TeraGo Networks Presents: Back to Basics – What is a Firewall?

Typically, a firewall is one of those items that you don’t necessarily think of until something goes wrong. It’s always there in background, protecting your computer from viruses and other outside threats. The term “firewall” is actually an general term used to describe a specialized defence system for a computer network.

The term actually originated in construction, where specialized fire-prevention systems involve fire-resistant walls being placed strategically in buildings or automobiles to slow the speed at which a fire spreads. When using the term firewall in reference to computers, it describes the hardware and software that slows down the invasion of a computer system by blocking viruses and hackers.


A computer firewall can take hundreds of different shapes, from specialized software programs, to specialized physical hardware devices, to a combination of both. At the end of the day, it’s priority is to block unauthorized or unwanted traffic from getting into your computer system. The firewall is located at a network gateway, which is the point of access.

So how does it work? Basically, your firewall will examine each network packet to determine whether or not to forward it on to its destination. Some other screening methods used by firewalls include screening requests to make sure they come from an acceptable or previously identified domain name and IP address. Other features can include logging and reporting, automatic alarms, and a graphical user interface for controlling the firewall.

For business, having a reliable firewall in place can dramatically reduce the threats that can result in costly data loss, breaches, and down time. Many companies also have customer information on file, so it’s imperative to have the proper security measures in place. Losing private customer information is inexcusable, and would likely result in a domino effect of lost customers. Once they learn their information isn’t being properly protected, it’s unlikely your company will retain their business.

To learn more about why your company needs a firewall, click here.

Blog Author: Vanessa Hartung


Why Your Company Needs a Firewall

The presence of a firewall, whether it’s hardware or software, provides a significant security boost for any computer user. This is especially true if you manage a business. Companies need to ensure that their systems are sufficiently protected in order to prevent the infiltration of viruses, bugs, or hacking. Firewalls are an indispensable security measure that dramatically reduces risks to your business network.

As the internet has grown and progressed over the years, websites have become more interactive and functional. Many company websites are used to collect customer information, collect online orders, complete transactions, host chat conversations, and much more. With so much information being stored electronically, it is critical for businesses to do everything in their power to protect it. Losing company or customer data can have a significant impact on a company, such as hindered productivity or a tarnished reputation. In some cases, it can even result in the closure of a business.

Additionally, if your company utilizes cloud computing for storing important information, it is important to minimize risk by employing a firewall. Although many cloud computing hosts offer higher levels of security, it is important for businesses to do what is in their power to minimize risk. Cloud computing is a great service for businesses because of its ease of use, but storing data electronically can pose a risk if it is not properly protected by users on both ends; the cloud host and a company using their services.

In some cases, hackers are infiltrating business networks in order to piggyback on their internet service. This can result in hefty overage fees, costing the company a considerable amount of money. Additionally, if a hacker is stealing a significant amount of bandwidth, employees may experience a slow internet connection. Again, this can impact productivity, which then results in a loss of revenue.

A firewall can keep track of suspicious logins, filter our SPAM emails, and block suspicious applications. It can also monitor network activity and create a log, which can assist in identifying where and when a breach may have occurred. This feature can help your company contain and fix the problem faster, instead of trying to solve the issue after the damage has already taken place.

Many hardware and software companies are now providing firewalls that are specifically designed for businesses. As more businesses and customers continue to migrate online, there is an increased necessity for reliable security measures. If the proper defenses are not put in place, a business may be at risk of losing everything.

To learn more about obtaining a secure connection, click here.

Blog Posted by Vanessa Hartung

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