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سلام دوستان من توي دومين توي يه كلاينت مي خوام با ctrl alt del پسورد يه يوزر رو عوض كنم جالب اينه كه عوض ميشه و حال يوزر هم با پسورد قبلي لاگين مي كنه و هم با پسورد جديد به نظر شما مشكل مي تونه از Enforc password History پاليسي دومين باشه
با تشكر:wacko: ْ
[LEFT][CODE]http://support.microsoft.com/kb/906305/en-us[/CODE]
[B]Windows Server 2003 Service Pack 1 modifies NTLM network authentication behavior[/B]
Microsoft Windows Server 2003 Service Pack 1 (SP1) modifies NTLM network authentication behavior. After you install Windows Server 2003 SP1, domain users can use their old password to access the network for one hour after the password is changed. Existing components that are designed to use Kerberos for authentication are not affected by this change.
To reliably support network access for NTLM network authentication in distributed environments, Windows Server 2003 SP1 modifies the NTLM network authentication behavior as follows:
[LIST][*]After a domain user successfully changes a password by using NTLM, the old password can still be used for network access for a user-definable time period. This behavior allows accounts, such as service accounts, that are logged on to multiple computers to access the network while the password change propagates.[*]The extension of the password lifetime period applies only to network access by using NTLM. Interactive logon behavior is unchanged. This behavior does not apply to accounts that are hosted on stand-alone servers or on member servers. Only domain users are affected by this behavior.[*]The lifetime period of the old password can be configured by editing the registry on a domain controller. No restart is required for this registry change to take effect.[/LIST]
[B]How to change the lifetime period of an old password[/B]
[B]Important[/B] This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base: [URL="http://support.microsoft.com/kb/322756/"]322756[/URL] ([url=http://support.microsoft.com/kb/322756/]How to back up and restore the registry in Windows XP[/url] ) How to back up and restore the registry in Windows
To change the lifetime period of an old password, add a DWORD entry that is named OldPasswordAllowedPeriod to the following registry subkey on a domain controller: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa
To do this, follow these steps:
[LIST=1][*]Click [B]Start[/B], click [B]Run[/B], type regedit, and then click [B]OK[/B].[*]Locate and then click the following registry subkey: [B]HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa [/B][*]On the [B]Edit[/B] menu, point to [B]New[/B], and then click [B]DWORD Value[/B].[*]Type OldPasswordAllowedPeriod as the name of the DWORD, and then press ENTER.[*]Right-click [B]OldPasswordAllowedPeriod[/B], and then click [B]Modify[/B].[*]In the [B]Value data[/B] box, type the value in minutes that you want to use, and then click [B]OK[/B].
[B]Note[/B] The lifetime period is set in minutes. If this registry value is not set, the default lifetime period for an old password is 60 minutes.[*]Quit Registry Editor.
[B]Note[/B] This registry setting does not require a restart to take effect.[/LIST]
[B]Note[/B] This behavior does not cause a security weakness. As long as only one user knows both passwords, the user is still securely authenticated by using either password.
If a user's password is known to be compromised, the administrator should reset the password for that user. The administrator should ask the user to change the password at the next logon to invalidate the old password as soon as possible.
To reset a user's password, follow these steps:
[LIST=1][*]Start Active Directory Users and Computers.[*]Locate the user account whose password must be reset.[*]Right-click the user object, and then click [B]Reset Password[/B].[*]Type the new password in the [B]New password[/B] box and in the [B]Confirm password[/B] box.[*]Click to select the [B]User must change password at next logon[/B] check box, and then click [B]OK[/B].[/LIST]
[B]Note[/B] The behavior that is described in this article occurs only if the effective password policy on the domain controllers has [B]Enforce Password History[/B] set to a value that specifies that two or more passwords will be remembered. The password policy should be set at the domain level. You can determine whether the policy has taken effect on the domain controllers by using the Secpol.msc snap-in.
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[RIGHT]البته میتواند هم از [B]Enforce Password History[/B] باشد
[LEFT][CODE]http://technet.microsoft.com/en-us/library/dd277399.aspx[/CODE]
[LIST][*] [B]Enforce Password History: Enforce password history[/B] sets how frequently old passwords can be reused. This policy can be used to discourage users from changing back and forth between a set of common passwords. Windows 2000 can store up to 24 passwords for each user in the password history. By default, Windows 2000 stores one password in the password history.
To disable this feature, set the size of the password history to zero. To enable this feature, set the size of the password history using the [B]passwords remembered[/B] field. Windows 2000 will then track old passwords using a password history that is unique for each user, and users will not be allowed to reuse any of the stored passwords.[*]
[IMG]http://technet.microsoft.com/en-us/library/Dd277399.w2kab011_big%28en-us,TechNet.10%29.gif[/IMG][*][*]
[B]Note:[/B] To discourage users from cheating [B]Enforce password history[/B], they should not be allowed to change passwords immediately. This will prevent users from changing their passwords several times to get back to their old passwords.[/LIST]
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عالی و مفید بود استاد عزیز
خوب حالا اگه بخوام اين مشكل رو توي كل دومين حل كنم توي پاليسي دومين بايد توي رجيستري اين تغيير رو توي تمام دومين اعمال كنم ولي موقعه اجازه ساختي key dword در رجيستري نمي شه اونو اضافه كرد
تكليف چي ميتونه باشه ؟؟؟؟؟؟؟؟؟؟؟؟؟؟؟؟/
[RIGHT]منظورتون چیه؟ من نفهمیدم ، شرمنده [/RIGHT]
جناب منصوری ظاهرا متوجه جواب شما نشدن
جناب منصوری ، وقتی شما در Domain Security Policy این تنظیم رو که جناب پاتریس فرمودن ، اعمال کنید در کل دامین اعمال میشه و دیگه نیازی به تنظیمات رجیستری و کی ورد وجود نداره
موفق باشید
سلام ببخشيد استاد مشعلي دير جواب دادم من شرمندم ببنيد من متوجه فرمايشات پاتريس جان شدم منتها اين تغييرات رو مگه نبايد توي پاليسي AD بدم تا به همه كلاينتها اعمال بشه خوب توي Ad يه قسمتي هست كه براي اديت كردن كل رجيستري ويندوز كه مي توان ان رو به همه كلاينتا اعمال كرد من اونجا مشكل دارم منظور شما از اعمال به Policy Domain دقيقا كجاي دومين هستش
باتشكر:p
