Chapter 10 Install and System Administration for FortiOS 5.0 : Basic Administration : Administrators : Security Precautions : Log in/out warning message
  
Log in/out warning message
For administrators logging in and out of the FortiGate unit, you can include a login disclaimer. This disclaimer provides a statement that must be accepted or declined where corporations are governed by strict usage policies for forensics and legal reasons.
The disclaimer is enabled through the CLI.
To disable an interface:
config system global
set pre-login-banner enable
set post-login-banner enable
end
When set, once the administrator enters their user name and password, the disclaimer appears. They must select either Accept or Decline to proceed. When the post login is enabled, once the administrator logs out they are presented with the same message.
The banner is a default message that you can customize by going to System > Config > Replacement Messages. Select Extended View to see the Admin category and messages.
See Also
Security Precautions
Passwords
 
Disable admin services
Disable the console interface
Disable interfaces
SSH login time out
Administrator lockout
Idle time-out
Administrative ports
Segregated administrative roles