ssh

For anyone doing long-lived remote work over SSH, tmux keeps sessions, windows, and panes alive across disconnects — closing a window does not kill the work. This table groups create/delete/switch flows for sessions, windows and panes, copy-mode keystrokes, and common .tmux.conf settings.

screen is the terminal multiplexer that ships with almost every Linux distribution, a lighter alternative to tmux. This reference covers creating, detaching, and reattaching sessions (Ctrl-a d to detach, -r to return), multiple windows and splits, plus the -x flag to share one session across two terminals — so a dropped SSH connection stops interrupting long-running work.

An SSH handbook for engineers who need passwordless login, bastion hopping across environments, and linking their local machine to remote networks — covering ssh -i/-p/-vvv login debugging, ssh-keygen & ssh-copy-id key management, ~/.ssh/config aliases & ProxyJump, -L/-R/-D port forwarding, and the known_hosts and key-permission gotchas.