Keep script running after logout

Question

I'm trying to run DiabloMiner, and keep it running after I logout. I try to use screen.

So what I do is:

1. login to the host, with -X switch. Like: ssh -X myhost
2. run screen
3. run my script, i.e. ./DiabloMiner-Linux.sh -u my_user -p my_password -dd > log.txt
4. detach from screen by Ctrl+A, then D
5. try to logout, by Ctrl+D

Then my logout hangs. All I can do is Ctrl+C, but then when I login again, I can see by ps that DiabloMiner died.

How to run it to survive logout from myhost?

Answer 1

I'm assuming DiabloMiner has a GUI which is why you've opted to use the -X option. Screen creates a virtual psuedo-terminal with disconnect and background functionality. However, the -X option tells ssh to tunnel any X11 traffic back to the host you are on. This isn't what you want as when you close the ssh session, you break the X11 traffic causing DiabloMiner to die.

The only way you can keep a GUI application (unless it has a headless mode, which would eliminate the need for -X altogether) running on a remote host is to start a remote X server for running the application. You may want to look into vncserver and vncviewer for this purpose.

Answer 2

I think you need to research nohup . It works good when using a console program, like a Java console program. For an X-window program, things might be different, but I think nohup is the general thing you are looking for.

Also, gnu screen might help you as well since it has some nohup features.