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Essential concepts for networking beginners
IP Addresses
How devices are identified on networks
DNS
How domain names translate to IP addresses
Ports
Network endpoints for different services
TCP and UDP
The core transport protocols of the internet
HTTP and the Web
How web browsers communicate with servers
SSL and TLS
Encryption and secure connections explained
Servers and Infrastructure
Physical and virtual machines that power services
Firewalls and Security
Protecting networks from threats and attacks
Routing and Networks
How data finds its way across networks
Performance and Reliability
Measuring and improving network performance
Monitoring Concepts
Understanding how to monitor your systems
Email Protocols
How email works behind the scenes
Advanced Topics
Deep dives into complex networking concepts
Tools and Commands
Practical tools for network troubleshooting
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