Course: Complete Ethical Hacking Beginners to Advanced
Importance of understanding ethical hacking through legal activities.
Definition of Ethical Hacking
Hacking: Compromising systems, stealing data.
Ethical Hacking: Involves legal activities defined by rules and regulations.
Legal Considerations: Must obtain written permission from system owners for testing.
Growing Demand for Cyber Security
Continuous growth in demand for ethical hacking skills.
Increasing rates of cyber crime impacting families, governments, and corporates.
Role of Networking in Ethical Hacking
Essential for ethical hackers to understand how systems communicate and transfer data.
Importance of identifying vulnerabilities in communication channels.
Key Networking Concepts
Computer Networking: Communication mechanism between systems.
Sharing software, files, information.
Importance of information preservation and security.
Types of Networks:
LAN (Local Area Network): Connects 5-10 systems.
MAN (Metropolitan Area Network): Connects multiple systems across a city.
WAN (Wide Area Network): Connects systems across long distances (e.g. the Internet).
Networking Entities:
IP Address: Primary identifier for systems on a network.
MAC Address: Unique identifier for hardware devices in a network.
Types of IP Addresses
IPv4 and IPv6: Different versions of IP addresses to suggest unique identifiers; IPv4: 32-bit, limit 4.7 billion addresses; IPv6: 128-bit, virtually limitless addresses.
Static vs Dynamic: Static IPs don’t change, while dynamic IPs can change with each session.
Below Key Networking Tools & Protocols
Examples of protocols include TCP, UDP, and the respective ports used for communication.
Introduction to Protocols
Definition: Protocols define the rules for data transmission and reception.
TCP vs UDP
TCP: Reliable, establishes a connection.
UDP: Unreliable, does not establish a connection, data is sent without guaranteed delivery.
Domain Names and DNS
Domain Name System (DNS): Translates domain names into IP addresses allowing us to access websites.
Types of DNS Records: A record, CNAME, MX record, etc.
Layers of Internet
Surface Web: Accessible through standard search engines.
Deep Web: Non-indexed content not accessible via standard searches.
Dark Web: Section of the deep web where illegal activities may take place.
Understanding VPN and Proxy Services
VPN: Provides anonymity by allowing users to connect to the internet through a remote server.
Issues with VPN: Long-term static IP, risk of leaking DNS, etc.
Proxy: Acts as an intermediary, circumventing firewall and security layers.
Mac Address Modification
Understanding how Mac addresses can be modified, including methods for doing so manually and automatically.
Conclusion
Summarized the core concepts of ethical hacking, networking, and importance of anonymity through the internet.
Action Items:
Review each key networking concept.
Familiarize yourself with the definitions and examples provided.