In setting up protection on my computer, I have been advised to get a firewall or 2 - when I already have an anti-virus, and two anti-spywares. 1) What is a firewall? 2) What does a firewall do that the others do not do? 3)What is the best commercial (pay) firewall; and what is the best free firewall?
How important is a firewall?stinger
A firewall is very important---if you have Internet Access. Its like a big brick wall with some bricks removed. The allowed programs go through the holes while the viruses and harmful programs bounce of the wall. Anti-Virus and Anti-Spyware find programs already in your computer and destroy them, while the firewall keeps them out in the first place. The best firewall is the one that comes with Windows XP. Click on Start, Control Panel, Security Center, Windows Firewall, and On. You should not pay for a firewall because they are not worth it, just use the free one that comes with XP!
How important is a firewall?virus scanner
There are two types of firewalls, hardware and software and nominally you should have both, hardware at home, software for when you are not at home (on a laptop). If you want to buy a router, any of them come with a hardware firewall which is the best solution for a laptop or desktop, whether they are on a wired or wireless connection.
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