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Network Security Tutorial

Last updated : July 23, 2024

What is Network Security?

Network security is all about protecting the sensitive information that travels through a network. Various methods are employed to ensure the security of data communication. This tutorial will introduce you to different network vulnerabilities and attacks. It also explains the security measures used to protect against them. It will cover the most common security protocols used for varying levels of networking, from the application layer down to the data link layer. By the end of this tutorial, you should understand network security at an intermediate level.

Audience

Network security tutorial is useful for:

• Beginners who want to learn network security basics.
• People interested in a career in Information and Network Security.
• IT professionals looking to expand their knowledge.
• Students studying computer science or related fields.
• Anyone looking for valuable learning material on network security.

Prerequisites to Learn Network Security

• Basic understanding of computer networking
• Basic knowledge of cryptography
• Familiarity with communication protocols is a plus
• General computer literacy
• Willingness to learn and explore new concepts

Network Security Tutorial Topics

The following are the topics (chapters) that you will learn in this tutorial:

1. Introduction to Network Security

• Network Security - Introduction
• Network Security - OSI Model
• Network Security - Application Layer
• Network Security - Network Layer
• Network Security - Data Link Layer

2. Types of Network Threats

• Network Security - Malware Types
• Network Security - Phishing and Social Engineering Attacks
• Network Security - Difference between DOS and DDOS attack
• Network Security - Man-in-the-Middle (MitM) Attacks
• Network Security - Eavesdropping and Packet Sniffing
• Network Security - Advanced Persistent Threats (APTs)

3. Network Security Principles

• Network Security - Principles
• Network Security Principles - Confidentiality
• Network Security Principles - Integrity
• Network Security Principles - Availability
• Network Security Principles - Authentication
• Network Security Principles - Authorization
• Network Security Principles - Accountability

4. Network Security Architectures

• Network Security Architectures
• Network Security Architectures - Security Zones (DMZ, Trusted/Untrusted Zones)
• Network Security Architectures - Network Segmentation
• Network Security Architecture - Defense in Depth
• Network Security Architectures - Zero Trust Architecture

5. Network Security Technologies

• Network Security - Firewalls
• Intrusion Detection System and Intrusion Prevention System
• Network Security - Virtual Private Networks (VPNs)
• Network Security - Network Access Control (NAC)
• Security Information and Event Management (SIEM) Systems
• Network Security - Endpoint Security Solutions

6. Cryptography in Network Security

• Symmetric Vs. Asymmetric Encryption
• Network Security - Hash Functions
• Network Security - Public Key Infrastructure
• Network Security - SSL/TLS Protocols
• Network Security - Cryptographic Attacks and Defenses

7. Wireless Network Security

• Wireless Security - WEP, WPA, WPA2, and WPA3
• Bluetooth Security: Threads, Measures, and Practices to Protect
• Securing Wireless Networks
• Common Attacks on Wireless Networks

8. Network Security Policies and Procedures

• Network Security - Policy Development
• Network Security - Incident Response Plan

Getting Started with Network Security Tutorial

Let's start learning network security with the first chapter by clicking on the "Network Security - Introduction" link: