Reference Guide

Version 8.3.12.0 Added support for FIPS mode on the S4810.
Version 8.3.7.0 Introduced on the S4810.
Version 7.6.1.0 Introduced on the S-Series.
Version 7.5.1.0 Introduced on the C-Series.
pre-Version
6.1.1.0
Introduced on the E-Series.
Usage
Information
The host keys are required for key-exchange by the SSH server. If the keys are not found when
you enable the server (ip ssh server enable), the keys are automatically generated.
This command requires user interaction and generates a prompt prior to overwriting any
existing host keys.
NOTE: Only a user with superuser permissions should generate host-keys.
Example
FTOS#conf
FTOS(conf)#crypto key generate rsa1
Enter key size <1024-2048>. Default<1024>: 1024
Host key already exists. Do you want to replace. [y/n] :y
FTOS(conf)#
Related
Commands
ip ssh server — enables the SSH server.
show crypto — displays the SSH host public keys.
debug ip ssh
Enables collecting SSH debug information.
Z9000
Syntax
debug ip ssh {client | server}
To disable debugging, use the no debug ip ssh {client | server} command.
Parameters
client Enter the keyword client to enable collecting debug information
on the client.
server Enter the keyword server to enable collecting debug information
on the server.
Defaults Disabled on both client and server.
Command Modes EXEC
Command History
This guide is platform-specific. For command information about other platforms, refer to the
relevant FTOS Command Line Reference Guide .
The following is a list of the FTOS version history for this command.
Version 8.3.19.0 Introduced on the S4820T.
1266