With the onslaught of computer hackers, scammers, and viruses that are prevalent around the Internet, it is important to know how and why you should install a firewall. This is your first line of defense between your computer and data that is entering it. It stops your computer being prone to dangerous attacks that can negatively impact upon you.
Since there are a wide variety of firewalls available, including those from major corporations such as Microsoft, you first need to determine what kind of firewall your PC requires.
It is likely that your firewall will already be set up and ready to use if your computer came with the Microsoft XP or Vista operating system installed. However, it may not be turned on or working properly – this is especially true if you are using software from various Voip companies such as broadband telephony. If you do not have one of these later operating systems, then you need to purchase your own software. Since the XP version doesn’t get great reviews, you may still want to purchase separate firewall software if you have Microsoft XP.
The many products available, include Norton, AVG, and McAfee and can be purchased in store or downloaded from the internet. Depending on the sophistication of the software, prices will vary but there are also plenty of low cost versions available, even from the big name companies.
You need to take a few things into consideration prior to installing your firewall. The program must not stop you using the functions that you need, such as file and printing sharing. Settings can be configured during installation or at a later date using the documentation provided.
Parts of the Internet may be restricted by a firewall. Awareness of how you connect is important as if you use a local area network or a router, this could happen. It is difficult to access secured networks when you have installed a firewall. If you work from home or connect to a company computer, you need to coordinate with the IT department in your company before installing a firewall since they may have specific instructions concerning how to configure its settings so you are still able to connect to them.
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