👉🔥👨‍💻A firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules. It acts as a barrier between a trusted internal network and untrusted external networks, such as the internet, to prevent unauthorized access and protect against cyber threats.
👉Here are some types of firewalls with corresponding emojis:
1. Packet Filtering Firewall 📦🔒- Examines packets of data and filters them based on predefined rules.
2. Stateful