sshd (the server) closes the connection if it doesn’t hear anything from the client for a while. You can tell your client to send a sign-of-life signal to the server once in a while.
The configuration for this is in the file
~/.ssh/config, create it if the configuration file does not exist. To send the signal every four minutes (240 seconds) to the remote host, put the following in your
Host * ServerAliveInterval 240
Also make sure to run, to prevent config file to be world-readable:
chmod 600 ~/.ssh/config
We can keep our ssh connection alive by having following Global configurations. Add the following line to the