Connections

ADO.NET Basics

Learn how Classic ASP.NET Web Forms applications connect to and query relational databases using ADO.NET's connection, command, and disconnected DataSet object…

Hooks and Connections

Understand how Airflow Connections store credentials for external systems and how Hooks provide a Python interface to interact with them.

Authenticating WebSocket Connections

Learn how to securely authenticate long-lived WebSocket connections, including handshake-time token validation, per-message authorization, and common security…

Debugging WebSocket Connections

Practical techniques for diagnosing failed handshakes, dropped connections, and mysterious silent disconnects in WebSocket-based applications.

Opening and Closing Connections

How a WebSocket connection is established through the HTTP upgrade handshake and gracefully terminated using the closing handshake.

Ping/Pong and Heartbeats

How WebSocket ping and pong control frames keep connections alive and let both sides detect dead peers.

Rate Limiting WebSocket Connections

Strategies for throttling connection attempts and message throughput to protect WebSocket servers from abuse and resource exhaustion.

Reconnection Strategies

How to design client-side reconnect logic, backoff, and state resync so WebSocket-based apps recover gracefully from dropped connections.

AMQP Protocol Explained

A deep dive into the Advanced Message Queuing Protocol (AMQP) and the model RabbitMQ implements: connections, channels, exchanges, queues, and bindings.