C
HAPTER
23
| Authentication Commands
Secure Shell
– 831 –
SECURE SHELL
This section describes the commands used to configure the SSH server.
Note that you also need to install a SSH client on the management station
when using this protocol to configure the switch.
N
OTE
:
The switch supports both SSH Version 1.5 and 2.0 clients.
Configuration Guidelines
The SSH server on this switch supports both password and public key
authentication. If password authentication is specified by the SSH client,
then the password can be authenticated either locally or via a RADIUS or
TACACS+ remote authentication server, as specified by the authentication
login command. If public key authentication is specified by the client, then
you must configure authentication keys on both the client and the switch
as described in the following section. Note that regardless of whether you
use public key or password authentication, you still have to generate
authentication keys on the switch and enable the SSH server.
Table 79: Secure Shell Commands
Command Function Mode
ip ssh authentication-
retries
Specifies the number of retries allowed by a client GC
ip ssh server Enables the SSH server on the switch GC
ip ssh server-key size Sets the SSH server key size GC
ip ssh timeout Specifies the authentication timeout for the SSH
server
GC
copy tftp public-key Copies the user’s public key from a TFTP server to the
switch
PE
delete public-key Deletes the public key for the specified user PE
disconnect Terminates a line connection PE
ip ssh crypto host-key
generate
Generates the host key PE
ip ssh crypto zeroize Clear the host key from RAM PE
ip ssh save host-key Saves the host key from RAM to flash memory PE
show ip ssh Displays the status of the SSH server and the
configured values for authentication timeout and
retries
PE
show public-key Shows the public key for the specified user or for the
host
PE
show ssh Displays the status of current SSH sessions PE
show users Shows SSH users, including privilege level and public
key type
PE
To Next Page
Loading...
Need help?
General
