Supermicro SSE-G2252, User Manual

Page: 775 / 1401

Chapter 23: Authentication Commands
Secure Shell
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•
The SSH server uses DSA or RSA for key exchange when the client first
establishes a connection with the switch, and then negotiates with the
client to select either DES (56-bit) or 3DES (168-bit) for data
encryption.
•
You must generate DSA and RSA host keys before enabling the SSH
server.
E
XAMPLE
Console#ip ssh crypto host-key generate dsa
Console#configure
Console(config)#ip ssh server
Console(config)#
R
ELATED
C
OMMANDS
ip ssh crypto host-key generate (787)
show ssh (790)
ip ssh server-key
size
This command sets the SSH server key size. Use the no form to restore the
default setting.
S
YNTAX
ip ssh server-key size key-size
no ip ssh server-key size
key-size – The size of server key. (Range: 512-896 bits)
D
EFAULT
S
ETTING
768 bits
C
OMMAND
M
ODE
Global Configuration
C
OMMAND
U
SAGE
The server key is a private key that is never shared outside the switch.
The host key is shared with the SSH client, and is fixed at 1024 bits.
E
XAMPLE
Console(config)#ip ssh server-key size 512
Console(config)#
ip ssh timeout
This command configures the timeout for the SSH server. Use the no form
to restore the default setting.
S
YNTAX
ip ssh timeout seconds