Information
Microsoft recommends that you use this setting, if appropriate to your environment and your organization's business requirements, to help protect end user computers. This policy setting specifies a text message that displays to users when they log on. Displaying a warning message before logon may help prevent an attack by warning the attacker about the consequences of their misconduct before it happens. It may also help to reinforce corporate policy by notifying employees of the appropriate policy during the logon process. This text is often used for legal reasons for example, to warn users about the ramifications of misusing company information or to warn them that their actions may be audited. Note: Any warning that you display should first be approved by your organization's legal and human resources representatives.
Solution
Configure the following Group Policy setting in a manner that is consistent with the security and operational requirements of your organization-
Computer Configuration\Windows Settings\Security Settings\Local Policies\Security Options\Interactive logon- Message text for users attempting to log on
Impact- Users will see a message in a dialog box before they can log on to the server console. Note that Windows XP and later versions of Windows support logon banners that can exceed 512 characters in length and that can also contain carriage-return line-feed sequences. However, Windows 2000-based clients cannot interpret and display these messages. You must use a Windows 2000-based computer to create a logon message policy that applies to Windows 2000-based computers. If you inadvertently create a logon message policy on a Windows Vista-based or Windows XP Professional-based computer and you discover that it does not display properly on Windows 2000-based computers, do the following- Change the setting to Not Defined, and then change the setting to the desired value by using a Windows 2000-based computer. Important- If you do not reconfigure this setting to Not Defined before reconfiguring the setting using a Windows 2000-based computer, the changes will not take effect properly.