Your own server, your own domain: DNS, TLS and deployment without guesswork.

• DNS Propagation Time: Calculate It Instead of Waiting 48h

  DNS propagation time equals the old record's TTL: usually 5 to 60 minutes for records, up to 48 hours for .com nameserver changes. How to work it out with dig.

• Let's Encrypt Certificate: certbot Setup, Renewal, Limits

  Get a Let's Encrypt certificate on Debian or Ubuntu with certbot, automate renewal and know the rate limits: 50 certificates per domain per week, 5 duplicates.

• Point a Domain to Your Server: DNS Records, Not Forwarding

  To point a domain to your server, set an A record (and AAAA for IPv6) to the server's IP, then add a virtual host and a certificate. Six steps, with dig.

• Set an A Record: Fields, Zone File Syntax and dig Checks

  How to set an A record in four fields: name, TTL, type, IPv4 address. Includes zone file syntax, the @ vs blank question, dig checks and common panel mistakes.

Records, TTL, propagation: everything to point a domain at a server.

• AAAA Record: How to Add IPv6 to Your Domain Safely
• CNAME vs A Record: Which One to Use and Where
• DNS Propagation Time: Calculate It Instead of Waiting 48h
• DNS TTL: Sensible Values for A, MX and TXT Records
• Point a Domain to Your Server: DNS Records, Not Forwarding
• Set an A Record: Fields, Zone File Syntax and dig Checks

Getting and renewing certificates automatically.

• Let's Encrypt Certificate: certbot Setup, Renewal, Limits
• Wildcard Certificate from Let's Encrypt via DNS-01

Reverse proxy, mail, migrations and monitoring.

• MX Record Setup for Your Own Mail Server (Postfix)
• Reverse DNS PTR Record: Set It at Your Host, Not Registrar
• Reverse Proxy for Multiple Domains: nginx, Caddy, Traefik
• Server Migration Without Downtime: TTL, rsync, Proxy

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