Traceroute, MTR, and the Art of Diagnosing Network Problems
How traceroute works, how to read MTR output, and how to use both tools to pinpoint exactly where in the internet a connection is failing.
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Step-by-step guides to using IP, DNS and security tools effectively.
Port Scanning 101: What Open Ports Say About Your Server
nmap, Shodan, masscan: what port scanning reveals and why a single exposed Redis or RDP port can be the entry point for a breach. A practical guide for server owners.
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How to Check If Your VPN Is Leaking (DNS, WebRTC, IPv6)
Your VPN is on. Is your ISP still seeing everything? Three quiet leaks — DNS, WebRTC, IPv6 — kill most VPN setups. Five-minute test plan to catch them all.
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How to Hide Your IP Address in 2026: 5 Methods That Still Work
VPN, Tor, proxies, Apple Private Relay or just tethering — an honest 2026 comparison of the five methods that still work, what each one costs, and what it absolutely doesn't protect.
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Static vs Dynamic IP — Which One Do You Actually Need?
If you have to ask, you probably don't need a static IP. Here's the honest 2026 breakdown — who needs one, who doesn't, and the cheaper alternatives most guides skip.
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What Is My IP? Public vs Private IP Explained (2026)
Two addresses, one device: the plain-English guide to what an IP is, the difference between public and private, who sees yours, and what it actually reveals.
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