
Develop core computer network security skills from scratch to advanced, combining theoretical fundamentals with practical tools to secure networks from design to operation, including incident handling and monitoring.
Explore computer network topologies by comparing physical and logical layouts, including bus, ring, star, and mesh, and weigh their advantages, drawbacks, and security implications.
Explore the ISO/OSI seven-layer open system interconnection model, its end-to-end data flow, layer responsibilities from physical to application, and vendor-interoperable protocols like TCP/IP, IPX/SPX, and Apple Talk.
Compare tcp and udp transport protocols, detailing sockets, port numbers, and session multiplexing, with tcp delivering reliable, connection-oriented delivery and udp offering best-effort, real-time data.
Explore the benefits of wireless networks over wired, including mobility, flexibility, scalability, and cost savings. Enable guest access, remote work, bring your own device, and expansion with access points.
Explore the drawbacks of wireless networks, including coverage limitations caused by walls, distances, and weather, as well as security risks like sniffing, costs, and the challenge of replacing wired infrastructure.
Design a secure network from the start by separating public, DMZ, and private zones, applying defense in depth with a firewall and ACLs to publish internet services while protecting assets.
Protect internal networks from external threats with a firewall that inspects traffic at the gateway and blocks unauthorized access. Consider limitations and layered defenses like honeypots and DMZs.
Explore how packet filtering, NAT, proxy, and stateful inspection firewalls classify traffic, compare speed and security, and illustrate personal and border protections for robust network defense.
By the end of this course you will be fully aware of the wired and wireless computer networks basics, devices, and protocols in a step-by-step pace. You will also reach the professional level in networks security in terms of concepts, technologies, and tools. The course requires no background or pre-requisite, yet you will be able to understand all the up-to-date terminologies in the networks security during the lectures.
This course is organized as follows:
Section One: Introduction to Computer Networks
Lecture 1: What is a Computer Network?
Lecture 2: Computer Networks Topologies
Lecture 3: Computer Networks Categories
Lecture 4: Computer Networks Devices and Services
Lecture 5: Computer Networks Transmission Media
Section Two: ISO/OSI Model (7 Layers)
Lecture 1: Why ISO/OSI Model?
Lecture 2: Application, Presentation, and Session Layers
Lecture 3: Transport and Network Layers
Lecture 4: Data Link and Physical Layers
Lecture 5: ISO/OSI Model in Action
Section Three: TCP/IP Protocol Suite
Lecture 1: Introduction to Computer Networks Protocols
Lecture 2: IP Protocol
Lecture 3: TCP and UDP Protocols
Lecture 4: Application Protocols
Lecture 5: TCP/IP Characteristics and Tools
Section Four: Wireless Networks
Lecture 1: Wireless Networks Benefits
Lecture 2: Wireless Networks Types
Lecture 3: Wireless Networks Protocol (Wi-Fi)
Lecture 4: Wireless Networks Devices
Lecture 5: Wireless Networks Drawbacks
Section Five: Computer Networks Security
Lecture 1: Security Goals
Lecture 2: Securing the Network Design
Lecture 3: TCP/IP Security and Tools
Lecture 4: Port Scanning and Tools
Lecture 5: Sniffing and Tools
Section Six: Firewalls and Honeypots
Lecture 1: Why Using a Firewall?
Lecture 2: Firewalls Rules
Lecture 3: Firewalls Filtering
Lecture 4: Honeypots
Lecture 5: Bypassing Firewalls
Section Seven: Intrusion Detection and Prevention Systems (IDS/IPS)
Lecture 1: What is Intrusion Detection Systems (IDS)?
Lecture 2: Network IDS (NIDS)
Lecture 3: NIDS Challenges
Lecture 4: Snort as NIDS
Lecture 5: Intrusion Prevention Systems (IPS)
Section Eight: Wireless Networks Security
Lecture 1: Wired Equivalent Privacy WEP Attacking
Lecture 2: WPA and AES Protocols
Lecture 3: Wireless Security Misconceptions
Lecture 4: Wireless Attacks and Mitigation
Lecture 5: Secure Network Design with Wireless
Section Nine: Physical Security & Incident Handling
Lecture 1: Physical Security Objectives
Lecture 2: Physical Threats and Mitigation
Lecture 3: Defense in Depth (DiD)
Lecture 4: What is an Incident?
Lecture 5: Incident Handling
Section Ten: Computer Networks Security Conclusion
Lecture 1: Confidentiality, Integrity, and Availability (CIA)
Lecture 2: Assets, Threats, and Vulnerabilities
Lecture 3: Risks and Network Intrusion
Lecture 4: Common Attacks
Lecture 5: Security Recommendations