🔥 Types of Firewalls 🔥

1️⃣ Stateless Firewall (Packet-Filtering Firewall)

• How it works: Checks each data packet individually without remembering past traffic.
• Think of it like: A security guard who checks each visitor’s ID without remembering who came earlier.
• Pros: Fast and simple.
• Cons: Less secure because it can’t detect complex attacks.

2️⃣ Stateful Firewall

• How it works: Tracks the state of active connections and remembers past traffic.
• Think of it like: A security guard who keeps a guest list and remembers who’s already inside.
• Pros: More secure because it understands the flow of data.
• Cons: Slower than stateless firewalls due to extra tracking.

3️⃣ Next-Generation Firewall (NGFW)

• How it works: Combines traditional firewall features with advanced security like deep packet inspection, intrusion detection, and application control.
• Think of it like: A smart security system with facial recognition, ID checks, and real-time threat alerts.
• Pros: High-level security against modern threats.
• Cons: More complex and expensive.

Summary:

Next-Gen = Advanced Protection for Modern Threats

Stateless = Simple & Fast

Stateful = Smart & Secure