Freebsd – How to list the user that started a service in freebsd

freebsdjailpsservicetruenas

Just a simple question, but I've looked everywhere and can't seem to find this. I just need to know what user started a particular service. In this case, I want to know what user runs the headphones service (headphones plugin in a FreeNAS jail).

I tried using service headphones status but that just gives me the PID (23069). Is there a way to list the user using the PID instead? I tried that as well using: ps 23069 but that only gives the time running and path.

Best Answer

'ps aux' will do the tip to list all users process

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Freebsd – How to tell if a freebsd jail is up to date

That section of the handbook doesn't make any reference to freebsd-update, but my understanding of how freebsd-update works implies that your steps aren't quite correct. In particular, I don't think freebsd-update touches your source directory, so you're building/installing whatever you have in /usr/src (probably -RELEASE source if you didn't run cvsup).

You probably want to run freebsd-update in the jail just like you would on the host & let it do its thing (or cvsup to a fixed source branch & then build/install per the handbook chapter you referenced).

Caveat: I don't actually use freebsd-update. cperciva@ (the author of the tool) listens on the freebsd-questions list though, and he someone on the list should also be able to tell you if my logic above is right or wrong :)

Freebsd – I am going to chop the FreeBSD automounter into little pieces and boil them in oil

Why, hello there Lars! That's a fascinating question you've asked, and after some research I may have found an answer for you.

According to this and other posts out there, it may be possible to set the VFCF_JAIL attribute on the NFS filesystem provider, which would in theory allow jails to perform NFS mounts. This may, in turn, allow one to run amd inside the jail...which would neatly solve this issue.

I'll try rebuilding the kernel this evening to see how things work out. It's not necessarily the greatest solution (since it means you need to make sure this change persists across future kernel updates), but it would be interesting if it works.

And remember...

           ___________    ____                                           
    ______/   \__//   \__/____\                             
  _/   \_/  :           //____\\                             
 /|      :  :  ..      /        \                         
| |     ::     ::      \        /                             
| |     :|     ||     \ \______/     Don't try to rebuild the
| |     ||     ||      |\  /  |        kernel remotely because
 \|     ||     ||      |   / | \         you know you're just
  |     ||     ||      |  / /_\ \        going to hose the server.
  | ___ || ___ ||      | /  /    \    
   \_-_/  \_-_/ | ____ |/__/      \   
                _\_--_/    \      /   
               /____             /  
              /     \           /    
              \______\_________/

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Freebsd – How to tell if a freebsd jail is up to date

Freebsd – I am going to chop the FreeBSD automounter into little pieces and boil them in oil

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