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A lecture exploring WebSockets, their role in enabling real-time, bidirectional web communication, and a practical example of building a chat application.

A deep dive into HTTPS, TLS, symmetric and asymmetric encryption, certificates, and their implementation in Node.js, covering encryption basics, TLS handshake, certificate chains, and practical code examples.

A lecture summary exploring HTTP/1.1's simplicity, key features like persistent connections and mandatory Host headers, and its limitations such as HTTP smuggling and lack of buffering.

A comprehensive summary of a lecture on Transport Layer Security (TLS), covering its purpose, key concepts, versions, handshake process, key exchange algorithms, and real-world implications like the Heartbleed bug.

A comprehensive guide to the Transmission Control Protocol (TCP), covering its key features, connection management, and practical implementations.

A reflective note on how using `SELECT *` in SQL can introduce hidden performance costs and maintenance issues.

A personal look into how databases manage concurrent access through two main strategies: optimistic and pessimistic concurrency control.

This lecture covers how MySQL 8 improved locking in InnoDB with smarter page-level concurrency and B+ tree optimizations.