Secure Shell Commands
25-21
25
Related Commands
ip ssh crypto zeroize (25-21)
ip ssh save host-key (25-21)
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 (25-20)
ip ssh save host-key (25-21)
no ip ssh server (25-17)
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 crypto zeroize dsa
Console#
Console#ip ssh save host-key dsa
Console#
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