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Tag: Network Security

What Is a DNS Leak? How to Test, Fix, and Prevent It

Posted on October 15, 2026October 15, 2026 By Beloslava Petrova No Comments on What Is a DNS Leak? How to Test, Fix, and Prevent It
What Is a DNS Leak? How to Test, Fix, and Prevent It
DNS

A VPN can hide your public IP address and send your Internet traffic through an encrypted tunnel. But there is one small piece of the connection that can quietly take a different route: DNS. When that happens, your website traffic may travel through the VPN while your DNS requests still go somewhere else. This is … Read More “What Is a DNS Leak? How to Test, Fix, and Prevent It” »

What Is a Subnet? A Beginner’s Guide

Posted on October 14, 2026October 14, 2026 By Beloslava Petrova No Comments on What Is a Subnet? A Beginner’s Guide
What Is a Subnet? A Beginner’s Guide
Network

A subnet is a term you may come across when learning about computer networks, IP addresses, or internet connections. Although it sounds technical, the concept is surprisingly simple. A subnet is a smaller section of a larger network that helps organize connected devices and manage how they communicate. Whether you’re connecting devices at home or … Read More “What Is a Subnet? A Beginner’s Guide” »

DNS Server Not Responding: Causes and Fixes

Posted on September 29, 2026September 29, 2026 By Beloslava Petrova No Comments on DNS Server Not Responding: Causes and Fixes
DNS Server Not Responding: Causes and Fixes
DNS

Few Internet errors are more frustrating than “DNS server not responding.” Your Wi-Fi may still look connected and everything seems normal, yet websites suddenly refuse to open. Fortunately, the cause is often simple. A router restart, fresh DNS cache, or different DNS resolver may be all you need. When those quick fixes do not work, … Read More “DNS Server Not Responding: Causes and Fixes” »

What Is DNS over QUIC and How Does It Work?

Posted on September 17, 2026September 17, 2026 By Beloslava Petrova No Comments on What Is DNS over QUIC and How Does It Work?
What Is DNS over QUIC and How Does It Work?
DNS

DNS over QUIC is a newer way to send DNS queries securely over the Internet. It combines encrypted DNS with the speed and connection handling of the QUIC protocol. For users, the goal is simple: keep DNS requests private, reduce delays, and make connections more resilient when networks change. What Is DNS over QUIC? DNS … Read More “What Is DNS over QUIC and How Does It Work?” »

How Split-Horizon DNS Works and When to Use It

Posted on September 10, 2026September 10, 2026 By Beloslava Petrova No Comments on How Split-Horizon DNS Works and When to Use It
How Split-Horizon DNS Works and When to Use It
DNS

Split-Horizon DNS is one of those DNS concepts that sounds more complicated than it really is. The idea is simple: the same domain name can return one answer to users inside a private network and another answer to users on the public Internet. This approach is often used by businesses that want employees to access … Read More “How Split-Horizon DNS Works and When to Use It” »

DNS and AI: How Artificial Intelligence Is Changing Domain Name Systems

Posted on August 24, 2026August 24, 2026 By Beloslava Petrova No Comments on DNS and AI: How Artificial Intelligence Is Changing Domain Name Systems
DNS and AI: How Artificial Intelligence Is Changing Domain Name Systems
DNS

DNS is a core part of how the Internet works, connecting domain names with the right online services. Today, artificial intelligence is adding a new layer to DNS by helping detect threats, analyze traffic and automate network management. So, what does the combination of DNS and AI actually look like? Let’s take a closer look. … Read More “DNS and AI: How Artificial Intelligence Is Changing Domain Name Systems” »

Why Use a VPN? Benefits, Risks, and Use Cases

Posted on August 10, 2026August 10, 2026 By Beloslava Petrova No Comments on Why Use a VPN? Benefits, Risks, and Use Cases
Why Use a VPN? Benefits, Risks, and Use Cases
Network

A VPN is one of the most widely used tools for improving online privacy, securing remote connections, and protecting data on untrusted networks. Businesses use VPNs to connect employees to internal systems, while individual users rely on them when using public Wi-Fi, accessing home networks remotely, or reducing how much information their Internet connection exposes. … Read More “Why Use a VPN? Benefits, Risks, and Use Cases” »

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