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[Bug 1003842] Re: dnsmasq sometimes fails to resolve private names in networks with non-equivalent nameservers

 

I stumbled upon this Problem on 15.04. I cannot resolve company intranet
hosts via VPN as my WLANs local DNS server is always faster and only
knows about my local machines and internet.

>From a users perspective I don't care about what might be the correct
setup of the DNS-Servers (I cannot influence them) nor about personal
opinions on how it should be done. I need my system to work. I'm very
happy with Ubuntu, but this is a show stopper for me. I'll try to find a
work around as I could not find one above (why not this is about 3 years
old already). But if I cannot find one this will mean the end of ubuntu
on my company notebook.

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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:
  Confirmed
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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