Firewalls or firewalls are a tool created when the rise of the Internet began worldwide, around the 80’s. Generally when hackers noticed that through these networks they could access the personal information of other users.
It is considered one of the first security measures that existed for computers, which can be installed through hardware or software .
To avoid violations of user privacy, different developers were in charge of forming this barrier that filters the digital content that is transmitted through the computer network .
If you want to know in depth how this tool works and is configured, keep reading this article to achieve it.
Firewall or firewall, the first security barrier of a computer
Firewalls are devices that are responsible for managing and filtering application traffic that enters and leaves the network that connects two or more computers.
Its principle consists of a series of rules or criteria that determine whether access can be sent or received, at the same time that other authorized accesses are executed within the computer. These rules can be considered as those established by default by the software or hardware, or be configured to the use and convenience of your equipment.
Likewise, they can vary and be updated over time, in order to keep up to date and protect themselves from the new types of attacks that are transmitted over the Internet .
As far as protection is concerned, this tool is not capable of eliminating any malware that tries to enter the computer. But it will only look for a way to block your entry. Because of this, it is recommended that equipment safety is not limited solely to this barrier. Rather, it is combined with other types of software designed for OS .
How do firewalls or firewalls work?
It is generally located at the junction between two networks or computers, and is responsible for protecting the information that is transmitted through the router. Either by authorizing or blocking traffic. Automatically configure a filter that is intended to identify different types of long-term data .
As mentioned at the beginning, this protection barrier can be classified as hardware or software. Depending on the type of application that is placed on the computer.
A physical firewall is the one that comes in products, or in the router that is responsible for generating the connection network of your computer. These types are recommended for corporate networks , since the firewall is between the Internet access and the connection switch. In this way, every computer that is connected to this network will be protected.
On the other hand, the firewall as a program is recommended for home networks , protecting only the equipment that has it installed. Currently there are different types of online servers such as iWeb. Which are responsible for serving as a firewall or firewall directly within the browser.
An example of this is WatchGuard. A company that offers these types of services by creating and distributing a hardware-type firewall available for home and business networks.
Would you like to configure your firewall? It is very simple!
In the same way as it was described in the previous point. The configurations of a firewall or firewall will be updated as new types of malicious data are generated. However, these defense parameters can be managed manually through the operating system settings .
Among the modifications that can be made is the ability to limit access to different servers on a network. In case they are considered suspicious. In the same way, you can change the digital packet filter, determine the number of connections that are made through a network, among others.
In short, the defense of the information traffic transmitted by your equipment is ensured by this simple (but wonderful) accessory that is here to stay.
