(ISAServer2006 is the most used ISA version in the enterprise now. This version enhances the support for OWA publishing and multiple Web site publishing, and adds support for SharePoint Portal Server publishing; Single sign-on for all web services published by the web listener; new server farm function, support for server clustering through multiple web servers to achieve load balancing, and this feature does not require Windows NLB or clustering support; enhanced ddos The protection function greatly enhances the defense ability of ddos ??attacks. Let's take a look at how to build an experimental environment for ISAServer2006.)