[tor-bugs] #25456 [Core Tor/Tor]: tor's systemd service should SIGHUP tor on resume/thaw after sleep/hibernate

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#25456: tor's systemd service should SIGHUP tor on resume/thaw after
sleep/hibernate
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     Reporter:  isis       |      Owner:  (none)
         Type:             |     Status:  new
  enhancement              |
     Priority:  Medium     |  Milestone:  Tor: 0.3.4.x-final
    Component:  Core       |    Version:
  Tor/Tor                  |
     Severity:  Normal     |   Keywords:  packaging, systemd, configuration
Actual Points:             |  Parent ID:
       Points:  1          |   Reviewer:
      Sponsor:             |
  Sponsor8-can             |
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 I very often need to SIGHUP my tor process after reopening my laptop after
 the new guard algorithm was merged (I had to also do so before, but now
 it's seemingly worse), and I hear from other users who are more
 technically-inclined that there experience is the same. Humans doing
 things computers can do is bad UX. I propose, at the very least, on *nix
 systems that we modify the systemd `.service` file(s) we already
 distribute to do this for the human. (We should also figure out some
 equivalent for MacOS, Windows, and mobile, if possible, but those can be
 separate tickets.)

 From reading [https://askubuntu.com/questions/661715/make-a-script-start-
 after-suspend-in-ubuntu-15-04-systemd/661747#661747 this question] that
 femme linked me to, it looks like the way to do it is either a script
 which gets installed into `/lib/systemd/system-sleep/`, or a second
 `.service` file that is wanted by `suspend.target`. I'm not sure which is
 cleaner?  I would assume the `.service` file approach is cleaner, because
 then it can be selectively enabled/disabled by the human more easily.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/25456>
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