Networking Fundamentals

Networking Fundamentals

The OSI and TCP/IP models, IP addressing, subnetting, DNS, HTTP/HTTPS, TCP vs UDP, TLS/SSL, sockets, load balancers, proxies, CDNs, and the networking concepts every software engineer needs to debug, secure, and scale distributed systems.

FundamentalsTopics 1–12
  • ·What is Networking?
  • ·The OSI Model
  • ·The TCP/IP Model
  • ·IP Addressing
  • ·Subnetting & CIDR
  • ·DNS
  • ·HTTP & HTTPS
  • ·TCP vs UDP
  • ·Ports & Sockets
  • ·MAC Addresses & ARP
  • ·Routing
  • ·NAT & Private Networks
Start Fundamentals →
IntermediateTopics 13–24
  • ·TLS/SSL
  • ·HTTP/2 & HTTP/3
  • ·WebSockets
  • ·Load Balancers
  • ·Reverse & Forward Proxies
  • ·CDNs
  • ·Firewalls
  • ·VPNs
  • ·DHCP
  • ·ICMP & Diagnostics
  • ·REST API Networking
  • ·gRPC & Protocol Buffers
Start Intermediate →
AdvancedTopics 25–36
  • ·TCP Deep Dive
  • ·QUIC Protocol
  • ·BGP & Internet Routing
  • ·Network Security Attacks
  • ·mTLS & Zero Trust
  • ·Service Meshes
  • ·Anycast & GeoDNS
  • ·Container Networking
  • ·WebRTC
  • ·IPv6 Deep Dive
  • ·Network Namespaces & eBPF
  • ·Network Performance Tuning
Start Advanced →
AppliedTopics 37–45
  • ·Debugging Network Issues
  • ·Resilience Patterns
  • ·Rate Limiting
  • ·Connection Pooling
  • ·Network Observability
  • ·Cloud Networking
  • ·Content Delivery at Scale
  • ·Load Testing Networks
  • ·Interview Patterns
Start Applied →