Why DNS-over-HTTPS Breaks Pi-hole and Parental Controls
Firefox turns on DNS-over-HTTPS by default, quietly routing lookups around Pi-hole and router-level parental controls. Here’s why, and three ways to fix it.
dns-over-https
DNS over HTTPS vs DNS over TLS: Encrypted DNS Explained
DNS over HTTPS vs DNS over TLS confuses even seasoned admins. One hides your lookups inside web traffic; the other keeps them visible. Here is how DoH and DoT differ and which to turn on.
What Is a DNS Leak?
What is a DNS leak? It sends your name lookups to your ISP instead of through the VPN. Learn why DNS leaks happen, how to test for one, and how to fix it.
How to Troubleshoot Network Connectivity (Step by Step)
Learn to troubleshoot network connectivity with a systematic 7-step method that works every time. Start at the physical layer and work up through IP, gateway, DNS, and firewall checks, with the exact commands to run.