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Privacy Village Academy
Join The Community!AcademyAbout HGPE
  • Hitchhiker's Guide to Privacy Engineering
    • ❓What is HGPE?
      • ⚖️Who is this for?
      • 🧙‍♂️Privacy Engineering
      • 🎨Creative Privacy
      • 🔮Generative AI
      • 🧑‍💻About the Author
  • 🧙‍♂️The Ethical AI Governance Playbook 2025 Edition
    • 🤖Chapter 1 : AI Literacy
    • 🌍Chapter 2 : AI Governance in the 21st Century
    • ⌛Chapter 3 - Getting Started with AI Act Compliance
    • 🚀Chapter 4 : Rise of AI Governance: Building Ethical & Compliant AI
    • Chapter 5 : Introduction to the Lifecycle of AI
  • 🎓Privacy Engineering Field Guide Season 1
    • ❓Decoding the Digital World: Exploring Everyday Technology
    • 👁️Introduction: Why Privacy Matters?
      • Age of Mass Surveillance
      • Privacy & Democracy
      • Privacy & Government Surveillance
    • ⚡Chapter 1 : How Computers Work?
      • Electricity
      • Bits
      • Logic Gates
      • Central Processing Unit (CPU)
      • Graphic Processing Unit (GPU)
      • Motherboard
      • Data Storage
      • Databases
      • Operating System (OS)
      • Computer Code
      • Programming Languages
      • The File System
      • Bugs and Errors
      • Computer Virus
      • Internet of Things (IoT)
      • Cloud Computing
    • 🛰️Chapter 2 : How the internet works?
      • Physical Infrastructure
      • Network and Protocols
      • Switch
      • Routers
      • IP Address
      • Domain Name System (DNS)
      • Mac Address
      • TCP / IP
      • OSI Model
      • Packets
      • The Client - Server Architecture
      • Secure Socket Shell (SSH)
      • Transport Layer Security (TLS)
      • Firewall
      • Tunnels and VPNs
      • Proxy Server
    • 🖥️Chapter 3 : How Websites Work?
      • HTML
      • CSS
      • Javascript
      • Web Server
      • Browser
      • HTTP
      • Databases
      • Front End (Client Side)
      • Back End (Server Side)
      • Cookies
      • Local Storage
      • Session Storage
      • IndexedDB
      • XHR Requests
      • Web APIs
      • Webhooks
      • Email Server
      • HTTPS
      • Web Application Firewall
      • Single Sign-on (SS0)
      • OAuth 2.0
      • Pixels
      • Canvas Fingerprinting
      • Email Tracking
      • Containers
      • CI/CD
      • Kubernetes
      • Serverless Architecture
    • ⚛️Chapter 4 : How Quantum Computers Work?
      • Quantum Properties
      • Quantum Bits (Qubits)
      • Decoherence
      • Quantum Circuits
      • Quantum Algorithms
      • Quantum Sensing
      • Post-Quantum Cryptography
    • 📳Chapter 5 : Mobile Apps and Privacy
      • Battery
      • Processor
      • Mobile Operating Systems
      • Mobile Data Storage
      • Cellular Data
      • Mobile Device Sensors
      • Wireless Connectivity
      • Camera & Microphone
      • Mobile Apps
      • Software Development Kits (SDKs)
      • Mobile Device Identifiers
      • Bring Your Own Device (BYOD)
  • 🕵️‍♂️Privacy Engineering Field Guide Season 2
    • ❓Introduction to Privacy Engineering for Non-Techs
      • 🎭Chapter 1 : Digital Identities
        • What is identity?
        • Authentication Flows
        • Authentication vs. Authorization
        • OAuth 2.0
        • OpenID Connect (OIDC)
        • Self Sovereign Identities
        • Decentralized Identifiers
        • eIDAS
      • 👁️‍🗨️Chapter 2 : De-Identification
        • Introduction to De-Identification?
        • Input / Output Privacy
        • De-identification Strategies
        • K-Anonymity
        • Differential Privacy
        • Privacy Threat Modeling
  • 📖HGPE Story and Lore
    • 🪦Chapter 1 : The Prologue
    • ☄️Chapter 2 : Battle for Earth
    • 🦠Chapter 3 : A Nightmare To Remember
    • 🧙‍♂️Chapter 4 : The Academy
    • 🌃Chapter 5: The Approaching Darkness
    • ⚔️Chapter 6 : The Invasion
    • 🏰Chapter 7 : The Fall of the Academy
    • 🛩️Chapter 8 : The Escape
    • 🪐Chapter 9 : The Moon Cave
    • 🦇Chapter 10: Queen of Darkness
  • 📺Videos, Audio Book and Soundtracks
    • 🎧Reading Episodes
    • 🎹Soundtracks
  • 👾HGPE Privacy Games and Challenges
    • 🎮Data Privacy Day'23 / Privacy Treasure Hunt Game
    • 🧩Privacy Quest
  • 📬Subscribe Now!
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  1. Privacy Engineering Field Guide Season 1
  2. Chapter 2 : How the internet works?

Proxy Server

A proxy server performs the function of a firewall and filter. It helps prevent cyber attackers from entering a private network.

A proxy server performs the function of a firewall and filter. It helps prevent cyber attackers from entering a private network.

It acts as a gateway between you and the internet. It’s an intermediary server separating end users from the websites they browse. A proxy server is essentially a computer on the internet that has an IP address of its own.

Your computer knows this IP address, and when you send a request on the internet, it is routed to the proxy server's IP address first, which then gets the response from the web server and forwards the data from the page to your computer’s browser.

A proxy server can change your IP address, so the web server doesn’t know exactly where you are in the world or it can block access to certain web pages, based on their IP address.

Forward Proxy

A forward proxy sits in front of clients and is used to get data to groups of users within an internal network. When a request is sent, the proxy server examines it to decide whether it should proceed with making a connection.

Reverse Proxy

A reverse proxy is positioned in front of web servers and forwards requests from a browser to the web servers. It works by intercepting requests from the user at the network edge of the web server. It then sends the requests to and receives replies from the origin server.

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Last updated 2 years ago

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