I wish I had this script a few years ago when I was working with a school system building their web servers and doing networking. From inside we could not access hardly any outside ports because of a very strong firewall. They blocked virtually everything but port 80 and then filtered that (because of student access).
Getting any other work done while I was there was like pulling teeth. Almost all the proxy sites I knew of were blocked and I had to setup my own script on one of my domains to cloak myself. It was quite a pain just to be able to get into WHM.
I'll definitely bookmark this - no telling when I might need it again.
BTW MangoWebs - is your domain expired? It seems to redirect to a domain registrar???