Specifying the SSH service port

About the SSH service port

The default port of the SSH service is 22. You can specify another port for the SSH service to improve security of SSH connections.

Restrictions and guidelines

If you modify the SSH port number when the SSH server is enabled, the SSH service is restarted and all SSH connections are terminated after the modification. SSH users must reconnect to the SSH server to access the server.

If you set the SSH port to a well-known port number, the service that uses the well-known port number might fail to start. Well-known port numbers are in the range of 1 to 1024.

Procedure

  1. Enter system view.

    system-view

  2. Specify the SSH service port.

    ssh server port port-number

    By default, the SSH service port is 22.