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A LDAP simple bind action fails on a domain controller that is running Windows Server 2008 if the distinguished name of the user account exceeds 256 charactersArticle ID: 974522 - View products that this article applies to. On This PageSYMPTOMSConsider the following scenario:
For example, when you use the Ldp.exe utility to perform a simple bind action, you receive an error message that resembles the following: res = ldap_simple_bind_s(ld, 'CN=testuser,OU=L5- 12345678901234567890123456789012345678901234567890,OU=L4- 12345678901234567890123456789012345678901234567890,OU=L3- 12345678901234567890123456789012345678901234567890,OU=L2- 12345678901234567890123456789012345678901234567890,OU=L1- 12345678901234567890123456789012345678901234567890,OU=test,DC=testdomain,DC=com', <unavailable>); // v.3 Error <49>: ldap_simple_bind_s() failed: Invalid Credentials Server error: 80090308: LdapErr: DSID-0C0903AA, comment: AcceptSecurityContext error, data 57, v1771 Error 0x80090308 The token supplied to the function is invalid CAUSEThis problem occurs because the Windows authentication module incorrectly sets a maximum length limitation of 256 bytes for the distinguished name of the user account that is used in the simple bind action. RESOLUTIONHotfix informationA supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing the problem described in this article. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix. Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site: http://support.microsoft.com/contactus/?ws=support Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.
(http://support.microsoft.com/contactus/?ws=support)
Important Windows Vista and Windows Server 2008 hotfixes are included in the same packages. However, only one of these products may be listed on the “Hotfix Request” page. To request the hotfix package that applies to both Windows Vista and Windows Server 2008, just select the product that is listed on the page. PrerequisitesTo apply this hotfix, the computer must be running Windows Server 2008 Service Pack 2 (SP2) or Windows Server 2008. Additionally, the computer must have Active Directory Domain Services (AD DS) installed.Restart requirementYou do not have to restart the computer after you apply this hotfix.File informationThe English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.Windows Server 2008 file information note
For all supported x86-based versions of Windows Server 2008 SP2 and of Windows Server 2008Collapse this table
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For all supported x64-based versions of Windows Server 2008 SP2 and of Windows Server 2008Collapse this table
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WORKAROUNDTo work around this problem, use one of the following methods:
STATUSMicrosoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. MORE INFORMATIONFor more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base: 824684
(http://support.microsoft.com/kb/824684/
)
Description of the standard terminology that is used to describe Microsoft software updatesAdditional file information for Windows Server 2008 SP2 and for Windows Server 2008Additional files for all supported x86-based versions of Windows Server 2008 SP2 and of Windows Server 2008Collapse this table
Additional files for all supported x64-based versions of Windows Server 2008 SP2 and of Windows Server 2008Collapse this table
REFERENCESFor more information about the LDAP simple bind, visit the following Microsoft Web site: http://msdn.microsoft.com/en-us/library/aa366994(VS.85).aspx
(http://msdn.microsoft.com/en-us/library/aa366994(VS.85).aspx)
For more information about the maximum limits in the scalability of Active Directory, visit the following Microsoft Web site: http://technet.microsoft.com/en-us/library/cc756101(WS.10).aspx#BKMK_NameLimits
(http://technet.microsoft.com/en-us/library/cc756101(WS.10).aspx#BKMK_NameLimits)
PropertiesArticle ID: 974522 - Last Review: October 7, 2011 - Revision: 2.0 APPLIES TO
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