To enhance network security, organizations often implement firewalls. Firewalls serve as a barrier between an internal network and external threats, filtering incoming and outgoing traffic based on predetermined security rules. They can be either hardware- or software-based and play a crucial role in preventing unauthorized access and cyberattacks. In addition to traditional firewalls, technologies like intrusion detection systems and antivirus software can be implemented to bolster security further. Proper firewall configuration is essential for maintaining secure network environments and safeguarding sensitive data from breaches.