Chapter 8
| Authentication Commands
Secure Shell
– 240 –
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 (239)
ip ssh save host-key (240)
no ip ssh server (236)
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#
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