The Nxeon Blog

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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44 guides for “authentication” · Clear search
Networking · 6 min read ·

How to Diagnose DNS Problems with dig and nslookup

When a domain won't resolve, dig and nslookup tell you exactly why. A practical, example-driven guide to reading their output and finding the real problem.

Email · 6 min read ·

How to Verify Your Domain for Email Sending

Before a service like SendGrid, Mailgun or Google can send as your domain, you must verify it in DNS. Here's what each record does and how to get verified fast.

Email · 5 min read ·

How to Set Up a Catch-All Email Address

A catch-all captures mail sent to any address at your domain — even ones that don't exist. Here's how to set one up, the real risks, and smarter alternatives.

Email · 6 min read ·

How to Forward Custom Domain Email to Gmail

Read mail sent to you@yourdomain.com right in your normal Gmail inbox — and even reply as your domain. The simplest way to look professional without a new inbox.

Email · 5 min read ·

How to Set Up MX Records for Google Workspace

The exact MX record to add so Google Workspace receives mail for your domain, plus the SPF and DKIM records that keep your sending out of spam.

Email · 6 min read ·

How to Set Up Business Email on a Custom Domain

Get professional you@yourdomain.com email working, whatever your options — managed provider or self-hosted. The DNS records, the trade-offs, and the setup path.

Email · 6 min read ·

How to Stop Your Emails Going to Spam

A practical checklist for getting your email out of the spam folder — authentication, reputation, content and infrastructure — with the exact fixes that move the needle.

Domains · 6 min read ·

How to Enable DNSSEC on Your Domain

DNSSEC cryptographically signs your DNS so answers can't be forged. Here's what it protects against and exactly how to turn it on at your registrar.

Security · 5 min read ·

How to Self-Host a Password Manager on a VPS

Which self-hosted password manager should you run, and how? Compare Vaultwarden, KeePass sync and Passbolt, then deploy your pick on a VPS with HTTPS.

Tutorials · 5 min read ·

How to Self-Host FreshRSS on a VPS

Take back control of your reading with a self-hosted RSS reader. Install FreshRSS on a VPS with Docker and sync it to your favourite mobile app.

Tutorials · 4 min read ·

How to Self-Host Home Assistant on a VPS

Home Assistant on a VPS gives you a cloud dashboard and secure remote access to your smart home. Here's how to install it with Docker — and what it can't do.

Security · 5 min read ·

How to Self-Host Vaultwarden (Bitwarden-Compatible) on a VPS

Run your own password vault with Vaultwarden, a lightweight server that works with every official Bitwarden app. Docker install with HTTPS in minutes.

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