Is there a tool/command to reconnect a SSH

Question

I often need to ssh to a build machine (on ubuntu) for building software. But sometime, my connection to the machine is disconnected (e.g. due to Wifi not stable).

Is there anyway I can 'reconnect my old ssh session? so that I can keep my build job?

Now, the build job on build machine still runs but i have no idea when it will end in my new ssh shell.

Thank you.

Answer 1

Off the top of my head I can think of two tools:

• Screen is a full-screen window manager that multiplexes a physical terminal between several processes, typically interactive shells. It allows you to disconnect from the server but keep your session running.
• Mosh Mobile shell, which is a remote terminal application that allows roaming, supports intermittent connectivity.

Screen has been around for a long time and I've personally used it several times. It's really handy. Mosh is the new kid on the block and looks really interesting. I haven't gotten around to test driving it yet.

Answer 2

tmux is another option to check out.

From the tmux homepage:

tmux is a terminal multiplexer: it enables a number of terminals (or windows), each running a separate program, to be created, accessed, and controlled from a single screen. tmux may be detached from a screen and continue running in the background, then later reattached.