Firewall configuration refers to the process of setting up a firewall to control incoming and outgoing network traffic. This involves defining rules that specify which data packets are allowed or blocked based on various criteria, such as IP addresses, protocols, and port numbers. Proper configuration helps protect a network from unauthorized access and potential threats. To configure a firewall, administrators typically use a management interface to create and modify rules. These rules can be tailored to meet the specific security needs of an organization, ensuring that only legitimate traffic is permitted while harmful data is kept out. Regular updates and monitoring are essential for maintaining effective firewall protection.