It has been a few months since the last comment.

If no solution along the lines of those outlined earlier (see comments
#28, #29, #34, #37) is forthcoming then nm-dnsmasq should simply be put
back into strict-order mode, thus reversing the change made at the
suggestion of bug #903854.

Stéphane wrote in #37:
> Switching back to strict-order is a bad idea for the reasons
> listed in bug 903854, namely, we'd loose our biggest
> advantage from using dnsmasq. 

The biggest advantage is only a performance advantage under some
circumstances. This in no way stacks up against outright failure under
other circumstances — circumstances typical of many LANs.  If no
solution for this bug (#1003842) is forthcoming then it is time to admit
that switching off strict-order was the wrong thing to do. Knowing what
we know now, we should switch it back on, and only switch it off again
when a solution has been found for this bug. If switching on strict-
order eliminates the only advantages of using nm-dnsmasq then nm-dnsmasq
itself should be switched off (as proposed at bug #1086693) until that
time.

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https://bugs.launchpad.net/bugs/1003842

Title:
  dnsmasq sometimes fails to resolve private names in networks with non-
  equivalent nameservers

Status in “dnsmasq” package in Ubuntu:
  Confirmed
Status in “network-manager” package in Ubuntu:
  In Progress
Status in “dnsmasq” source package in Precise:
  Confirmed
Status in “network-manager” source package in Precise:
  Triaged
Status in “dnsmasq” package in Debian:
  New

Bug description:
  A number of reports already filed against network-manager seem to
  reflect this problem, but to make things very clear I am opening a new
  report.  Where appropriate I will mark other reports as duplicates of
  this one.

  Consider a pre-Precise system with the following /etc/resolv.conf:

      nameserver 192.168.0.1
      nameserver 8.8.8.8

  The first address is the address of a nameserver on the LAN that can
  resolve both private and public domain names.  The second address is
  the address of a nameserver on the Internet that can resolve only
  public names.

  This setup works fine because the GNU resolver always tries the first-
  listed address first.

  Now the administrator upgrades to Precise and instead of writing the
  above to resolv.conf, NetworkManager writes

      server=192.168.0.1
      server=8.8.8.8

  to /var/run/nm-dns-dnsmasq.conf and "nameserver 127.0.0.1" to
  resolv.conf.  Resolution of private domain names is now broken because
  dnsmasq treats the two upstream nameservers as equals and uses the
  faster one, which could be 8.8.8.8.

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