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Fundamentals of Networking & Security

The chapter covers fundamental networking concepts that are essential for understanding cyber security. It highlights key elements such as IP addresses, DNS, ports, and protocols, while emphasizing the importance of firewalls, IDS, and other security tools to protect networks against vulnerabilities. Real-world examples illustrate the consequences of poor network security practices.

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Sections

  • 3

    Fundamentals Of Networking & Security

    This section covers essential networking concepts and security measures crucial for understanding cyber security.

    Learning Practice

  • 3.1

    What Is Networking In Cyber Security?

    Networking involves connecting devices to facilitate data sharing, and understanding this is vital for cybersecurity.

    Learning Practice

  • 3.2

    Basic Networking Concepts

    This section introduces key networking concepts crucial for understanding cyber security, including IP addresses, DNS, ports, and protocols.

    Learning Practice

  • 3.2.1

    Ip Address (Internet Protocol Address)

    This section introduces the concept of IP addresses as unique identifiers on networks, explaining their types and structures in both IPv4 and IPv6 formats.

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  • 3.2.2

    Dns (Domain Name System)

    The Domain Name System (DNS) translates human-readable domain names into IP addresses, enabling users to access websites easily.

    Learning Practice

  • 3.2.3

    Ports

    Ports are crucial logical access points that facilitate communication over networks, playing a key role in various protocols.

    Learning Practice

  • 3.2.4

    Protocols

    Protocols are essential rules that govern data communication in networking, fundamental for ensuring the reliability and security of data exchange.

    Learning Practice

  • 3.3

    Firewalls And Network Security Tools

    Firewalls and network security tools are essential components for protecting networked systems from cyber threats.

    Learning Practice

  • 3.3.1

    Firewalls

    Firewalls are critical security devices that monitor and control network traffic based on security rules.

    Learning Practice

  • 3.3.2

    Ids & Ips

    This section discusses Intrusion Detection Systems (IDS) and Intrusion Prevention Systems (IPS) as critical components of network security.

    Learning Practice

  • 3.3.3

    Other Network Security Tools

    This section discusses various network security tools, including VPNs, proxy servers, and NAC, which help enhance network security.

    Learning Practice

  • 3.4

    Common Network Vulnerabilities

    This section discusses prevalent vulnerabilities in computer networks that can be exploited by attackers.

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  • 3.5

    Securing A Network

    This section discusses essential practices for securing a network against cyber threats.

    Learning Practice

  • 3.6

    Real-World Example

    This section discusses the Target Corporation data breach that occurred in 2013, emphasizing the lack of network security as a key vulnerability.

    Learning Practice

  • 3.7

    Key Takeaways

    Understanding basic networking concepts and security tools is crucial for protecting against cyber threats.

    Learning Practice

References

Chapter 3_ Fundamentals of Networking & Security.pdf

Class Notes

Memorization

What we have learnt

  • Basic networking concepts l...
  • Firewalls, IDS, and VPNs ar...
  • Network vulnerabilities oft...

Revision Tests

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