How to choose a firewall?

To determine what type of firewall is best for you, answer these questions and record the answers:

1. How many computers will use the firewall?
2. What operating system do you use? (It can be a version of Microsoft Windows, Apple Macintosh or Linux.)

With this information you can start thinking about the type of firewall you want to use. Next, let's analyze the options that exist:

Firewalls by Software Software firewalls are a good option when only one computer is used. They are a program that is installed on your computer. They work with Windows 98, Windows Me and Windows 2000 (Windows 7, Windows Vista and Windows XP already include a software firewall, so you do not need to acquire an additional one). It is also possible to obtain software firewalls from many manufacturers. On the Internet there are sites dedicated to evaluate the existing options and consolidate the offers that may interest you in case you want to acquire a firewall software. An example is the CNET portal for firewalls that serve over Windows  (requires Internet connection and the content is in English). Let's see the advantages and disadvantages of using a software firewall: Advantage Disadvantages It does not need additional hardware. Additional cost: most software firewalls cost money. You do not need additional cables in the equipment. It may be necessary to perform installation and configuration tasks to get started. A good option for individual teams. Normally one copy is needed for each equipment.These copies must be specific to the operating system of each team (for example, a software firewall for Windows will not work on Mac and vice versa).

Routers The  routers are physical devices whose purpose is to "route" or direct information between two or more networks. It is the type of devices that a company has to connect its internal network to other networks, for example to the Internet. Additionally, a router usually has firewall functionality, which also makes it a good option for home networks connected to the Internet.Enterprise routers are basic product for any business/enterprise. Let's see the advantages and disadvantages of using a router as a firewall: Advantage Disadvantages Normally hardware routers have at least four network ports to connect several computers together. It needs wiring, which can cause an accumulation in the work area. Provides firewall protection for several computers at once. It may require some technical knowledge to configure it properly. All the protected equipment can have different Operating Systems (Windows, Linux, Mac, etc., for the router this information is indifferent). The cost is sometimes much higher than the cost of a software firewall.

Wireless routers The  wireless routers are needed to create a wireless network, making it possible to get rid of all the cables from each computer on the network (having wireless access) to the same router. Like traditional routers, wireless can work like firewalls. Let's see the advantages and disadvantages of using a wireless router as a firewall: Advantage Disadvantages Wireless routers allow you to connect computers, laptops, PDAs and printers without the need for cables. Wireless devices transmit information via radio signals that anyone with the right equipment could intercept from outside their home. Wireless routers are great for connecting laptops to the Internet and networks. You may have to pay to obtain additional equipment.   Not all routers come equipped with an integrated firewall, so you may have to buy it independently.