DNS How-to Guides

Step-by-step guide to changing your DNS servers on Windows 11 using Settings and PowerShell.

Change your DNS servers on any Android phone or tablet. Covers Private DNS and Wi-Fi settings.

Set custom DNS servers on iOS, iPadOS, and macOS using system settings.

Configure DNS at the router level so every device on your network uses your chosen servers.

Set custom upstream DNS servers in Pi-hole for network-wide ad blocking with your preferred resolver.

Configure DNS servers on Linux using systemd-resolved, NetworkManager, or resolv.conf.

Understand what NXDOMAIN hijacking is, why ISPs do it, and how to use a clean DNS resolver to avoid it.

Compare DoH and DoT encrypted DNS protocols. Learn the differences, pros, cons, and which one fits your setup.

Deploy a Pi-hole DNS filtering server for network-wide ad blocking. Covers Debian, RHEL, Docker, Raspberry Pi, Unbound integration, DNSSEC, and blocklist management.

Install and configure BIND as an authoritative or recursive DNS server on Linux. Covers zone files, DNSSEC, ACLs, logging, and performance tuning.

Deploy PowerDNS with MySQL or PostgreSQL backend. Covers zone management, DNSSEC, the REST API, high availability, and DNS automation.

Install and configure Unbound as a privacy-focused recursive DNS resolver on Linux. Covers DNSSEC validation, Pi-hole integration, DNS-over-TLS, performance tuning, and monitoring.

Step-by-step guide to using the publicdns.info DNS Privacy Checker. Understand your A-F privacy score, interpret each of the 6 test dimensions, and fix common DNS privacy issues.

Complete guide to the publicdns.info DNS speed benchmark. Learn how to test latency to 50+ servers, understand the Gaming Score algorithm, and set up the fastest DNS for your platform.

Learn how PublicDNS.info tests and scores thousands of DNS servers every 72 hours. Our methodology covers reliability, latency, DNSSEC, NXDOMAIN hijacking, and privacy.

Step-by-step troubleshooting for DNS issues on Windows 10 and 11. Flush cache, reset adapter, switch DNS servers.

Resolve DNS problems on macOS. Clear DNS cache, reset network settings, configure custom DNS servers.

Troubleshoot DNS issues on Android phones and tablets. Private DNS settings, Wi-Fi DNS, mobile data fixes.

Fix DNS resolution problems on iPhone and iPad. Reset network settings, configure DNS manually, VPN conflicts.

Troubleshoot router DNS problems. Change DNS servers, fix DHCP, update firmware, resolve ISP DNS hijacking.

Resolve DNS issues on Linux. Fix resolv.conf, systemd-resolved, NetworkManager DNS, and DNSSEC failures.