What is Firewall and its types -Hardware firewall, Software Firewall

What is Firewall?

A firewall is a network security system that monitors and controls incoming and outgoing network traffic on the basis of predefined security rules in the firewall. A firewall typically establishes a barrier between trusted internal network users and the untrusted external network such as the internet. To know more about the "What is a Firewall and its types" keep reading this article till the end.
It ignores data that comes from a suspicious location or an unsecured location. A firewall plays a very important role in any network because it provides a protecting barrier against many types of attacks coming back from the outside world.
Mainly the Firewall is categorized into two types:

• Hardware Firewall
• Software Firewall

Hardware Firewall

A Hardware firewall placed between the local network of your computers and the internet. The hardware firewall inspects all the data or the information that comes from the internet passing through the firewall, It blocks the unwanted or harmful data that passes through the firewall and only allows the trusted and useful data to the internal network.

In order to protect the network properly without compromising with performance, hardware requires expert setup, and so may not be a realistic solution for the companies without a dedicated IT department. Read more