Learn the most common cache replacement policies—LRU, LFU, FIFO, and Random. Discover how they work, when to use them, and how to choose the right one for your caching strategy based on performance and complexity.
Caching is a powerful technique used to speed up applications, reduce server load, and improve user experience. This post introduces the fundamentals of caching, including how it works, types of caching, key concepts, and why it's crucial in modern web development.
Learn how DNS load balancing and high availability techniques like round-robin DNS, geographically distributed servers, anycast routing, and CDNs keep websites fast, reliable, and always available for users worldwide.
Discover what DNS (Domain Name System) is and why it's essential for the internet. Learn how DNS translates website names into IP addresses, the key components involved, and how DNS keeps the internet running smoothly.
Learn how DNS converts domain names into IP addresses through recursive and iterative queries. Discover the role of caching, TTL, and negative caching in speeding up DNS lookups and improving internet performance.