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Guides for people who run their own servers.
Straight-talking tutorials and comparisons on VPS hosting, game servers, Linux and security. No fluff, just what actually works. 346 guides from the team that runs the servers.
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6 guides for “certificates” in Domains · Clear search
How to Create a Staging Subdomain for Your Site
Test changes safely on staging.yourdomain.com before they hit production. Here's the DNS, the web-server config, the SSL, and how to keep bots and Google out.

How to Set Up a CAA Record for Your Domain
A CAA record tells certificate authorities which of them are allowed to issue SSL certs for your domain — a simple, powerful guard against mis-issuance.

How to Set Up a Wildcard Subdomain on a VPS
A wildcard subdomain catches every subdomain at once — ideal for multi-tenant apps and dynamic subdomains. Here's the DNS record, the wildcard SSL cert, and the Nginx config.
Wildcard DNS and catch-all subdomains explained
One record to handle every subdomain? That's a wildcard. Here's how *.example.com works, when to use it, and the pitfalls to avoid.
Subdomains explained: what they are and how to use them
blog.example.com, app.example.com, shop.example.com — subdomains let one domain host many things. Here's how they work and when to use one.
DNS records explained: A, AAAA, CNAME, MX and TXT
Every domain runs on a handful of record types. Here's what each one does, with real examples, so you can read and edit DNS with confidence.
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