autossh

Run, monitor and restart SSH connections. Auto-reconnects to keep port forwarding tunnels up. Accepts all ssh flags. More information: <https://www.harding.motd.ca/autossh>.

Install

All systems
curl cmd.cat/autossh.sh
Debian Debian
apt-get install autossh
Ubuntu
apt-get install autossh
Alpine
apk add autossh
Arch Arch Linux
pacman -S autossh
image/svg+xml Kali Linux
apt-get install autossh
Fedora
dnf install autossh
Windows (WSL2)
sudo apt-get update sudo apt-get install autossh
OS X
brew install autossh
Raspbian
apt-get install autossh
Dockerfile
dockerfile.run/autossh
Docker
docker run cmd.cat/autossh autossh powered by Commando

Run, monitor and restart SSH connections. Auto-reconnects to keep port forwarding tunnels up. Accepts all ssh flags. More information: <https://www.harding.motd.ca/autossh>.

  • Start an SSH session, restarting when a monitoring port fails to return data:
    autossh -M monitor_port "ssh_command"
  • Forward a local port to a remote one, restarting when necessary:
    autossh -M monitor_port -L local_port:localhost:remote_port user@host
  • Fork `autossh` into the background before executing `ssh` and don't open a remote shell:
    autossh -f -M monitor_port -N "ssh_command"
  • Run in the background, with no monitoring port, and instead send SSH keep-alive packets every 10 seconds to detect failure:
    autossh -f -M 0 -N -o "ServerAliveInterval 10" -o "ServerAliveCountMax 3" "ssh_command"
  • Run in the background, with no monitoring port and 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
  • Run in the background, logging `autossh` debug output and `ssh` verbose output to files:
    AUTOSSH_DEBUG=1 AUTOSSH_LOGFILE=path/to/autossh_log_file.log autossh -f -M monitor_port -v -E path/to/ssh_log_file.log ssh_command

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