work (NM spawns it itself,
using a custom configuration on purpose).

Since NM relies on dnsmasq-base for the standalone binary rather than
the 'dnsmasq' package itself; I guess a workable solution would be to
check for /etc/default/dnsmasq and not spawn dnsmasq if the value of
ENABLED is 1. Working on top of that for later releases we might then be
able to try speaking to a running instance via DBus in such cases to
pass server changes to it.

Setting to Triaged; we've got a way to possibly deal with this use
case...

** Changed in: network-manager (Ubuntu)
   Importance: Low => Medium

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https://bugs.launchpad.net/bugs/959037

Title:
  Don't start local resolver if a DNS server is installed

Status in “network-manager” package in Ubuntu:
  Triaged

Bug description:
  As described in
  https://blueprints.launchpad.net/ubuntu/+spec/foundations-p-dns-
  resolving, network manager now starts a dnsmasq instance for local DNS
  resolving.

  That breaks the default bind9 and dnsmasq installations, for people that 
actually want to install a DNS server.
  Having to manually comment out "#dns=dnsmasq" in 
/etc/NetworkManager/NetworkManager.conf doesn't sound good, and if it stays 
that way, it should be moved to the bind9 and dnsmasq postinst scripts.

  Please make network-manager smarter so that it checks if bind9 or
  dnsmasq are installed, so that it doesn't start the local resolver in
  that case.

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