HTTP

Networking basics for student developers: how IP addresses and ports work, what DNS actually does, TCP vs UDP, HTTP status codes and HTTPS, the client-server model, latency vs bandwidth, and the tools to reach for when a request fails.

A technical deep-dive into webhooks: what they are, how they work, how to build a secure receiver with HMAC signature validation, handle retries idempotently, and test locally during development.

A complete guide to HTTP Content-Length header and chunked transfer encoding. Learn how servers communicate response size, when to use each approach, and practical implementation examples for developers.

Learn how X-Forwarded-For and Forwarded HTTP headers help preserve client IP addresses through proxies and load balancers. Understand their use cases for logging, security, rate limiting, and geolocation.

Learn what causes the 'Too Many Redirects' error, how to diagnose it, and implement effective solutions for your website or application.

Complete guide to localhost:8080 - the popular alternative HTTP port used by Tomcat, Jenkins, development servers, and web applications.

502 Bad Gateway error occurs when a reverse proxy server cannot receive a valid response from upstream server. Learn causes and troubleshooting steps.

Effortlessly share Jupyter Notebooks globally with Pinggy. Securely collaborate and obtain a public URL for your locally running Jupyter Notebook.