Network Security

Explore network security fundamentals in this comprehensive lecture. Delve into the OSI layers, from Physical to Application, and understand their roles in network communication. Learn essential Linux commands and how to use Wireshark for network reconnaissance. Discover the importance of firewalls, Intrusion Detection Systems (IDS), and encryption protocols like TLS/SSL in protecting networks from unauthorized access. Gain insights into IP addressing, the attack model, and best practices for maintaining network security through regular updates and miscellaneous security measures. Perfect for those seeking to understand how to safeguard corporate networks and prevent theft of sensitive information like credit card numbers and social security numbers.

Introduction
Who am I
Disclaimer
Networks
OSI Layers
Physical Layer
Data Link Layer
Network Layer
Transport Layer
TCP vs UDP
Session Layer
Presentation Layer
Application Layer
Questions
Network Recon
Linux Commands
Wireshark
Depo
IP Address
Network Security
Attack Model
Firewall
IDS
TLS SSL
Updates
Miscellaneous
IP Addresses