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
â—†
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.
â—†
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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