Extending ISA Server with XML Web Filters
|Archived content. No warranty is made as to technical accuracy. Content may contain URLs that were valid when originally published, but now link to sites or pages that no longer exist.|
In a business-to-business environment, application-level filtering is crucial to protect the private processes of your servers. Microsoft Internet Security and Acceleration Server 2000 enables developers to design custom filters to satisfy specific security needs. Using the ISA Server Software Development Kit (SDK), developers can build custom extensions in C++ to filter the traffic that passes through the system. This document describes a custom Extensible Markup Language (XML) Web filter built for ISA Server. The filter examines XML documents and verifies the XML before routing the documents to the backend systems, providing an additional layer of protection for your computers running Microsoft BizTalk Server.
Included in this document:
Meeting the Security Needs of a Business-to-Business Environment
The XML Filter Sample Code
Internet Information Services (IIS) File Drop Version
Performance Impact of the IIS Web Filter
Extending the XML Filter to Other Purposes
BizTalk Server and ISA Server
Note: The sample code contained within this paper is intended as a proof of concept of XML filtering and it is not supported by Microsoft.
Microsoft Word file