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After upgrading to Yakkety, when my Ubuntu GNOME laptop resumes from
suspend DNS resolution stops working.
After resuming, systemd-resolved is running and libnss-resolve is
installed, but /etc/resolv.conf contains 127.0.1.1 as the the only name
server. The dnsmasq-base package is installed since it is pulled in by
both network-manager and lxc1, and both NM and libvirt have spawned
instances of dnsmasq:
> 1155 pts/2 S+ 0:00 grep dnsmasq
> 2724 ? S 0:00 dnsmasq -u lxc-dnsmasq --strict-order
> --bind-interfaces --pid-file=/run/lxc/dnsmasq.pid --listen-address 10.0.3.1
> --dhcp-range 10.0.3.2,10.0.3.254 --dhcp-lease-max=253 --dhcp-no-override
> --except-interface=lo --interface=lxcbr0
> --dhcp-leasefile=/var/lib/misc/dnsmasq.lxcbr0.leases --dhcp-authoritative
> 2992 ? S 0:00 /usr/sbin/dnsmasq
> --conf-file=/var/lib/libvirt/dnsmasq/default.conf --leasefile-ro
> --dhcp-script=/usr/lib/libvirt/libvirt_leaseshelper
> 2993 ? S 0:00 /usr/sbin/dnsmasq
> --conf-file=/var/lib/libvirt/dnsmasq/default.conf --leasefile-ro
> --dhcp-script=/usr/lib/libvirt/libvirt_leaseshelper
> 22879 ? S 0:00 /usr/sbin/dnsmasq --no-resolv --keep-in-foreground
> --no-hosts --bind-interfaces --pid-file=/var/run/NetworkManager/dnsmasq.pid
> --listen-address=127.0.1.1 --cache-size=0 --conf-file=/dev/null
> --proxy-dnssec --enable-dbus=org.freedesktop.NetworkManager.dnsmasq
> --conf-dir=/etc/NetworkManager/dnsmasq.d
Let me know if you need any extra info.
ProblemType: Bug
DistroRelease: Ubuntu 16.10
Package: libnss-resolve 231-9git1
ProcVersionSignature: Ubuntu 4.8.0-17.19-generic 4.8.0-rc7
Uname: Linux 4.8.0-17-generic x86_64
ApportVersion: 2.20.3-0ubuntu7
Architecture: amd64
CurrentDesktop: GNOME
Date: Fri Oct 7 13:52:40 2016
InstallationDate: Installed on 2015-07-22 (443 days ago)
InstallationMedia: Ubuntu-GNOME 15.04 "Vivid Vervet" - Release amd64 (20150422)
SourcePackage: systemd
UpgradeStatus: Upgraded to yakkety on 2016-10-05 (1 days ago)
** Affects: network-manager (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug yakkety
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Name resolution stops working after resume from suspend
https://bugs.launchpad.net/bugs/1631241
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