3com 5500-ei pwr Instruccion De Instalación

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Password Control Configuration Operations 
Introduction to Password Control Configuration 
The password control feature is designed to manage the following passwords: 
Telnet passwords: passwords for logging into the switch through Telnet. 
SSH passwords: passwords for logging into the switch through SSH. 
FTP passwords: passwords for logging into the switch through FTP. 
Super passwords: passwords used by the users who have logged into the switch and are changing 
from a lower privilege level to a higher privilege level. 
Password control provides the following functions: 
Table 1-1 Functions provided by password control 
Function 
Description 
Application 
Password aging time setting: Users can set the aging 
time for their passwords. If a password ages out, its user 
must change it, otherwise the user cannot log into the 
device. 
All passwords 
Password change: After a password ages out, the user 
can change it when logging into the device. 
Password aging 
Alert before password expiration: Users can set their 
respective alert time. If a user logs into the system when 
the password is about to age out (that is, the remaining 
usable time of the password is no more than the set alert 
time), the switch will alert the user to the forthcoming 
expiration and prompts the user to change the password 
as soon as possible. 
Telnet SSH and 
Super passwords 
Limitation of 
minimum 
password 
This function is used to limit the minimum length of the 
passwords. A user can successfully configure a 
password only when the password is not shorter than its 
minimum length. 
All passwords 
History password recording function: The password 
configured and once used by a user is called a history 
(old) password. The switch is able to record the user 
history password. Users cannot successfully replace 
their passwords with history passwords. 
History 
password 
function 
History password protection function: History passwords 
are saved in a readable file in the Flash memory, so they 
will not be lost when the switch reboots. 
All passwords