Networking Fundamentals for Modern Apps: Protocols, Topologies, and Security
Networking Fundamentals for Modern Apps: Protocols, Topologies, and Security Modern applications rely on networks every day. A good network design helps apps stay fast, reliable, and safe. This article covers essentials you can use when planning or improving your systems. Protocols power how data travels. The main ideas are simple: rules, channels, and trust. In practice, you will meet: TCP/IP basics: a robust framework for data delivery and routing across networks. HTTP and HTTPS: the standard for web traffic and API calls. TLS encryption: keeps data private between endpoints. QUIC: a newer transport that reduces latency by working over UDP. DNS basics: translating names into machine addresses and caching results for speed. Understanding these helps you estimate latency, choose transports, and design secure paths from users to services. In public networks, you often combine TLS with HTTP over TCP or QUIC for speed and safety. ...