Public bug reported:

After upgrading my 16.04 installation today I noticed my VPN sessions
suddenly had no name resolution anymore.

Digging through /var/log/apt/history.log I noticed these were the
updates:

Start-Date: 2016-10-13  09:00:37
Commandline: apt dist-upgrade
Requested-By: jeroenr (1000)
Upgrade: libnm-glib4:amd64 (1.2.2-0ubuntu0.16.04.1, 1.2.2-0ubuntu0.16.04.3), 
libsystemd0:amd64 (229-4ubuntu10, 229-4ubuntu11), libsystemd0:i386 
(229-4ubuntu10, 229-4ubuntu11), libdbusmenu-glib4:amd64 
(12.10.3+16.04.20160223.1-0ubuntu1, 16.04.1+16.04.20160927-0ubuntu1), 
google-chrome-stable:amd64 (53.0.2785.143-1, 54.0.2840.59-1), 
libnm-glib-vpn1:amd64 (1.2.2-0ubuntu0.16.04.1, 1.2.2-0ubuntu0.16.04.3), 
udev:amd64 (229-4ubuntu10, 229-4ubuntu11), libnm0:amd64 
(1.2.2-0ubuntu0.16.04.1, 1.2.2-0ubuntu0.16.04.3), network-manager:amd64 
(1.2.2-0ubuntu0.16.04.1, 1.2.2-0ubuntu0.16.04.3), libdbusmenu-gtk4:amd64 
(12.10.3+16.04.20160223.1-0ubuntu1, 16.04.1+16.04.20160927-0ubuntu1), kbd:amd64 
(1.15.5-1ubuntu4, 1.15.5-1ubuntu5), libudev1:amd64 (229-4ubuntu10, 
229-4ubuntu11), libudev1:i386 (229-4ubuntu10, 229-4ubuntu11), libnm-util2:amd64 
(1.2.2-0ubuntu0.16.04.1, 1.2.2-0ubuntu0.16.04.3), libappstream-glib8:amd64 
(0.5.13-1ubuntu3, 0.5.13-1ubuntu4), gnome-calculator:amd64 (1:3.18.3-0ubuntu1, 
1:3.18.3-0ub
 untu1.16.04.1), systemd-sysv:amd64 (229-4ubuntu10, 229-4ubuntu11), 
libpam-systemd:amd64 (229-4ubuntu10, 229-4ubuntu11), systemd:amd64 
(229-4ubuntu10, 229-4ubuntu11), gir1.2-dbusmenu-glib-0.4:amd64 
(12.10.3+16.04.20160223.1-0ubuntu1, 16.04.1+16.04.20160927-0ubuntu1), 
libdbusmenu-gtk3-4:amd64 (12.10.3+16.04.20160223.1-0ubuntu1, 
16.04.1+16.04.20160927-0ubuntu1), lightdm:amd64 (1.18.2-0ubuntu2, 
1.18.3-0ubuntu1), liblightdm-gobject-1-0:amd64 (1.18.2-0ubuntu2, 
1.18.3-0ubuntu1)
End-Date: 2016-10-13  09:01:06

After downloading version 1.2.2-0ubuntu0.16.04.1 copies of libnm-glib-
vpn1:amd64 libnm-glib4:amd64 libnm-util2:amd64 libnm0:amd64 network-
manager:amd64 and installing them via: sudo -H dpkg -i *.deb my name
resolution started working again.

Additional information:

% lsb_release -rd
Description:    Ubuntu 16.04.1 LTS
Release:        16.04

% apt-cache policy libnm-glib-vpn1 libnm-glib4 libnm-util2 libnm0 
network-manager
libnm-glib-vpn1:
  Installed: 1.2.2-0ubuntu0.16.04.1
  Candidate: 1.2.2-0ubuntu0.16.04.3
  Version table:
     1.2.2-0ubuntu0.16.04.3 500
        500 http://nl.archive.ubuntu.com/ubuntu xenial-updates/main amd64 
Packages
 *** 1.2.2-0ubuntu0.16.04.1 100
        100 /var/lib/dpkg/status
     1.1.93-0ubuntu4 500
        500 http://nl.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
libnm-glib4:
  Installed: 1.2.2-0ubuntu0.16.04.1
  Candidate: 1.2.2-0ubuntu0.16.04.3
  Version table:
     1.2.2-0ubuntu0.16.04.3 500
        500 http://nl.archive.ubuntu.com/ubuntu xenial-updates/main amd64 
Packages
 *** 1.2.2-0ubuntu0.16.04.1 100
        100 /var/lib/dpkg/status
     1.1.93-0ubuntu4 500
        500 http://nl.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
libnm-util2:
  Installed: 1.2.2-0ubuntu0.16.04.1
  Candidate: 1.2.2-0ubuntu0.16.04.3
  Version table:
     1.2.2-0ubuntu0.16.04.3 500
        500 http://nl.archive.ubuntu.com/ubuntu xenial-updates/main amd64 
Packages
 *** 1.2.2-0ubuntu0.16.04.1 100
        100 /var/lib/dpkg/status
     1.1.93-0ubuntu4 500
        500 http://nl.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
libnm0:
  Installed: 1.2.2-0ubuntu0.16.04.1
  Candidate: 1.2.2-0ubuntu0.16.04.3
  Version table:
     1.2.2-0ubuntu0.16.04.3 500
        500 http://nl.archive.ubuntu.com/ubuntu xenial-updates/main amd64 
Packages
 *** 1.2.2-0ubuntu0.16.04.1 100
        100 /var/lib/dpkg/status
     1.1.93-0ubuntu4 500
        500 http://nl.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
network-manager:
  Installed: 1.2.2-0ubuntu0.16.04.1
  Candidate: 1.2.2-0ubuntu0.16.04.3
  Version table:
     1.2.2-0ubuntu0.16.04.3 500
        500 http://nl.archive.ubuntu.com/ubuntu xenial-updates/main amd64 
Packages
 *** 1.2.2-0ubuntu0.16.04.1 100
        100 /var/lib/dpkg/status
     1.1.93-0ubuntu4 500
        500 http://nl.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
% apt-cache policy vpnc           
vpnc:
  Installed: 0.5.3r550-2build1
  Candidate: 0.5.3r550-2build1
  Version table:
 *** 0.5.3r550-2build1 500
        500 http://nl.archive.ubuntu.com/ubuntu xenial/universe amd64 Packages
        100 /var/lib/dpkg/status


Expected
After updating that connecting to my existing and working Cisco VPN would work

What happened
Name resolution failed. Could not ping hosts over VPN anymore.

Most likely cause
It seems that /etc/resolv.conf is not getting the search argument added to the 
file anymore. With .3 installed I only had a nameserver 127.0.0.1 line. Now 
with .1 installed I see that I have both that nameserver 127.0.0.1 line as well 
as search <VPN DNS domain>

** Affects: network-manager (Ubuntu)
     Importance: Undecided
         Status: New

-- 
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/1633003

Title:
  (Cisco) VPN name resolution breaks after upgrade to
  1.2.2-0ubuntu0.16.04.3

Status in network-manager package in Ubuntu:
  New

Bug description:
  After upgrading my 16.04 installation today I noticed my VPN sessions
  suddenly had no name resolution anymore.

  Digging through /var/log/apt/history.log I noticed these were the
  updates:

  Start-Date: 2016-10-13  09:00:37
  Commandline: apt dist-upgrade
  Requested-By: jeroenr (1000)
  Upgrade: libnm-glib4:amd64 (1.2.2-0ubuntu0.16.04.1, 1.2.2-0ubuntu0.16.04.3), 
libsystemd0:amd64 (229-4ubuntu10, 229-4ubuntu11), libsystemd0:i386 
(229-4ubuntu10, 229-4ubuntu11), libdbusmenu-glib4:amd64 
(12.10.3+16.04.20160223.1-0ubuntu1, 16.04.1+16.04.20160927-0ubuntu1), 
google-chrome-stable:amd64 (53.0.2785.143-1, 54.0.2840.59-1), 
libnm-glib-vpn1:amd64 (1.2.2-0ubuntu0.16.04.1, 1.2.2-0ubuntu0.16.04.3), 
udev:amd64 (229-4ubuntu10, 229-4ubuntu11), libnm0:amd64 
(1.2.2-0ubuntu0.16.04.1, 1.2.2-0ubuntu0.16.04.3), network-manager:amd64 
(1.2.2-0ubuntu0.16.04.1, 1.2.2-0ubuntu0.16.04.3), libdbusmenu-gtk4:amd64 
(12.10.3+16.04.20160223.1-0ubuntu1, 16.04.1+16.04.20160927-0ubuntu1), kbd:amd64 
(1.15.5-1ubuntu4, 1.15.5-1ubuntu5), libudev1:amd64 (229-4ubuntu10, 
229-4ubuntu11), libudev1:i386 (229-4ubuntu10, 229-4ubuntu11), libnm-util2:amd64 
(1.2.2-0ubuntu0.16.04.1, 1.2.2-0ubuntu0.16.04.3), libappstream-glib8:amd64 
(0.5.13-1ubuntu3, 0.5.13-1ubuntu4), gnome-calculator:amd64 (1:3.18.3-0ubuntu1, 
1:3.18.3-0
 ubuntu1.16.04.1), systemd-sysv:amd64 (229-4ubuntu10, 229-4ubuntu11), 
libpam-systemd:amd64 (229-4ubuntu10, 229-4ubuntu11), systemd:amd64 
(229-4ubuntu10, 229-4ubuntu11), gir1.2-dbusmenu-glib-0.4:amd64 
(12.10.3+16.04.20160223.1-0ubuntu1, 16.04.1+16.04.20160927-0ubuntu1), 
libdbusmenu-gtk3-4:amd64 (12.10.3+16.04.20160223.1-0ubuntu1, 
16.04.1+16.04.20160927-0ubuntu1), lightdm:amd64 (1.18.2-0ubuntu2, 
1.18.3-0ubuntu1), liblightdm-gobject-1-0:amd64 (1.18.2-0ubuntu2, 
1.18.3-0ubuntu1)
  End-Date: 2016-10-13  09:01:06

  After downloading version 1.2.2-0ubuntu0.16.04.1 copies of libnm-glib-
  vpn1:amd64 libnm-glib4:amd64 libnm-util2:amd64 libnm0:amd64 network-
  manager:amd64 and installing them via: sudo -H dpkg -i *.deb my name
  resolution started working again.

  Additional information:

  % lsb_release -rd
  Description:  Ubuntu 16.04.1 LTS
  Release:      16.04

  % apt-cache policy libnm-glib-vpn1 libnm-glib4 libnm-util2 libnm0 
network-manager
  libnm-glib-vpn1:
    Installed: 1.2.2-0ubuntu0.16.04.1
    Candidate: 1.2.2-0ubuntu0.16.04.3
    Version table:
       1.2.2-0ubuntu0.16.04.3 500
          500 http://nl.archive.ubuntu.com/ubuntu xenial-updates/main amd64 
Packages
   *** 1.2.2-0ubuntu0.16.04.1 100
          100 /var/lib/dpkg/status
       1.1.93-0ubuntu4 500
          500 http://nl.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
  libnm-glib4:
    Installed: 1.2.2-0ubuntu0.16.04.1
    Candidate: 1.2.2-0ubuntu0.16.04.3
    Version table:
       1.2.2-0ubuntu0.16.04.3 500
          500 http://nl.archive.ubuntu.com/ubuntu xenial-updates/main amd64 
Packages
   *** 1.2.2-0ubuntu0.16.04.1 100
          100 /var/lib/dpkg/status
       1.1.93-0ubuntu4 500
          500 http://nl.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
  libnm-util2:
    Installed: 1.2.2-0ubuntu0.16.04.1
    Candidate: 1.2.2-0ubuntu0.16.04.3
    Version table:
       1.2.2-0ubuntu0.16.04.3 500
          500 http://nl.archive.ubuntu.com/ubuntu xenial-updates/main amd64 
Packages
   *** 1.2.2-0ubuntu0.16.04.1 100
          100 /var/lib/dpkg/status
       1.1.93-0ubuntu4 500
          500 http://nl.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
  libnm0:
    Installed: 1.2.2-0ubuntu0.16.04.1
    Candidate: 1.2.2-0ubuntu0.16.04.3
    Version table:
       1.2.2-0ubuntu0.16.04.3 500
          500 http://nl.archive.ubuntu.com/ubuntu xenial-updates/main amd64 
Packages
   *** 1.2.2-0ubuntu0.16.04.1 100
          100 /var/lib/dpkg/status
       1.1.93-0ubuntu4 500
          500 http://nl.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
  network-manager:
    Installed: 1.2.2-0ubuntu0.16.04.1
    Candidate: 1.2.2-0ubuntu0.16.04.3
    Version table:
       1.2.2-0ubuntu0.16.04.3 500
          500 http://nl.archive.ubuntu.com/ubuntu xenial-updates/main amd64 
Packages
   *** 1.2.2-0ubuntu0.16.04.1 100
          100 /var/lib/dpkg/status
       1.1.93-0ubuntu4 500
          500 http://nl.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
  % apt-cache policy vpnc           
  vpnc:
    Installed: 0.5.3r550-2build1
    Candidate: 0.5.3r550-2build1
    Version table:
   *** 0.5.3r550-2build1 500
          500 http://nl.archive.ubuntu.com/ubuntu xenial/universe amd64 Packages
          100 /var/lib/dpkg/status

  
  Expected
  After updating that connecting to my existing and working Cisco VPN would work

  What happened
  Name resolution failed. Could not ping hosts over VPN anymore.

  Most likely cause
  It seems that /etc/resolv.conf is not getting the search argument added to 
the file anymore. With .3 installed I only had a nameserver 127.0.0.1 line. Now 
with .1 installed I see that I have both that nameserver 127.0.0.1 line as well 
as search <VPN DNS domain>

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1633003/+subscriptions

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