Installing CrashPlan headless on a FreeNAS

The real purpose of this post is to send google juice to the forum post that gives a working guide: https://forums.freenas.org/index.php?threads/tested-crashplan-4-5-setup.41418/. When I was searching for a guide yesterday, I got many postings from last year and before, none of which worked. This one does, though it does retain the extra-complicated bit of connecting to the server via an SSH tunnel instead of asking CrashPlan to just listen on all interfaces and connecting directly. I understand it's there because the conversation between the CP client and server is not encrypted, but honestly on my home network, I'm ok with that. My only suggestion is to give people the option, since asking CrashPlan to listen on all interfaces is way easy. (change the third field of /var/lib/.ui_info from 127.0.0.1 to 0.0.0.0).

Thanks, Martin. Your guide was a huge help.

[Addendum] In order to stop my laptop (which I am only using to connect to the CrashPlan instance on the NAS) from running CrashPlan, I needed to stop the CrashPlan service on my laptop and prevent it from starting again when restarting my laptop:

  sudo launchctl unload /Library/LaunchDaemons/com.crashplan.engine.plist
  sudo launchctl disable system/com.crashplan.engine