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HeaderWaitTimeout Metabase Property

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Applies To: Windows Server 2003, Windows Server 2003 with SP1

The HeaderWaitTimeout property specifies the amount of time (in seconds) the server waits for all HTTP headers for the request (indicated by a double carriage return) to be received before disconnecting the client. The purpose of this property is to help prevent a common variant of the Denial of Service (DoS) attack that attempts to max out connection limits and keep those connections connected.

In IIS 6.0, use this property in conjunction with the ConnectionTimeout property, and for Web service nodes, use the MinFileBytesPerSec property instead of the ServerListenTimeout property.

Attribute Name Attribute Value

XML Data Type

DWORD

WMI Data Type

SINT32

ADSI Data Type

DWORD

ABO Data Type

DWORD

ABO Metabase Identifier

MD_HEADER_WAIT_TIMEOUT

Attributes

INHERIT

Default Value

0

MetaFlagsEx

CACHE_PROPERTY_MODIFIED

User Type

IIS_MD_UT_SERVER

ID

9204

Configurable Locations

You can configure this property at the following locations in the IIS metabase.

Metabase Path IIS Admin Object Type

/LM/W3SVC

IIsWebService

Code Example

For general code examples, see Code Examples to Configure Metabase Properties.