My minecraft server shuts down when I terminate my ssh session...

[Handmeat]

So I have an HPZ600 box running ubuntu server with a modded minecraft server living on it. Now, it's been a very long time since I messed with minecraft and this is the first time I have hosted on a box other than my local machine or rented space on the internet; but something curious happened last night. 

 

As the whole thing is headless, I SSH in from my personal rig to the server box both to set it up and to actually start the server and do things from console. Now, last night (or more accurately this morning), when I decided it was time to go to bed, I killed my ssh session (happened both with powershell and PuTTY) and the server shut down. Now, my theory is that by killing the session, it logged out my user and therefore killed any active processes, but that doesn't feel right, as it should just leave everything running, right? Running Ubuntu Server 18.04 and the modpack is Life in The Village 1.14. Any help would be muchly appreciated as I like to put my pc to sleep when I go to sleep as the RGB is rather bright...

 

Edit: I feel bad for not thoroughly googling this first. Apparently I need to use screen to actually start the server in a seperate terminal. I think I can figure out how to do that. 

Edited September 16, 2019 by Handmeat
fairly certain I answered my own question...

[KarathKasun]

Screen sets up a "virtual" terminal on the server that you can connect to once you connect via SSH.

 

The reason that the servier dies when you kill the terminal without doing this is that by default it is created as a child process of the open SSH connection.  When the parent process is killed, the child processes are also killed.

[Handmeat]

2 minutes ago, KarathKasun said:

Screen sets up a "virtual" terminal on the server that you can connect to once you connect via SSH.

 

The reason that the servier dies when you kill the terminal without doing this is that by default it is created as a child process of the open SSH connection.  When the parent process is killed, the child processes are also killed.

So just to make sure I understand this, I can just run screen as a command and it will give me new terminal window from within which I can then start the server itself? or Can I just include screen in my server start script?

[brwainer]

Method A (I prefer):

run “screen”

run your startup script

once you see the server is good, press Ctrl+A then D (Ctrl+A means enter a command, D means Disconnect)

you are now safe to log out. If you want to reattach to the screen virtual terminal, run “screen -r”. Remember to disconnect from screen before closing your SSH session.

 

Method B:

you can run “screen” followed by your script, and it will do everything in one command. Check the help documentation for screen.

[Handmeat]

18 minutes ago, brwainer said:

Method A (I prefer):

run “screen”

run your startup script

once you see the server is good, press Ctrl+A then D (Ctrl+A means enter a command, D means Disconnect)

you are now safe to log out. If you want to reattach to the screen virtual terminal, run “screen -r”. Remember to disconnect from screen before closing your SSH session.

 

Method B:

you can run “screen” followed by your script, and it will do everything in one command. Check the help documentation for screen.

Thank you very much!

[GimmeGaming]

Just add the minecraft start script as a service so it auto starts when they server boots.

[HiddenFox]

I use Tmux on my linux box. works quite well.