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Linux server tutorials
Step-by-step tutorials for a Linux server: VPNs, web servers, databases, containers, security and backups. Each one names the distributions it was tested on.
2 of 45 tutorials in Networking and VPN tested on Debian 13 Stable
How to point a domain at your VPS (A and AAAA records)
Point your domain at your server with A and AAAA records, add www, pick a sensible TTL, and check with dig that the change has really taken effect.
How to send email from a VPS through an SMTP relay
Send your server's mail (alerts, cron output, app email) through an SMTP relay on port 587 with Postfix, so it's delivered without running a full mail server.