Firewall
It is a program or device that protects the computer from risks while it is connected to the Internet. The firewall examines all information and data received from the Internet, or from any other network, and then allows it to pass and enter the computer, if it is It is compatible with the firewall settings, or it excludes and expels malware, such as viruses and spyware, or if it is not compatible with the firewall settings. The firewall is a dividing line between the computer and the Internet. After this proposition, we can liken the firewall to checkpoints or border posts in modern countries, which examine all those entering the country.
Other names for firewall
The firewall is called by another name, which is (firewall). This last name is more famous and used than the first name. Calling this wall a firewall is a name translated from the English name (Firewall). The reason for calling the firewall that runs on the computer a firewall is the similarity. Between the principle of its work and the working principle of the insulating firewall that is installed in buildings, which works to prevent the spread of fire from one room to another, or from one building to another.
The importance of firewall
The firewall is considered one of the most important steps that must be taken in order to protect the computer from intrusion by hackers and malicious programs. It is known that the Internet is unsafe and full of security risks, so the user of this network must be careful about the safety of his device while connected to the Internet.
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All users of the famous operating system (Windows) can activate the firewall on this system. Microsoft added the firewall to the Windows XP operating system, and in the versions that followed Windows There was no firewall in it. The firewall on Windows is usually activated automatically, and if it is not, the user can do it easily by going to the Control Panel, entering (Windows Firewall) and activating it.
The user can install an external firewall program on his computer, so that his computer has two firewalls, but it is not recommended to install an external firewall, if the firewall on Windows works perfectly; Because this may cause many problems in the device. The user can benefit from the firewall included in antivirus programs, which are usually paid programs.
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