webmux is a stand alone server you can run anywhere It will store all necessary connection information and allow you to easily connect to any server with a click of a button.
The server opens the connections for you, so if you close the window, the terminal stays open. This also allows multiple users to interact with the same windows simultaneously.
Just run the container :
docker run -d -p 8080:8080 --name webmux cquad/webmux