Do Firewalls Actually Protect Your Device? Firewalls And Their Functions Explained!

     When you hear Firewall, You think of a fire Marshal just blasting waves of water at a massive fire. You are right when you are in the realm of the real word but in the case of your device it is relatively closer, But not the same. The function of a firewall in the real world and in your device is to keep away the fire. In terms of your device though the fire is malicious software and other crappy things that harm your device. Fun fact, The term "firewall" originally referred to a wall intended to confine a fire within a building. Read the article till the end to know what Firewall actually is and what it does!

     In the territory of Technology, Specifically your device Firewall acts as a protective layer, Which protects your device from Malware and Ads on desktop. According to its definition, Firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules. Firewall is used as a protective layer between you and the filthy internet. Your firewall actually determines whether if you asked for a certain webpage on the browser or a request to download a certain type of software. Firewall analyses each and every incoming or outgoing request or response and acts against malware and crapware.

     Firewall also kicks in, When you are downloading or installing a program on your device and confirms that you wish to install the programs and it is safe. The new way developers are using to come around Firewall to install malware on your device is by hiding the request to install some of the sponsored programs among many other important ones like in the image below. So the next time you just click on “Next” just make sure that you are only installing required programs and not anything else. Firewall functions with the help of both Hardware and Software. Hardware sitting on top of your router and Software prompting you every time you install a new program.

     Firewalls are often categorized as either network firewalls or host-based firewalls. Network firewalls filter traffic between two or more networks and run on network hardware. Host-based firewalls run on host computers and control network traffic in and out of those machines. In it’s initial stage it was only used for surveillance of network transfer and was called packet filter. Firewalls are generally categorized as network-based or host-based. Network-based firewalls are positioned on the gateway computers of LANs, WANs and intranets. Host-based firewalls are positioned on the network node itself and control network traffic in and out of those machines. Firewalls also vary in type depending on where communication originates, where it is intercepted, and the state of communication being traced. Speaking of tracking, We recently also posted an article on our blog regarding how sites track you using cookies, Don’t miss out on this article to know about the state of your privacy. ( **Spoiler Alert**: It’s Dead.)

     That was our take on how Firewall saves you from malware and crapware and how to overcome it by checking what you are installing in the installer Wizard. We hope next time you install a program you check all the boxes and don’t install crapware. To be safe and read more of such informative articles and Tech news, Subscribe to Rohan Wayangankar’s Blog.

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