[racket] Running handin-server in headless linux box

I've been running the handin-server on a headless server as well, using
xvfb. However, I'm not using screen.

Instead I've used the systemd units posted
https://gist.github.com/bluephoenix47/9642463 (similar init scripts
could be used). Essentially, I run Xvfb as a daemon and simply run
`racket -l handin-server` with the right DISPLAY. This has the advantage
of automatically launching the server on startup, and restarting if it
dies.

I just ssh and look at the log files when I need to see output.


And if you're interested, I'm working on a bunch of scripts at
https://github.com/bluephoenix47/cs2500-scripts for use with the handin
server. They are currently in pretty rough state, but a good starting
place for automating various things like due dates and posting grades.

William Bowman

On Fri, Mar 14, 2014 at 12:39:19PM -0300, Ismael Figueroa wrote:
> Just an FYI, I managed to run the handin-server in a headless linux server.
> I had to:
> 
> - Install libcairo, libpango, and probably other X11 libraries
> - Install xvfb, which is a virtual/fake framebuffer
> - Log-in using ssh, then run the screen program
> - Inside screen, cd to the folder with the assignments and run xvfb-run
> racket -l handin-server
> - Press Ctrl-A Ctrl-D to detach from screen
> - Log out from the server, and the process is kept running thanks to screen.
> - To get back the output, log-in again and execute "screen -r"
> 
> I saw some email threads from 2012 discussing a similar issue, and the
> suggestion was to use VNC or something like that. I hope this is useful to
> someone!
> 
> Bests,
> -- 
> Ismael

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