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
Navigate through the learning materials and practice exercises.
What we have learnt
- Basic networking concepts like IPs, DNS, ports, and protocols are essential in understanding cyber threats.
- Firewalls, IDS, and VPNs are critical tools to protect network infrastructure.
- Network vulnerabilities often stem from poor configuration, outdated software, or weak credentials.
- Regular monitoring and updates are key to maintaining a secure network.
Key Concepts
- -- IP Address
- A unique identifier for a device on a network, which can be static or dynamic.
- -- DNS
- The system that translates domain names into IP addresses, acting like the phonebook of the internet.
- -- Firewall
- A network security device that monitors and controls incoming and outgoing traffic based on predefined security rules.
- -- Protocols
- Rules that govern data communication, ensuring reliable and secure interactions on networks.
- -- Vulnerabilities
- Weaknesses in a network that can be exploited by attackers, such as open ports and weak passwords.
Additional Learning Materials
Supplementary resources to enhance your learning experience.