[Bug 1673860] Re: systemd-resolved unit should run Before=network-online.target

[Steve Langasek]

** Also affects: systemd (Ubuntu Xenial)
   Importance: Undecided
       Status: New

** Also affects: systemd (Ubuntu Yakkety)
   Importance: Undecided
       Status: New

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Title:
  systemd-resolved unit should run Before=network-online.target

Status in systemd package in Ubuntu:
  New
Status in systemd source package in Xenial:
  New
Status in systemd source package in Yakkety:
  New

Bug description:
  1) Xenial, Yakkety and Zesty;  (Xenial is affected if you're using networkd and resolved, but it's not the default)
  2) 229-4ubuntu16, 231-9ubuntu3, 232-18ubuntu1 respectively to (1)

  3) DNS resolution should be available once systemd has reached 'network-online.target' state
  4) Sometimes systemd-resolved has not become active prior to network-online.target and DNS service is not available.

  
  The remaining issue for the systemd-resolved.service unit is that it needs to include a Before=network-online.target to ensure it's ordered to run before systemd reaches 'network-online.target'

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