QNAP LOST SSH SHELL ACCESS HOW TO

If the connection terminated then how to reconnect it to see the processes running in the tmux session in the background: Now even if SSH terminal is closed/terminated suddenly tmux session will keep running the started lon-running processes on the instance/server. Run the command to start long-running processes in the tmux session.It will open a window in the same terminal. Terminal Multiplexer ( tmux) to start the tmux session:

I find tmux is the good solution to avoid termination of processes that we want to run even after the terminal is closed. But wait if the connection with my SSH terminal is terminated then the long-running processes stop immediately and hence I have to re-run them once again once the ssh terminal is restarted or from a new ssh terminal. Where I have to start SSH terminal and from the terminal, I have to keep the terminal connected to run the process. I have to keep running the long-running processes on a google cloud platform's VM instance/server (with OS: Ubuntu 16.0). Tmux is a good option available to run your long-running processes in the background. for that reason, I always resume with screen -d -r to ensure that if another shell is attached to my screen session, it will be detached before I resume it on my current system.

if you log in from a bunch of different systems, you may have accidentally left yourself attached to an active screen session on a different computer.

CTRL+ a, p to switch to the previous window in your screen session.

CTRL+ a, n to switch to the next window in your screen session.

While in a screen session, try ctrl+a,? to learn a few common commands.

Screen is a very comprehensive tool, and can do a lot more than what I've described. Then check out the progress of your long-running process! When you come back to your laptop: ssh -r #resume the screen session It is super awesome! ssh #start a screen sessionĬTRL+ a, d to detatch from your screen session exit #disconnect from the server, while run-a-long-process continues

Qnap lost ssh shell access