tmux

Tmux keeps a terminal session running on a remote box even after you disconnect. This is useful during a pentest when you SSH into a host and want a long-running command (a scan, a brute force, a reverse shell listener) to survive a dropped connection.

Detach and reattach a session

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ssh username@remote_host
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tmux
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your_command

Inside the tmux session, press Ctrl-b then d to detach and close your SSH connection. When you reconnect, reattach with:

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tmux attach -t 0

Manage windows

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Ctrl-b c     # Create a new window in the current session
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Ctrl-b 0-9   # Switch to window 0-9