Brief Firewall Overview

Firewalls are a security measure computers can employ to protect themselves from Internet attacks. Firewalls can be hardware or software-based. They can be utilized in a variety of ways and configured to defend against specific or broad attacks. While firewalls are often managed by advanced network administrators, even the most novice of computer users can take advantage of the protection firewalls offer to keep themselves safe from harm.

On a basic level, the firewall serves as a way to filter traffic from the Internet to the computer. When a firewall is not present, any sort of transmission can be received by the computer. This means any threats or harmful transmissions will be let through without a second harm and can potentially ruin your computer. Every web site on the Internet has a level of threat, a computer can see these threats and a firewall essentially filters out the levels of threats. It lets through the threats that are deemed low, medium or high, in basic terms.

Most computers, especially those equipped with either Windows or some form of anti-virus protection, come with a standard firewall. The firewall can be tweaked and set-up to filter through different threat levels. Depending on the types of web sites you visit, you may need to adjust or customize the threat levels so the firewall lets you visit said sites. Otherwise, you will not be able to receive any data from those sites.

Of course, when a web site is deemed a threat, even if you visit it every day, you might want to investigate further to see if it is worth visiting. If not, utilizing a firewall may be useless on many levels. If you ignore threats, you put your computer at risk to be infected by viruses, malware and other malicious scripts. This can shut down your computer, and in many cases, but your information and data at risk. Taking the time to utilize your firewall, and taking threats seriously, are the basic premise of using a firewall in the first place. Learn how to use it, browse with caution, and you will see the benefits of using a firewall.