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In Ubuntu Yakkety the following line in /etc/nsswitch.conf breaks DNS resolution via the VPN tunnel created by Sonicwall NetExtender application. hosts: files mdns4_minimal [NOTFOUND=return] resolve [!UNAVAIL=return] dns Changing this line to: hosts: files mdns4_minimal [NOTFOUND=return] resolve [UNAVAIL=return] dns or hosts: files mdns4_minimal [NOTFOUND=return] dns [!UNAVAIL=return] resolve I have not found documentation on what "resolve" means, so im not sure this lines makes global sense, but it solve my dns problem. If i have to guess its another systemd incarnation. As a side note NetExtender modifies /etc/resolv.conf and adds the VPN DNS servers as the first entries. So when NetExtender is connected the first lines in /etc/resolv.conf contains the VPN DNS IP and only after there is the local dnsmasq entry. Sadly i could not found which package creates this file as "dpkg-query -S /etc/nsswitch.conf" returns no results on my system. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: libnss3 2:3.26-1ubuntu1 ProcVersionSignature: Ubuntu 4.8.0-21.23-generic 4.8.0 Uname: Linux 4.8.0-21-generic x86_64 NonfreeKernelModules: zfs zunicode zcommon znvpair zavl nvidia_uvm nvidia_drm nvidia_modeset nvidia ApportVersion: 2.20.3-0ubuntu8 Architecture: amd64 CurrentDesktop: Unity Date: Wed Oct 12 13:58:41 2016 InstallationDate: Installed on 2016-07-27 (76 days ago) InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) SourcePackage: nss UpgradeStatus: Upgraded to yakkety on 2016-10-07 (4 days ago) ** Affects: systemd (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug nsswitch.conf yakkety -- SonicWall NetExteder broken by new nsswitch.conf configuration https://bugs.launchpad.net/bugs/1632681 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to systemd in Ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs