What Is the Firewall?

What is Firewalls?

A firewall is a system that provides network security by filtering incoming and outgoing network traffic  For example, you often hear people in companies say things like, "I can't use that site because the firewall blocks it".

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How Firewalls Work?

firewall block all virus websites. it's means firewall is a some kind filter machine because The firewall monitors all this information traffic to allow ‘good data’ in, but block ‘bad data’ from entering your computer.

Types of firewalls

            There are two types of firewalls.

                                          1) Software firewall

     

                                          2) Hardware firewall

Software firewall

        Software firewall are the most popular network protection method for home users. They usually come as stand-alone applications or as part of a complete virus guard software . a software firewall can also protect against Trojan or Worm applications  The firewall software must be regularly updated to keep up with the latest technological improvements and provide effective protection against the latest network attacks

Hardware firewall

            it's a some kind of network devices such as routers and can protect every single machine on a network and require little configuration to work effectively. Hardware firewall use for server computers mainly Hardware firewalls sit directly behind your router.Another benefit of hardware firewalls is that they’re always on.There’s no need to worry about protection !! these devices are built for 24 protection

 
  

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