Dell PowerConnect 8024 User Configuration Manual page 228

The password lockout feature disables local access to the switch for a given
user name if the user fails to supply the correct password within the
configured number of attempts. Failed attempts to log on do not need to
close together in time; consecutive login failures separated by extensive time
periods can still cause a user to be locked out. The failed attempt count for a
user name is reset upon successfully logging on to the switch or rebooting or
resetting the switch.
The configuration example in this section shows how to configure password
lockout for a user with the user name abc on the serial port. This example
requires a few extra steps because the serial port, by default, does not have an
access method that enables password lockout. By default, Telnet and SSH
access methods have password lockout enabled through the networkList
authentication method. With the exception of the line console command,
the steps in this example are similar to the steps required for enabling lockout
for a user on the out-of-band port.
To configure the switch:
1 Create a local user
console#configure
console(config)#username abc password password
2 Configure the lockout policy globally and specify that the user can attempt
to enter a password three times before being locked out.
console(config)#passwords lock-out 3
console(config)#exit
3 View information about the users in the local database.
console#show users accounts
UserName Privilege
-------- ---------
abc
admin
228
Controlling Management Access
Password
Aging
--------
1 ---
15 ---
Password
Expiry date
--------------------
---
---
Lockout
--------
False
False