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Should I close SSH?
Obviously, it’s closed abruptly, without proper SSH cleanup. So it may trigger some warning in the server log. Closing the session is particularly important, when the process is long running, but the session itself is used only shortly. Anyway, it’s a good practice to close the session no matter what.
How do I exit SSH safely?
Try using the ssh connection termination escape sequence. In the ssh session, enter ~. (tilde dot). You won’t see the characters when you type them, but the session will terminate immediately.
How do I end a ssh session in putty?
Exit Putty. To end the Putty session, type the logout command such as exit or logout. This command might vary between servers. You can close the session by using the Close button.
How to keep processes running after ending SSH session?
There are two major programs you can use to maintain programs and terminal state over multiple ssh connections. They are screen (the incumbent, but unfortunately unmaintained. Apparently being actively developed now) and tmux (newer, actively maintained).
What does it mean to control terminal in SSH?
When you logged in, the SSH daemon allocated a pseudo-terminal for you and attached it to your user’s configured login shell. This is called the controlling terminal. Every program you start normally at that point, no matter how many layers of shells deep, will ultimately trace its ancestry back to that shell.
How can I run a command which will survive terminal close?
Screen can be installed on virtually all Linux and Unix derivatives. Hitting Ctrl + A and (lower case) C will start a second session. This would allow you to toggle back and forth between the initial session by hitting Ctrl + A and 0 or the newer session by hitting Ctrl + A and 1. You can have up to ten sessions in one terminal.
What happens when my SSH connection is dead?
They will get killed, but not necessarily immediately. It depends on how long it takes for the SSH daemon to decide that your connection is dead. What follows is a longer explanation that will help you understand how it actually works.