Protect Your Whs Web Site From Ip Scanners Whs 2011

http://forum.wegotserved.com/index.php/tutorials/article/43-protect-your-whs-web-site-from-ip-scanners/

I used this on my WHS v1 box and would love to do the same on WHS 2011 box. Can anyone please provide instructions on how do this setup on WHS 2011?