C
OMMAND
L
INE
I
NTERFACE
4-54

ip ssh crypto zeroize

This command clears the host key from memory (i.e. RAM).
Syntax
ip ssh crypto zeroize [dsa | rsa]
dsa – DSA key type.
rsa – RSA key type.
Default Setting
Clears both the DSA and RSA key.
Command Mode
Privileged Exec
Command Usage
This command clears the host key from volatile memory (RAM). Use
the no ip ssh save host-key command to clear the host key from flash
memory.
The SSH server must be disabled before you can execute this
command.
Example
Related Commands
ip ssh crypto host-key generate (4-53)
ip ssh save host-key (4-54)
no ip ssh server (4-49)

ip ssh save host-key

This command saves host key from RAM to flash memory.
Syntax
ip ssh save host-key [dsa | rsa]
dsa – DSA key type.
rsa – RSA key type.
Console#ip ssh crypto zeroize dsa
Console#