Command Line Reference Guide

SSH Server and SCP Commands
FTOS supports secure shell (SSH) protocol versions 1.5 and 2.0. SSH is a protocol for secure remote login over an
insecure network. SSH sessions are encrypted and use authentication.
crypto key generate
Generate keys for the SSH server.
S5000
Syntax
NOTE: Some of the parameters in this command require licensing to access. For more
information, contact your Dell Networking representative.
crypto key generate {rsa | rsa1}
Parameters
rsa Enter the keyword rsa followed by the key size to generate a SSHv2
RSA host keys. The range is 1024 to 2048 if you did not enable FIPS
mode; if you enabled FIPS mode, you can only generate a 2048-bit
key. The default is 1024.
NOTE: You must have a license to access the FIPS mode. For
more information, contact your Dell Networking representative.
rsa1 Enter the keyword rsa1 followed by the key size to generate a
SSHv1 RSA host keys. The range is 1024 to 2048. The default is 1024.
NOTE: This option is not available in FIPS mode.
Defaults Key size 1024; if you enable FIPS mode, the key size is 2048.
Command Modes CONFIGURATION
Command History
Version 9.0(1.3) Introduced on the S5000.
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)#
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