Article ID: 296458
Article Last Modified on 11/21/2006
APPLIES TO
- Microsoft Internet Information Services 5.0
- Microsoft Internet Information Server 4.0
This article was previously published under Q296458
SYMPTOMS
When you use Host Headers to configure IIS to host multiple sites using the same IP address, if the client is using HTTP/1.1 Keep-Alives and issues a request to Host Site A on the IIS server, and then issues a request over the same HTTP keep-alive connection to Host Site B by changing the Host Header, IIS disregards this Host Header and attempts to fulfill the request on the original host site.
RESOLUTION
IIS 5.0
To resolve this problem, obtain the latest service pack for Windows 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
260910 How to Obtain the Latest Windows 2000 Service Pack
The English version of this fix should have the following file attributes or later:
Date Time Version Size File name
-------------------------------------------------------------
5/8/2001 07:00p 5.0.2195.3589 357,648 W3svc.dll
IIS 4.0
A supported fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Apply it only to computers that are experiencing this specific problem. This fix may receive additional testing. Therefore, if you are not severely affected by this problem, Microsoft recommends that you wait for the next service pack that contains this hotfix.
To resolve this problem immediately, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:
NOTE: In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The typical support costs will apply to additional support questions and issues that do not qualify for the specific update in question.
The English version of this fix should have the following file attributes or later:
Date Time Version Size File name Platform
---------------------------------------------------------------
06/07/2001 20:09 4.2.766.1 214,544 Adsiis.dll x86
06/07/2001 20:09 4.2.766.1 330,672 Asp.dll x86
06/07/2001 20:08 4.2.766.1 55,392 Httpodbc.dll x86
06/07/2001 20:09 4.2.766.1 98,912 Iischema.dll x86
06/07/2001 20:07 4.2.766.1 63,472 Iislog.dll x86
06/07/2001 20:07 4.2.766.1 185,792 Infocomm.dll x86
06/07/2001 20:07 4.2.766.1 29,520 Iscomlog.dll x86
06/07/2001 20:08 4.2.766.1 38,256 Ssinc.dll x86
06/07/2001 20:08 4.2.766.1 25,360 Sspifilt.dll x86
06/07/2001 20:08 4.2.766.1 229,536 W3svc.dll x86
06/07/2001 20:08 4.2.766.1 88,032 Wam.dll x86
STATUS
Microsoft has confirmed that this is a problem in Internet Information Server 4.0 and Internet Information Services 5.0. This problem was first corrected in Windows 2000 Service Pack 3.
Additional query words: kbIISCom
Keywords: kbbug kbfix kbqfe kbwin2000sp3fix kbhotfixserver KB296458
