You can perform lengthy CLI operations, such as installing or upgrading of Avaya Hybrid Cloud Gateway, in a tmux session.

If the connection with the SSH terminal is reset while the installation or upgrade operations are in progress, you must restart these operations. To prevent this issue, you can start a tmux session before performing a lengthy operation. Commands and processes that you run from a tmux session continue to run even if the connection with the SSH terminal is reset. Therefore, you can reconnect to the tmux session and complete the operation.