Posts tagged: sysadmin
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.
CachyOS Mirror Timer: Why Your Updates Crawl and the 10-Second Fix
The default cachyos-rate-mirrors timer runs every 10 days. Stale mirrorlists mean slow or failed updates. A systemd drop-in drops it to 7 days — survives package updates, zero upstream impact.