Cisco Cisco Email Security Appliance C170 Guia Do Utilizador

Locking a user account prevents a local user from logging into the appliance. A user account can be 
locked in one of the following ways:

AsyncOS locks a user account if the user exceeded the maximum number of failed login attempts 
defined in the Local User Account & Passphrase Settings section. 

Administrators can manually lock user accounts for security purposes using the System 
Administration > Users page. 

AsyncOS displays the reason why the user account was locked when you view the user account on the 
Edit User page. 

To unlock a user account, open the user account by clicking on the user name in the Users listing and 
click Unlock Account. 

To manually lock a local user account, open the user account by clicking on the user name in the Users 
listing and click Lock Account. AsyncOS displays a message saying that the user will be unable to log 
into the appliance and asks if you want to continue.

You can also configure all local user accounts to lock after users fail to login successfully after a 
configured number of attempts. For more information, see 

If you lock the admin account, you can only unlock it by logging in as the admin through a serial 
communications connection to the serial console port. The admin user can always access the appliance 
using the serial console port, even when the admin account is locked. See 

 for more information on accessing the appliance using the serial console port.

You can define user account and passphrase restrictions to enforce organizational passphrase policies. 
The user account and passphrase restrictions apply to local users defined on the Cisco appliance. You 
can configure the following settings:

User account locking. You can define how many failed login attempts cause the user to be locked 
out of the account. 

Passphrase lifetime rules. You can define how long a passphrase can exist before the user is 
required to change the passphrase after logging in.

Passphrase rules. You can define what kinds of passphrases users can choose, such as which 
characters are optional or mandatory.

You define user account and passphrase restrictions on the System Administration > Users page in the 
Local User Account & Passphrase Settings section. 

Choose System Administration > Users. 

Scroll to the Local User Account & Passphrase Settings section. 

Click Edit Settings.