Networking Fundamentals
Master networking from TCP/IP basics to advanced routing, switching, and network troubleshooting. Build the foundation every IT career needs.
Networking is the backbone of all modern IT infrastructure. Every server, container, and cloud service depends on reliable network connectivity — making networking skills essential for every IT professional.
This learning path takes you from the OSI model and TCP/IP fundamentals through subnetting, DNS, routing, firewalls, and VPNs to advanced network troubleshooting with tools like Wireshark and tcpdump.
What You'll Learn
- OSI model, TCP/IP stack, and network protocols
- IP addressing, subnetting, and CIDR notation
- DNS, DHCP, and name resolution
- Routing, switching, and VLAN configuration
- Network troubleshooting with Wireshark and tcpdump
- VPN, firewall, and network security fundamentals
Who Is This For?
IT professionals starting their networking journey, system administrators who need stronger network skills, anyone preparing for CompTIA Network+ or Cisco CCNA, and developers who want to understand how their applications communicate.
Learning Path
Beginner
4 lessons
Intermediate
5 lessons
Advanced
1 lessonsFree Cheat Sheets
Frequently Asked Questions
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