Edge-Core ECS4110-28T, Management Manual, Page: 859 / 1514

C
HAPTER
24
| Authentication Commands
Secure Shell
– 859 –
D
EFAULT
S
ETTING
Generates both the DSA and RSA key pairs.
C
OMMAND
M
ODE
Privileged Exec
C
OMMAND
U
SAGE
◆
The switch uses only RSA Version 1 for SSHv1.5 clients and DSA
Version 2 for SSHv2 clients.
◆
This command stores the host key pair in memory (i.e., RAM). Use the
ip ssh save host-key command to save the host key pair to flash
memory.
◆
Some SSH client programs automatically add the public key to the
known hosts file as part of the configuration process. Otherwise, you
must manually create a known hosts file and place the host public key
in it.
◆
The SSH server uses this host key to negotiate a session key and
encryption method with the client trying to connect to it.
E
XAMPLE
Console#ip ssh crypto host-key generate dsa
Console#
R
ELATED
C
OMMANDS
ip ssh crypto zeroize (859)
ip ssh save host-key (860)
ip ssh
crypto zeroize
This command clears the host key from memory (i.e. RAM).
S
YNTAX
ip ssh crypto zeroize [ dsa | rsa ]
dsa – DSA key type.
rsa – RSA key type.
D
EFAULT
S
ETTING
Clears both the DSA and RSA key.
C
OMMAND
M
ODE
Privileged Exec
C
OMMAND
U
SAGE
◆
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.