Introduction to Firewalls | The First Line of Network Defense

🔥 Introduction to Firewalls | The First Line of Network Defense

A firewall is one of the most fundamental security controls in any IT environment.

It determines what traffic is allowed, what is blocked, and how systems communicate securely across networks—forming the first barrier between trusted and untrusted networks.

This introduction helps you understand 👇

🔹 What a firewall is and why it matters

🔹 How traffic filtering actually works

🔹 Different types of firewalls used in modern networks

🔹 Basic firewall rules and policies

🔹 Where firewalls fit within cybersecurity and networking architectures

A strong firewall foundation is essential for anyone starting out in IT, Networking, or Cybersecurity—and it’s a must-know skill for SOC analysts and blue-team engineers.

👉 Comment “Firewall” and send a connection request to get access to the full guide and hands-on cybersecurity training.

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