Cisco Nexus 5000 Series Command Reference Release 4.0(1a)N2(1) (OL-16599-01, March 2009)

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Cisco Nexus 5000 Series Command Reference
OL-16599-01
Chapter 6 Security Commands
ssh key
ssh key
To create a Secure Shell (SSH) server key, use the ssh key command. To remove the SSH server key, use
the no form of this command.
ssh key {dsa [force] | rsa [length [force]]}
no ssh key [dsa | rsa]
Syntax Description
Command Default 1024-bit length.
Command Modes Configuration mode
Command History
Usage Guidelines The Cisco NX-OS software supports SSH version 2.
If you want to remove or replace an SSH server key, you must first disable the SSH server using the no
ssh server enable command.
Examples This example shows how to create an SSH server key using RSA with the default key length:
switch(config)# ssh key rsa
This example shows how to create an SSH server key using RSA with a specified key length:
switch(config)# ssh key rsa 768
This example shows how to replace an SSH server key using DSA with the force option:
switch(config)# no ssh server enable
switch(config)# ssh key dsa force
switch(config)# ssh server enable
dsa Specifies the Digital System Algrorithm (DSA) SSH server key.
force (Optional) Forces the generation of a DSA SSH key even if previous ones are
present.
rsa Specifies the Rivest, Shamir, and Adelman (RSA) public-key cryptography
SSH server key.
length (Optional) Number of bits to use when creating the SSH server key. The
range is from 768 to 2048.
Release Modification
4.0(0)N1(1a) This command was introduced.