[Bug 1718890] Re: name resolution stops working

[Sebastien Bacher]

thank you for your bug report. So the issue there is the same as in the
upstream ticket, that you expect the lookups to always be done using the
servers in the order of what is in resolv.conf? if so could you update
the title to state that/what you believe the problem to be exactly?

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to systemd in Ubuntu.
https://bugs.launchpad.net/bugs/1718890

Title:
  name resolution stops working

Status in systemd package in Ubuntu:
  Confirmed

Bug description:
  System: Ubuntu 17.10 beta
  DNS server hosts an internal and an external domain (the internal is used for internal purposes).

  Name resolution works for a while. Every now and then, the name resolution stops working.
  This issue was reported in 17.04 but no suggestion for resolv has worked.

  In 17.10 the symptoms are the same, the duration till it happens are
  longer (about 1.5 days).

  restarting systemd-resolved solves the issue temporarily. However,
  this should not be required at all.

  Happens on a fresh install

  Setup:

  DNS serves rsb.at and rsb.intern
  Server www.rsb.at can be reached even when internal resolution fails.
  Seems that the internal DNS server (the first in the line) is not queried first.
  If so, an rsb.intern address will not be found.

  ProblemType: Bug
  DistroRelease: Ubuntu 17.10
  Package: systemd 234-2ubuntu10
  ProcVersionSignature: Ubuntu 4.13.0-11.12-generic 4.13.1
  Uname: Linux 4.13.0-11-generic x86_64
  ApportVersion: 2.20.7-0ubuntu1
  Architecture: amd64
  CurrentDesktop: ubuntu:GNOME
  Date: Fri Sep 22 11:05:57 2017
  InstallationDate: Installed on 2017-09-05 (16 days ago)
  InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Alpha amd64 (20170902)
  Lsusb:
   Bus 002 Device 002: ID 05ac:8406 Apple, Inc. 
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 05ac:0273 Apple, Inc. 
   Bus 001 Device 002: ID 05ac:8290 Apple, Inc. 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Apple Inc. MacBookPro12,1
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.13.0-11-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
  SourcePackage: systemd
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 06/18/2017
  dmi.bios.vendor: Apple Inc.
  dmi.bios.version: MBP121.88Z.0167.B33.1706181928
  dmi.board.name: Mac-E43C1C25D4880AD6
  dmi.board.vendor: Apple Inc.
  dmi.board.version: MacBookPro12,1
  dmi.chassis.type: 9
  dmi.chassis.vendor: Apple Inc.
  dmi.chassis.version: Mac-E43C1C25D4880AD6
  dmi.modalias: dmi:bvnAppleInc.:bvrMBP121.88Z.0167.B33.1706181928:bd06/18/2017:svnAppleInc.:pnMacBookPro12,1:pvr1.0:rvnAppleInc.:rnMac-E43C1C25D4880AD6:rvrMacBookPro12,1:cvnAppleInc.:ct9:cvrMac-E43C1C25D4880AD6:
  dmi.product.family: MacBook Pro
  dmi.product.name: MacBookPro12,1
  dmi.product.version: 1.0
  dmi.sys.vendor: Apple Inc.
  mtime.conffile..etc.systemd.resolved.conf: 2017-09-06T23:14:52.682864

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1718890/+subscriptions