What is a firewall? what is it for? (firewall)

Surely you have always heard of firewalls. If you have a modern system, rest assured that you will have one integrated via software. But what is a firewall really and what does it work for?

What is a firewall and what is it for?

A firewall is a kind of shield or barrier that works to protect your PC, phone or tablet from the risks of malware based on data or figures that exist on the Internet. This can be via software (usually paid) or physical (quite expensive) that are intended for large companies and are placed when the information arrives from the WAN to the LAN or in front of the server or network that you want to protect.

These security firewall applications have a set of automated tools that use so-called white lists to check which applications should be rejected or accepted. However, firewalls cannot effectively deal with such evils as viruses, keyloggers, worms, and some other dangerous programs.

We also recommend free public DNS servers.

Advantages of a firewall

But a firewall can offer you many advantages, here are the main ones:

Unaccredited access will protect your computer: yes, since with a suitable and correctly configured firewall, in addition to a modern operating system, it should have access to your desktop when it is deactivated, in this way it will prevent hackers from intruding on your computer.

Firewalls are capable of blocking messages when they contain unwanted content: if you have Windows XP or higher, as of March of this year the firewall is already available to activate and also to install it. And since old systems are easy targets, you should update your Windows as well.

Having firewalls makes your online gaming experience more secure: a firewal will protect you from any hacker attempts, and it will be automatically blocked.

Block immoral or inappropriate content with firewalls - These locks are usually in parental control apps, these will come with national security suites.

Firewalls, hardware or software: Access to these firewalls is given by activating the credentials of the router, and you will need to adjust it from time to time for online games but with a game console.

As always we recommend reading our tutorials and if you have any questions, you can contact us.