Linux Firewall and its Types

Linux Firewall and its types

Linux firewall protects our computer from attackers or crackers in the network based on preset security rules and firewall exist between computer and Network so we can say that a firewall establishes a barrier between the computer and internal network (a group of system/s) or the external network (Internet).

There are three levels of firewall security

Highly secure firewall
Medium secure firewall
Low secure firewall

Firewall types- Firewall types can be divided into several different categories based on their general structure and method of operation. Here are eight types of firewalls: