Posts tagged: dns
Wildcard TLS with Certbot and Cloudflare DNS-01 — a copy-paste walkthrough
A complete end-to-end guide to issuing a Let's Encrypt wildcard certificate with Certbot and a DNS-01 challenge against Cloudflare — exact commands, credentials setup, verification, and auto-renewal.
How a Forgotten TXT Record Broke My Blog for Days
After migrating DNS from Spaceship to Cloudflare, a single missing TXT record sent my GitLab Pages blog into a 401 auth loop for days.
Switching to a Private DNS Resolver — Cloudflare vs Quad9 Benchmarked
Benchmarked Singtel ONT, Google, Cloudflare, and Quad9 from Singapore — Quad9 wins on privacy and DoH speed, Cloudflare wins on plain DNS latency.
Setting Quad9 Private DNS on Android
How to set Quad9 as your private DNS provider on Android — encrypted DNS without root or apps.
Setting Quad9 DNS on CachyOS — Using the Built-in DNS Changer
How CachyOS's built-in DNS Changer (CachyOS Hello) configures system-wide DNS-over-HTTPS via blocky and systemd-resolved, and how to set Quad9.