tldr/pages/common/autossh.md

29 lines
1.3 KiB
Markdown
Raw Normal View History

# autossh
> Runs, monitors and restarts SSH connections.
> Auto-reconnects to keep port forwarding tunnels up. Accepts all ssh flags.
2016-01-13 14:04:46 +03:00
- Open an SSH session, restarting when a monitoring port fails return data:
`autossh -M {{monitor_port}} {{ssh_command}}`
2016-01-13 14:04:46 +03:00
- Open an SSH session which forwards a local port to a remote one, restarting if necessary:
`autossh -M {{monitor_port}} -L {{local_port}}:localhost:{{remote_port}} {{user}}@{{host}}`
2016-01-13 14:04:46 +03:00
- Fork before executing ssh (runs in the background) and don't open a remote shell:
`autossh -f -M {{monitor_port}} -N {{ssh_command}}`
2016-01-13 17:26:38 +03:00
- Run autossh in the background, with no monitoring port, instead relying on SSH keep-alives every 10 seconds to detect failure:
`autossh -f -M 0 -N -o "ServerAliveInterval 10" -o "ServerAliveCountMax 3" {{ssh_command}}`
2016-01-13 14:04:46 +03:00
- Run autossh in the background, with no monitoring port, no remote shell, exiting if the port forward fails:
`autossh -f -M 0 -N -o "ServerAliveInterval 10" -o "ServerAliveCountMax 3" -o ExitOnForwardFailure=yes -L {{local_port}}:localhost:{{remote_port}} {{user}}@{{host}}`
2016-01-13 17:26:38 +03:00
- Run autossh in the background with debug output logged to a file and ssh verbose output logged to a second file:
`AUTOSSH_DEBUG=1 AUTOSSH_LOGFILE={{log_file}} autossh -f -M {{monitor_port}} -v -E {{ssh_log_file}} {{ssh_command}}`