C
HAPTER
24
| Authentication Commands
Secure Shell
– 615 –
EXAMPLE
Console#delete public-key admin dsa
Console#
ip ssh crypto host-
key generate
This command generates the host key pair (i.e., public and private).
SYNTAX
ip ssh crypto host-key generate [dsa | rsa]
dsa – DSA (Version 2) key type.
rsa – RSA (Version 1) key type.
DEFAULT SETTING
Generates both the DSA and RSA key pairs.
COMMAND MODE
Privileged Exec
COMMAND USAGE
◆ The switch uses only RSA Version 1 for SSHv1.5 clients and DSA
Version 2 for SSHv2 clients.
◆ This command stores the host key pair in memory (i.e., RAM). Use the
ip ssh save host-key command to save the host key pair to flash
memory.
◆ Some SSH client programs automatically add the public key to the
known hosts file as part of the configuration process. Otherwise, you
must manually create a known hosts file and place the host public key
in it.
◆ The SSH server uses this host key to negotiate a session key and
encryption method with the client trying to connect to it.
EXAMPLE
Console#ip ssh crypto host-key generate dsa
Console#
RELATED COMMANDS
ip ssh crypto zeroize (616)
ip ssh save host-key (616)