Securing Windows NT: How to Hide the Last Logged on User Name
By default, NT 4.0 displays the last person who logged onto
the system. This can be considered to be a security threat, especially
in the case of those who choose their password to be same as
their Username. To disable this bug which actually is a feature,
go to the following key in the registry editor:
HKEY_LOCAL_MACHINE\Software\Microsoft\WindowsNT\CurrentVersion\Winlogon
Click and select the ReportBookOK item and create a new string
value called DontDisplayLastUserName. Modify it and set its value
to 1.
As a system administrator, you can ensure that the passwords
chosen by the users are not too lame or too easy to guess. NT
has this lovely utility called the User Manager which allows
the administrator to set the age limit of the password which
forces the users to change the password after a certain number
of days. You can also set the minimum length of passwords and
prevent users to use passwords which already have been used earlier
and also enable account lockouts which will deactivate an account
after a specified number of failed login attempts.
When you log on to Win NT, you should disable Password Caching,
this ensures Single NT Domain login and also prevents secondary
Windows Logon screen.
Simply copy the following lines to a plain text ASCII editor
like: Notepad and save it with an extension, .reg
**********DISABLE.reg**********
REGEDIT4
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Network]
"DisablePwdCaching"=dword:00000001
**********DISABLE.reg**********
To Enable Password Caching use the following .reg file:
**********Enable.reg***********
REGEDIT4
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Network]
"DisablePwdCaching"=dword:00000000
*********Enable.reg************
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