Overview What You Will Learn Curriculum Instructor

Course Overview

Network security is essential for protecting systems, applications, users, and sensitive information from unauthorized access, attacks, and network-based threats. This course provides a structured understanding of how networks operate and how security controls, protocols, authentication mechanisms, firewalls, VPNs, and intrusion detection and prevention technologies help establish and maintain secure network environments. This course begins with network security fundamentals, including physical network concepts, core protocols, security goals, and open-source tools such as Wireshark, Nmap, OpenVPN, and pfSense. It then covers application, transport, network, and data link layer security, including email security, PGP, S/MIME, DNSSEC, TLS, HTTPS, SSH, VPNs, IPsec, ARP security, VLANs, wireless security, and Spanning Tree Protocol security. The course also explores network access control, authentication, authorization, ACLs, RBAC, NAC, firewalls, DMZs, IDS/IPS, network segmentation, and incident handling through practical labs and simulations. You will gain practical knowledge of network security concepts, protocols, tools, access controls, firewalls, VPNs, and defensive techniques for securing network environments.

What You Will Learn

  • Learn how network security protects all layers and how to identify, prevent, and respond to common network threats.
  • Learn how protocols like TCP/IP and DNS work together, and how attackers exploit them to compromise network systems.
  • Understand encryption, VPNs, and IPsec to ensure secure data transmission and protect network communications.
  • Build skills in firewalls, IDS/IPS, and access control while learning effective network protection methods.

Program Curriculum

  • What is Network Security?
  • Physical Network Fundamentals
  • Core Network Protocols (TCP/IP, UDP, ICMP)
  • Network Security Goals and Principles
  • Achieving Network Security
  • Free/Open-source Tools (Wireshark, Nmap, OpenVPN, pfSense)
  • Chapter 1 Quiz

  • Protecting Data in Transit
  • Email Security Essentials
  • PGP (Pretty Good Privacy)
  • S/MIME (Secure/Multipurpose Internet Mail Extensions)
  • DNS Security Basics and DNSSEC
  • Mini Lab: Exploring DNS Resolution
  • Chapter 2 Quiz

  • Importance of Transport Layer Security
  • TLS (Transport Layer Security) Deep Dive
  • HTTPS and Secure Browsing Practices
  • SSH (Secure Shell) Configurations
  • Chapter 3 Quiz

  • Network Layer Security Concepts
  • Virtual Private Networks (VPNs)
  • IPsec Fundamentals and Encryption Protocols
  • IPsec Modes of Communication
  • IPsec Protocols
  • IPsec Security Associations
  • Chapter 4 Quiz

  • Data Link Layer Vulnerabilities (ARP Spoofing, MAC Flooding)
  • Mini Lab: Understanding ARP in Action
  • Securing Ethernet LANs
  • VLAN Security Measures
  • Spanning Tree Protocol Security
  • Wireless LAN Security (WPA3, Rouge AP Detection)
  • Chapter 5 Quiz

  • Controlling Access to Network Devices
  • User Authentication and Authorization in Networks
  • Password-based Authentication
  • Centralized Authentication Methods (RADIUS, TACACS+)
  • Access Control Lists (ACLs)
  • Role-based Access Control (RBAC)
  • Network Admission Control (NAC)
  • Mini Lab: Exploring User Accounts and Privileges
  • Chapter 6 Quiz

  • Firewalls Based on Network Placement
  • Firewall Deployment Models and Filtering Methods
  • Firewall Deployment with a DMZ (Demilitarized Zone)
  • IDS/IPS Network Setup
  • Mini Lab: Viewing Firewall Rules and Network Connections
  • Chapter 7 Quiz

  • Chapter 8: Advanced Network Security Practices
  • Network Segmentation and Segregation
  • Network Incident Handling
  • Chapter 8 Quiz
Load more modules

Instructor

Doğaç Artem

After dedicating many years to international projects and business development in various managerial roles, primarily focusing on enhancing and optimizing businesses, Dogac decided to share his experiences and knowledge to help individuals become more strategic, impactful, and innovative. In 2022, he co-founded Six Sigma Academy Istanbul, where he has had the privilege of training thousands of students across multiple countries. His training programs span a wide range of topics, including project management methodologies, business and personal development, and sales skills. He is committed to delivering courses that are straightforward, easy to understand, and relevant to today’s ever-changing world. Designed to impart practical skills drawn from his extensive professional journey, his courses aim to provide learners with actionable insights and tools for success.

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