Article ID: 216906
Article Last Modified on 11/21/2006
APPLIES TO
- Microsoft Internet Information Services 5.0
This article was previously published under Q216906
SUMMARY
Internet Information Services (IIS) version 5.0 allows administrators to "map" a client authentication certificate to a Windows 2000 user account. There are two possible ways to do this:
- IIS Certificate Mapping
- Native Windows 2000 Active Directory Mapping
IIS Certificate Mapping
IIS Certificate Mapping is the same mapping that is found in IIS 4.0 and is available for backward compatibility only. It has the following attributes:
- You can set new rules on each virtual server.
- It handles one-to-one mapping (a certificate blob equals one user account).
- It handles many-to-one mapping (a wildcard rule maps to a user account).
- It does not scale as well as Active Directory mapping.
- The administrator must enter the username and password of the account logging on.
- By default, the account used must have the log on locally privilege.
- The request may be delegated to another computer if the account is configured for delegation.
Native Windows 2000 Active Directory Mapping
Active Directory Mapping is a new kind of client certificate mapping available only in Windows 2000. It has the following attributes:
- It scales very well.
- The administrator does not need to know the username or password.
- The user account may not be delegated to another computer even if the account is configured for delegation.
Note: The IIS certificate mapping that is included in IIS 5.0 is for backward compatibility only. This feature may be removed in favor of the Active Directory mapping in a future release of the Web services.
MORE INFORMATION
For additional information, click the article numbers below to view the articles in the Microsoft Knowledge Base:
272175 HOW TO: Configure Active Directory Certificate Mapping
313070 HOW TO: Configure Client Certificate Mappings in Internet Information Services (IIS) 5.0
Keywords: kbinfo KB216906
