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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.

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1 of 45 tutorials in Security tested on Debian 12 Oldstable

  1. How to get a Let's Encrypt wildcard certificate with the DNS challenge

    Get a free *.example.com certificate from Let's Encrypt with certbot or acme.sh and your DNS provider's API, renew it automatically and reload your web server.

    intermediate · 25 min · Ubuntu 24.04 LTS, Debian 12 Oldstable

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