Microsoft has made available for download the second Beta development milestone of an anti-DoS extension for version 7.0 of Internet Information Services [IIS]. The Microsoft Dynamic IP Restrictions for IIS 7.0 has reached Beta2 and is up for grabs via the Microsoft Download Center in two flavors, 32-bit (x86) and 64-bit (x64).
The Dynamic IP Restrictions Extension for IIS provides IT Professionals and Hosters a configurable module that helps mitigate or block Denial of Service Attacks or cracking of passwords through brute-force by temporarily blocking Internet Protocol (IP) addresses of HTTP clients who follow a pattern that could be conducive to one of such attacks. This module can be configured such that the analysis and blocking could be done at the Web Server or the Web Site level. The module includes the following features:
Need to be able to select the type of hack attempt ie. login failed attempts.
This will counts all requests which makes this useless in practice.