What is DNS
DNS (Domain Name System) is one of the fundamental infrastructures of the internet. This article introduces the basic concepts and working principles of DNS.
Basic Tutorial
Understand networking fundamentals through vivid metaphors
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📚 Reading Guide
To make networking knowledge easier to grasp, this tutorial uses plenty of everyday metaphors and analogies. Our goal is for everyone to master networking basics effortlessly, regardless of technical background. While these metaphors may not be perfectly rigorous, they will help you quickly build a foundational understanding of networking concepts.
Introduction to Networking Basics
In this tutorial, we’ll explain networking fundamentals through vivid metaphors and analogies. Our goal is for everyone to master these concepts effortlessly, regardless of technical background. While these metaphors may not be perfectly rigorous, they will help you quickly build a foundational understanding of networking concepts.
Unlike precise technical terms, this section uses plain language so non-technical readers can understand the basics of networking.
We’ll employ many fitting—or sometimes unfitting—metaphors and analogies, aiming to let readers grasp networking concepts quickly.
NullPrivate Fundamentals
NullPrivate effectively blocks ads, trackers, and malicious websites through DNS-level interception
How DNS Affects Your Internet Experience
DNS is the entry point for almost all network requests. Resolving a domain name typically takes only tens of milliseconds, but these milliseconds determine which server subsequent connections will point to, whether CDN nodes are hit nearby, and whether they will be hijacked by ISPs or observed by certain intermediate nodes. This article targets ordinary netizens, using continuous narrative to explain the relationship between DNS and internet experience.
Home Setup
A step-by-step guide to building the NullPrivate network ad-blocking service at home