Network Security Controls

Network security controls are critical measures implemented to safeguard a computer network infrastructure from unauthorized access, cyber threats, and data breaches.

Firewalls

Firewalls are fundamental network security devices designed to monitor, filter, and control incoming and outgoing network traffic based on predetermined security rules. They act as a barrier between a trusted internal network and untrusted external networks, establishing a secure perimeter.You must know the different types of firewalls as listed below:

• Hardware firewalls: These are physical devices positioned at the network perimeter to filter traffic between the internal network and the internet.
• Software (host-based) firewalls: These are software applications or programs installed on individual devices to monitor and control network traffic at the device level.
• Stateless firewalls: These network traffic filters operate based solely on predefined rules and criteria...