Shields Up : Security System Test

https://www.grc.com/x/ne.dll?bh0bkyd2

Shields Up is an online port scanning service created by Steve Gibson of Gibson Research Corporation and hosted at grc.com. The purpose of this utility is to alert the users of any ports that have been opened through their firewalls or through their NAT routers. The utility can scan the most common file sharing ports, as well as all service ports (1-1056), and user defined ports, in sets of 64. The scanning servers have the static IP addresses of 4.79.142.192 to 4.79.142.207.

A few links with info about this service :
http://gadgetwise.blogs.nytimes.com/2010/04/06/qatorching-your-firewall-on-purpose/

http://lifehacker.com/5511734/shieldsup-tests-your-firewall-for-vulnerabilities

The Ultimate Tool for Security Testing (for Pros)

Back Track
http://www.backtrack-linux.org/
This tool is not really for IT-rookies.

Wikipedia - BackTrack is a distribution based on the Debian GNU/Linux distribution aimed at digital forensics and penetration testing use.^[4] It is named after backtracking, a search algorithm. The current version is BackTrack 5 R3.,^[5] now based on Ubuntu 10.04 (Lucid) LTS, which is itself based on Debian.

Can't get rid of the Babylon Search toolbar? Try Adwcleaner by Xplode.

AdwCleaner by Xplode is a program that searches for and deletes Adware, Toolbars, Potentially Unwanted Programs (PUP), and browser Hijackers from your computer. 

Recently I was trying to remove a toolbar called Babylon Search from a friend's computer. I used several known programs, but to no avail. Adwcleaner was impressively efficient and I liked the little bug. I recommend it.

Bleepingcomputer.com in a review about this program says : The types of programs that AdwCleaner targets are typically bundled with free programs that you download from the web.  In many cases when you download and install a program, the install will state that these programs will be installed along with the program you downloaded.  Unless you perform a Custom install, these unwanted programs will automatically be installed on your computer leaving you with extra browser toolbars, adware, and other unwanted programs.  AdwCleaner is designed to search for and remove these types of programs.