Firewalls Questions Medium
The purpose of an access control list (ACL) in a firewall is to determine and enforce the rules and permissions for network traffic. It acts as a filter that allows or denies specific types of traffic based on predefined criteria such as source IP address, destination IP address, port numbers, and protocols. By using ACLs, a firewall can effectively control the flow of network traffic, allowing only authorized connections and blocking unauthorized or potentially malicious traffic. ACLs help in securing the network by providing granular control over what traffic is allowed to pass through the firewall, thereby protecting the network from potential threats and unauthorized access.