3Com SuperStack 4 Configuration Manual page 361

Table 452 Configuring Authentication Type
Operation
Configure authentication type
Remove authentication type setting undo ssh user
If the configuration is RSA authentication type, then the RSA public key of the
client user must be configured on the Switch, that is to perform the 7 and 8 serial
number marked configuration.
By default, no authentication type is specified for a new user, so they cannot
access the Switch.
Defining Update Interval of Server Key
Perform the following configurations in System View.
Table 453 Defining Update Interval of Server Key
Operation
Define update interval of server key
Restore the default update interval
By default, the system does not update server key.
Defining SSH Authentication Timeout Value
Perform the following configurations in System View.
Table 454 Defining SSH Authentication Timeout Value
Operation
Define SSH authentication timeout value
Restore the default timeout value
By default, the timeout value for SSH authentication is 60 seconds.
Defining SSH Authentication Retry Value
Setting SSH authentication retry value can effectively prevent malicious registration
attempt.
Perform the following configurations in System View.
Table 455 Defining SSH Authentication Retry Value
Operation
Define SSH authentication retry value ssh server authentication-retries
Restore the default retry value
By default, the retry value is 3.
Entering Public Key Edit View and Editing Public Key
You can enter the public key edit view and edit the client public key.
Command
username
ssh user authentication-type {
password | rsa | all }
username
authentication-type
Command
ssh server rekey-interval
undo ssh server rekey-interval
Command
ssh server timeout
undo ssh server timeout
Command
undo ssh server authentication-retries
SSH Terminal Services 373
hours
seconds
times