> # Configuring SSH Services

> A secure SSH connection with an RSA key is available as a default on all Cisco MDS 9000 Family switches. If you require a secure SSH connection with a DSA key, you need to disable the default SSH connection, Generate a DSA key and then enable the SSH connection (see the "Generating the SSH Server Key Pair" topic).

> Caution | If you are logging in to a switch through SSH and you have issued the aaa authentication login default none command, you must enter one or more key strokes to log in. If you press the Enter key without entering at least one keystroke, your log in will be rejected.

> This section includes the following topics:

> - Generating the SSH Server Key Pair
> - Overwriting a Generated Key Pair
> - Enabling SSH or Telnet Service

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