How to enable SSH on Cisco ASA 5520?

Generate rsa key pair:

1. crypto  key generate rsa modulus

Set up a local user name and pwd:

2.  username x password x

3. passwd x

Enable ssh access for a host or subnet and specify the interface they reside on:

4. ssh x.x.x.x x.x.x.x

To use the local database for authentication:

5.  aaa authentication ssh console LOCAL