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[Klaus Bielke <991481@xxxxxxxxxxxxxxxxxx>]

I did some experiments on an Ubuntu GNOME 14.04 LTS desktop standard
installation. There are 4 (!) components involved in this annoying
traffic:

whoopsie
network manager
dnsmasq (started by network manager)
IPv6

The repeated DNS-requests for daisy.ubuntu.com stop when de-activating anyone of these! You (as root) may use these recipes as workarounds:
Workaround #1: De-activate whoopsie:
#initctl stop whoopsie
#echo 'manual' > /etc/init/whoopsie.override

Or workaround #2: De-activate Network Manager:
#initctl stop network-manager
#echo 'manual' > /etc/init/network-manager.override
- Bring up network interface through config lines in file /etc/network/interfaces, e.g.
  iface eth0 inet dhcp
  auto eth0
#ifup eth0

Or workaround #3: Disable dnsmasq
- Edit file /etc/NetworkManager/NetworkManager.conf and change line with
  dns=dnsmasq
to
  #dns=dnsmasq
- Restart Network Manager:
# initctl restart network-manager

Or workaround #4: Disable IPv6:
#sysctl -w net/ipv6/conf/all/disable_ipv6=1 
#echo 'net/ipv6/conf/all/disable_ipv6=1' >/etc/sysctl.d/10-ipv6-off

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https://bugs.launchpad.net/bugs/991481

Title:
  Constant dns traffic for daisy.ubuntu.com

Status in Ubuntu error tracker client (whoopsie):
  Confirmed
Status in glib2.0 package in Ubuntu:
  Invalid
Status in network-manager package in Ubuntu:
  In Progress
Status in whoopsie package in Ubuntu:
  Triaged

Bug description:
  Watching GNetworkMonitor's network-changed signal causes constant DNS
  traffic.

  Andy Whitcroft points out that the NETLINK_ROUTE socket set up by
  GNetworkMonitor will fire events every time an ARP entry appears or
  disappears.

  Unfortunately, we currently need an additional layer of connectivity
  checking because checking NetworkManager's state for CONNECTED_GLOBAL
  is not enough to know whether we're really online. Ubuntu does not yet
  use the NetworkManager connectivity check [1].

  The likely solution to this bug is a replacement for GNetworkMonitor
  in whoopsie.

  1: http://bazaar.launchpad.net/~daisy-
  pluckers/whoopsie/trunk/view/head:/src/connectivity.c#L326

  Original report follows:

  Every few seconds, I see a dns query for daisy.ubuntu.com. After
  removing whoopsie, the traffic goes away.

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