Please read the whole thread and see the various other workarounds provided; granted the default shipped configuration for dnsmasq doesn't play well with NetworkManager, but it's easy to adjust to your particular needs and workaround this issue; which also only happens if the system acting as a server locally runs both dnsmasq and NetworkManager.
We've clearly identified that having dnsmasq bind to particular interfaces is an easy way to work around this and is a very good idea anyway. Please make sure your dnsmasq configuration sets interface= to the interface on which it should listen, and possibly also uncomment bind-interfaces in /etc/dnsmasq.conf. At that point the changes to /etc/NetworkManager/NetworkManager.conf won't be required. This isn't just a simple fix for this; the default shipped configuration for dnsmasq is just as "guilty" as network-manager for assuming it should bind on all addresses and all interfaces. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to network-manager in Ubuntu. 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. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/959037/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
