Welcome to the Private Internet Access Blog

  • What Is the Purpose of the OSI Model? A Guide to the 7 Layers

    What Is the Purpose of the OSI Model? A Guide to the 7 Layers

    The Open Systems Interconnection (OSI) model is a conceptual framework for understanding network communication. Although modern networks use TCP/IP, the OSI framework remains widely used for learning, designing, and troubleshooting networks. In this guide, we’ll explain its purpose, examine the seven layers, and explore its benefits along with how it compares with TCP/IP. Table of… Read more

  • What Is QUIC Protocol and How Does It Differ From TCP?

    What Is QUIC Protocol and How Does It Differ From TCP?

    The internet loads far more than simple web pages. A single website may pull text, images, videos, fonts, scripts, analytics, ads, and background application data from multiple sources at the same time. Every one of those elements depends on a transport protocol to move data between your device and the relevant server. For decades, Transmission… Read more

  • What Is Federated Identity and How Does It Work?

    What Is Federated Identity and How Does It Work?

    A federated identity is a way of linking one verified digital identity across multiple independent systems, so authentication happens once and access follows automatically. For individuals, that means less friction. For organizations, it means tighter access control, fewer credentials to manage, and a smaller attack surface. In this article, we’ll break down how federated identity… Read more

  • Private IP Addresses: What They Are and How They Work

    Private IP Addresses: What They Are and How They Work

    Your home network likely connects a variety of devices, including phones, laptops, and smart TVs, and yet they all share a single public IP address. That’s because behind the scenes, your router assigns each device a private IP address that only works inside your local network. In this guide, we’ll explain what private IP addresses… Read more

  • What Is SSL Inspection? How It Works and Risks Explained

    What Is SSL Inspection? How It Works and Risks Explained

    SSL inspection is a very common practice in high-risk departments where sensitive data runs the risk of being compromised. On the other hand, SSL inspection can also introduce a privacy vulnerability, so you may be wondering if it’s worth it. In this guide, you’ll learn all about SSL inspection – what it is, how it… Read more

  • WPA-Enterprise Explained: How It Works and When to Use It

    WPA-Enterprise Explained: How It Works and When to Use It

    Most Wi‑Fi networks use a single shared password to control access. This is a simple solution, but it isn’t ideal if you need to manage access for a large team or protect sensitive data. WPA‑Enterprise offers a more secure alternative. By enabling you to authenticate each user individually, it gives you greater control, easier access… Read more