What is a Firewall, What Does It Do?

What is a Firewall, What Does It Do?

A firewall is hardware that protects the computer from these threats. A firewall builds a wall against malware and prevents them from infiltrating the computer via the network. In short, a Firewall is one of the ways to stay safe on the internet. Hardware-based or software-based Firewall types have certain rules in themselves.

A hardware-based Firewall is designed for network systems that need stronger protection. A software-based Firewall can be used for single networks and home computers. In order for the firewall to continue to protect your computer, it must be constantly on and updated when necessary. Transits of certain data from the Internet are also known as packet input and output.

The firewall constantly checks these packet inputs and outputs. The firewall's allowing the entry of some packets while not allowing others is called packet filtering. Another form of Firewall data control is Proxy Service.

In Proxy Service, Firewall records the incoming data, makes a detailed analysis, and compares it with other data. If there is a software code marked as malicious in the analyzed data, the package is marked as malicious and the Firewall does not allow this package to enter the system.

Windows Firewall is one of the most used firewall types worldwide. New versions of Windows Firewall, which can be used free of charge with computers with Windows software, are also quite advanced compared to the past.

However, when using the Windows Firewall for completely safe internet use, it is useful to support the firewall with an antivirus program.

Various firewall hardware, including Windows Firewall, can detect the pages you want to open, the sites you want to download, or various downloads as malicious software for different reasons.

A firewall does not allow the operation you want to do in this case. For this reason, internet users may have to turn off the Firewall or change its settings. If you encounter such a situation, you can change your Firewall settings or turn off your firewall for a limited time.

If you are using Windows Firewall hardware, search the start menu to find your application and enter the Windows and Firewall file for firewall shutdown.

In this section, you can turn on your firewall by clicking on the "Enable Windows Firewall" or turn off your firewall as soon as you want by checking the "disable" option.

In addition, there are many options in Firewall software that can adapt to users' habits and needs.

By selecting and saving the features you want in the Firewall application, you can also ensure that your firewall acts according to your needs during internet use. A firewall shutdown should be the last choice to be used in situations where the choice options do not meet your needs.

As long as the firewall is open, it protects your computer and blocks malware or viruses. When you scan your firewall at regular intervals, you can see that the Firewall prevents many attacks even within a day.

Not only viruses and malware but also security risks are among the problems eliminated by the firewall. Therefore, it is vital that all computers connected to a network must have a firewall.

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