Firewall Installation and Configurationh1>

With modern always on connections like DSL, Cable Internet, and FIOS FTTH and FTTP, all computers should utilize a firewall. Windows has built into it a basic firewall that will allow only allow programs that are windows components, or programs authorized by you.

A firewall helps protect against malicious activities of viruses, and blocks access to hijackers and hackers from your computer. Since modern connections are always on and have bandwidth available that a hacker would love to utilize. By limiting which ports are open on your computer, and which programs are permitted to use the internet, you help protect your computer by making somewhat invisible on the internet. You can think of ports as doors to your computer. By closing the doors, a hacker does not have the ability to step inside and see if they can do anything.

By limiting specific access to programs, a malicious program or a virus cannot access the internet and send private and personal data without your permission to do so. When a windows firewall alert pops up, carefully examine what you did to initiate the connection, and carefully consider if you instigated the connection, or if the program may be malicious. When in doubt, deny a program access. If it creates a problem that you did not intend to do, you can always reverse that decision later.

There are other free firewalls out there, and there are a few I recommend specifically against because they try to scare you to buy their full version.

For most users, windows firewall should be fine. Some ISP's that offer always on connection offer a free virus scanner and firewall that would normally require a costly subscription. If your ISP is one that offers something like Mcafee, utilize this resource. Its firewall is much more advanced and configurable.


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