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[Bug 1470028] Re: NSEC3: verify failed due to bad signature (keyid=33878): RRSIG validity period has not begun

 

It's much more likely that this is due to the update of dnsmasq
(https://launchpad.net/ubuntu/+source/dnsmasq/2.73-1):

juin 30 09:51:14 u32 NetworkManager[812]: <warn> dnsmasq not available on the bus, can't update servers.
juin 30 09:51:14 u32 NetworkManager[812]: <error> [1435650674.886674] [dns-manager/nm-dns-dnsmasq.c:398] update(): dnsmasq owner not found on bus: Could not get owner of name 'org.freedesktop.NetworkManager.dnsmasq': no such name
juin 30 09:51:14 u32 NetworkManager[812]: <warn> DNS: plugin dnsmasq update failed

Can you please test downgrading dnsmasq-base to the previous version
https://launchpad.net/ubuntu/+source/dnsmasq/2.72-3.1build1 ? If that
works, then it's a dnsmasq regression, or NetworkManager needs to get
adjusted to the newer version.

If that doesn't work, can you please try to downgrade to the previous
systemd version? This is much less likely to work as systemd doesn't do
any network configuration beyond starting NetworkManager (which
obviously works) and calling ifupdown (which you don't seem to use).

** Package changed: systemd (Ubuntu) => dnsmasq (Ubuntu)

** Changed in: dnsmasq (Ubuntu)
       Status: New => Incomplete

** Summary changed:

- NSEC3: verify failed due to bad signature (keyid=33878): RRSIG validity period has not begun
+ NetworkManager[792]: <warn> dnsmasq not available on the bus, can't update servers.

-- 
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Touch seeded packages, which is subscribed to dnsmasq in Ubuntu.
https://bugs.launchpad.net/bugs/1470028

Title:
  NetworkManager[792]: <warn> dnsmasq not available on the bus, can't
  update servers.

Status in dnsmasq package in Ubuntu:
  Incomplete

Bug description:
  First reboot after systemd has been upgraded to 221-1ubuntu2

  Network fully broken: no time, browsers failing to open urls

  Lot of 'time syncing' issues

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: systemd 221-1ubuntu2
  ProcVersionSignature: Ubuntu 4.0.0-3.5-generic 4.0.5
  Uname: Linux 4.0.0-3-generic i686
  NonfreeKernelModules: nvidia
  ApportVersion: 2.17.3-0ubuntu4
  Architecture: i386
  CurrentDesktop: GNOME
  Date: Tue Jun 30 11:12:46 2015
  Lsusb:
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 003 Device 002: ID 046d:c50e Logitech, Inc. Cordless Mouse Receiver
   Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
   Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: ASUSTEK COMPUTER INC P5W DH Deluxe
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.0.0-3-generic root=UUID=7b1f4a51-558f-468f-85e0-f815d2f791e1 ro
  SourcePackage: systemd
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 07/22/2010
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 3002
  dmi.board.asset.tag: To Be Filled By O.E.M.
  dmi.board.name: P5W DH Deluxe
  dmi.board.vendor: ASUSTeK Computer INC.
  dmi.board.version: Rev 1.xx
  dmi.chassis.asset.tag: Asset-1234567890
  dmi.chassis.type: 3
  dmi.chassis.vendor: Chassis Manufacture
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr3002:bd07/22/2010:svnASUSTEKCOMPUTERINC:pnP5WDHDeluxe:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP5WDHDeluxe:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
  dmi.product.name: P5W DH Deluxe
  dmi.product.version: System Version
  dmi.sys.vendor: ASUSTEK COMPUTER INC

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