[Bug 1645002] Re: ssh sessions are not cleanly terminated on shutdown/restart with systemd

[Nish Aravamudan]

As noted, this was fixed in Debian in 1:7.2p2-6. Both 16.10 and 17.04
have later versions, so this just needs an SRU to 16.04.

** Bug watch added: Debian Bug tracker #751636
   http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=751636

** Also affects: openssh (Debian) via
   http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=751636
   Importance: Unknown
       Status: Unknown

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

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

** Changed in: openssh (Ubuntu Yakkety)
       Status: New => Fix Released

** Changed in: openssh (Ubuntu)
       Status: New => Fix Released

** Changed in: openssh (Ubuntu Xenial)
       Status: New => Triaged

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https://bugs.launchpad.net/bugs/1645002

Title:
  ssh sessions are not cleanly terminated on shutdown/restart with
  systemd

Status in openssh package in Ubuntu:
  Fix Released
Status in openssh source package in Xenial:
  Triaged
Status in openssh source package in Yakkety:
  Fix Released
Status in openssh package in Debian:
  Unknown

Bug description:
  In Ubuntu 16.04, a "reboot" command does not terminate the ssh
  session. This results in clients hanging, until timing out (sometimes
  as much as 120 seconds).

  This also introduces bugs to all  orchestration / automation tools which work over SSH, since they cannot issue their reboot equivalent for Ubuntu 16.04 hosts. For example, have a look at this issue for Fabric:
  https://github.com/fabric/fabric/issues/1488

  The exact same bug has been fixed in Debian in version openssh/1:7.2p2-6. 
  There is a very detailed discussion in their bug tracker:
  https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=751636

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