Reference Guide

Security | 1361
Parameters
Defaults
Key size 1024; If FIPS mode is enabled, the key size is 2048.
Command Modes
CONFIGURATION
Command
History
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)#
Usage
Information
The host keys are required for key-exchange by the SSH server. If the keys are not
found when the server is enabled (
ip ssh server enable), the keys are automatically
generated.
This command requires user interaction and will generate a prompt prior to
overwriting any existing host keys.
Related
Commands
rsa
Enter the keyword rsa followed by the key size to generate a SSHv2
RSA host keys.
Range: 1024 to 2048 if FIPS mode not enabled; if FIPS mode is
enabled, only a 2048-bit key can be generated.
Default: 1024
Note: You must have a license to access the FIPS mode. For more
information, please contact your Dell Force10 representative.
rsa1
Enter the keyword rsa1 followed by the key size to generate a
SSHv1 RSA host keys.
Range: 1024 to 2048
Default: 1024
Note: This option is not available in FIPS mode.
Version 8.3.19.0 Introduced on S4820T
Version 8.3.19.0 Added support for FIPS mode on S4820T.
Version 8.3.12.0 Added support for FIPS mode on S4810.
Version 8.3.7.0 Introduced on S4810
Version 7.6.1.0 Introduced for S-Series
Version 7.5.1.0 Introduced for C-Series
pre-Version 6.1.1.0 Introduced for E-Series
Note: Only a user with superuser permissions should generate host-keys.
ip ssh server Enable the SSH server.
show crypto Display SSH host public keys