If you have been using Internet on a regular basis or working in a large
company and surf the Internet while you are at work, you must have
surely come across the term firewall. You might have also heard of
people saying “firewalls protect their computer from web attacks and
hackers” or “a certain website has been blocked by firewall in their
work place”. If you have ever wondered to know what exactly is this
firewall and how it works, here we go. In this post I will try to
explain “How firewalls work” in a layman’s terms.
Have you ever wondered how to test your Antivirus software to ensure
it’s proper working? Well here is a quick and easy way to test your
antivirus. The process is called EICAR test which will work on any
antivirus and was developed by European Institute of Computer Antivirus Research.
This process can be used by people, companies and antivirus programmers
to test the proper functioning of the antivirus/antimalware software
without having to deal with the real computer virus which can cause
damage to the computer. Here is a step-by-step procedure to test your
antivirus. 
