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How to Choose a Firewall

Three basic types of firewalls are available for you to choose from:
  • Software firewalls
  • Hardware routers
  • Wireless routers
To determine which type of firewall is best for you, answer these questions and record your answers:
  1. How many computers will use the firewall?
  2. What operating system do you use? (This might be a version of Microsoft Windows, Apple Macintosh, or Linux.)
That's it. You are now ready to think about what type of firewall you want to use. There are several options, each with its own pros and cons.

List of Different Firewalls:

Software firewalls

 Software firewalls are a good choice for single computers, and they work well with several operation systems. (Windows Vista and Windows XP both have a built-in firewall too.)

Pros Cons
Does not require additional hardware. Additional cost: Most software firewalls cost money.
Does not require additional computer wiring. Installation and configuration might be required to get started.
A good option for single computers. One copy is typically required for each computer.

Hardware routers

Hardware routers are a good choice for home networks that will connect to the Internet.
Pros Cons
Hardware routers usually have at least four network ports to connect multiple computers together. Require wiring, which can clutter your desktop area.
Provide firewall protection for multiple computers.  

Wireless routers

If you have or plan to use a wireless network, you need a wireless router.
Pros Cons
Wireless routers allow you to connect computers, portable computers, personal desk assistants, and printers without wiring. Wireless devices broadcast information using radio signals that can be intercepted by someone outside of your home (if they have the right equipment).
Wireless routers are excellent for connecting notebook computers to the Internet and networks. You might have to pay for extra equipment.
  Not all wireless routers come equipped with a built-in firewall, so you might have to purchase one separately.

Start using a firewall today

Connecting to the Internet can pose dangers to unwary computer users. Use a firewall to help reduce your risk.

Installing a firewall is just the first step toward safe surfing online. You can continue to improve your computer's security by keeping your software up to date, using antivirus software, and using antispyware software. You can find a list of different firewall with their test result Here.