This problem is present in Ubuntu 16.04 Xenial Desktop build, as well Quick workaround:
$ rm /run/resolvconf/interface/NetworkManager Deleting /run/resolvconf/interface/NetworkManager and re-running ifdown/ifup will result in the /etc/network/interfaces dns-nameservers to be populated into /etc/resolv.conf (aka ../run/resolvconf/resolv.conf) -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to dnsmasq in Ubuntu. https://bugs.launchpad.net/bugs/1384394 Title: /etc/network/interfaces: "dns-nameservers" entries for bridge "br*" interfaces are ignored i.e. they are not listed in "/etc/resolv.conf" when invoking "ifup" command Status in dnsmasq package in Ubuntu: Triaged Bug description: lsb_release -rd Description: Ubuntu 14.04.1 LTS Release: 14.04 apt-cache policy resolvconf resolvconf: Installed: 1.69ubuntu1.1 Candidate: 1.69ubuntu1.1 Version table: *** 1.69ubuntu1.1 0 500 http://ch.archive.ubuntu.com/ubuntu/ trusty-updates/main amd64 Packages 100 /var/lib/dpkg/status 1.69ubuntu1 0 500 http://ch.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages DESCRIPTION: network-manager: My "eth0" and "wlan0" cards are managed by the network-manager and this works fine. /etc/network/interfaces: My 2 bridges "br0" and "br1" are managed in "/etc/network/interfaces" as follows: ... iface br0 inet static address 192.168.10.1 netmask 255.255.255.0 dns-nameservers 192.168.10.2 bridge_ports none bridge_stp off bridge_fd 0 bridge_maxwait 0 iface br1 inet static address 192.168.0.1 netmask 255.255.255.0 dns-nameservers 192.168.0.2 bridge_ports none bridge_stp off bridge_fd 0 bridge_maxwait 0 ... When I now bring up the bridge interfaces using: sudo ifup br0 br1 Then they show up fine in "ifconfig". BUT "dns-nameservers 192.168.10.2" and "dns-nameservers 192.168.0.2" DO NOT show up in "/etc/resolv.conf" WORKAROUND: Until this has been fixed the following workaround works fine for me: sudo vi /etc/resolvconf/interface-order #Add the following entry (this entry can be put on any line BUT it has to come before the last entry "*"): ... br* ... * PS: Based on the workaround in "/etc/resolvconf/interface-order" I think the issue is in package "resolvconf" otherwise I would have reported the error against the "ifupdown scripts". To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dnsmasq/+bug/1384394/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
