User Manual

C HAPTER 28 | Authentication Commands
Secure Shell
– 896 –
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
Console#ip ssh crypto zeroize dsa
Console#
RELATED COMMANDS
ip ssh crypto host-key generate (895)
ip ssh save host-key (896)
no ip ssh server (892)
ip ssh save host-key This command saves the host key from RAM to flash memory.
SYNTAX
ip ssh save host-key
DEFAULT SETTING
Saves both the DSA and RSA key.
COMMAND MODE
Privileged Exec
EXAMPLE
Console#ip ssh save host-key dsa
Console#