[Bug 1653495] Re: systemd-resolved breaks Steam

[Bas Zoetekouw]

I'm attaching DNS logs of a steam session using systemd-resolved, and of
one using Google directly.

** Attachment added: "dns packet capture without resoled"
   https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1653495/+attachment/4799003/+files/dns-google.pcap

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https://bugs.launchpad.net/bugs/1653495

Title:
  systemd-resolved breaks Steam

Status in systemd package in Ubuntu:
  New

Bug description:
  When systemd-resolved is active and /etc/resolv.conf points to
  127.0.0.53, steam fails to resolve domain names, and refuses to update
  or install games.  Often, it doesn't even start, because it wants to
  update itself, but cannot reach its content servers.

  Manually (dig/host/nslookup/etc), resolving works fine, and also
  Chrome etc do'nt show any problems.  It seems Steam uses some uncommon
  type of DNS records or so?

  If I change the nameserver in /etc/resolv.conf to 8.8.8.8, of to my
  local resolver, everything works fine again.

  ProblemType: Bug
  DistroRelease: Ubuntu 17.04
  Package: systemd 232-8
  ProcVersionSignature: Ubuntu 4.9.0-11.12-generic 4.9.0
  Uname: Linux 4.9.0-11-generic x86_64
  ApportVersion: 2.20.4-0ubuntu1
  Architecture: amd64
  CurrentDesktop: GNOME
  Date: Mon Jan  2 11:04:03 2017
  InstallationDate: Installed on 2016-12-22 (10 days ago)
  InstallationMedia: Ubuntu 16.10 "Yakkety Yak" - Release amd64 (20161012.2)
  MachineType: Dell Inc. Latitude E7470
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.9.0-11-generic.efi.signed root=/dev/mapper/hostname-root ro nosplash
  SourcePackage: systemd
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 11/09/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.11.3
  dmi.board.name: 0T6HHJ
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvr1.11.3:bd11/09/2016:svnDellInc.:pnLatitudeE7470:pvr:rvnDellInc.:rn0T6HHJ:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: Latitude E7470
  dmi.sys.vendor: Dell Inc.
  mtime.conffile..etc.systemd.resolved.conf: 2016-12-27T13:33:33.754548

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