What is a firewall?

Any computer needs to protect its system,because any person needs to protect their personal data. Let's talk about how you can implement computer protection at the browser level. So:

What is a firewall?

Speech in our article will go, namely about technologies,which can protect our computer from viruses, by filtering information coming from the network. We will talk about the Firewall (in the common people "firewall").

Firewall is defined as a set of hardware orsoftware, which monitors and filters the network packets passing through it, in accordance with certain specified rules. In Russian, a Firewall is a filter or a sieve that skips the necessary information and blocks the one that could pose a threat to the computer. The user has the ability to configure the firewall in the manner that is necessary for optimal operation of the computer system. It should be noted that firеwall should not be confused with the anti-virus program, since the firewall does not perform the destruction of viruses, it just does not miss them.

The main function of the firewall is the protection of thewhich flows information from unauthorized access. That's what a firewall is. If you want to protect your data from scammers, then you just need to have a firewall on your computer.

If you are thinking about the full protection of yourdata, then you need to install an antivirus program and a firewall. As noted by experienced users, many anti-virus programs simply do not see dangerous applications that make their way to the computer system. In order to block the access of such programs to your system, you need to install a Firewall, which simply blocks the path to the program that does not meet the requirements. The firewall can be represented as a wall in which the door is installed. There is a guard in the door, which passes and releases only strictly defined people, who meet all the requirements of the pass. This is how the Firewall works. Firewall allows you to include in your list of programs that are allowed to receive and send network packets from the network and to the network. You can manually add a list of programs you trust.

That's what a firewall is in a nutshell ... In fact, it's hard to imagine safe work in a virtual web without the use of a firewall. As we have already noted, the computer needs full protection from scammers and hackers. We live in a world that is difficult to call safe. When it comes to being safe on the Internet, we begin to seriously doubt whether our computer is ready to attack virus programs. It often happens that the vast majority of computers suffer from the effects of viruses. It affects not only ordinary home computers, but also servers of various large companies and organizations.