Resources
Security guides for Linux servers
Practical advice on server security, hardening and Linux administration for small business infrastructure.
Featured guides
What a Linux server security review actually covers
What a focused Linux server security review covers — exposure, SSH, firewall, patch posture — and what it deliberately omits before production changes.
Read guideSSH hardening on a Linux server — a practical checklist
A practical checklist to harden SSH on Linux — keys not passwords, no direct root, verify the new config works — without locking yourself out.
Read guideWhen a £150 Linux troubleshooting session is enough (and when it isn't)
When a fixed-price Linux troubleshooting session is the right first step — and when you need a security review, hardening, or ongoing support instead.
Read guideAll guides
Linux server problem? First checks before you call for help
A short checklist for small UK teams when a Linux server is down or misbehaving, from disk space and services to logs, plus when to get outside help.
Read guideCyber Essentials 14-day patching rule for Linux servers
How to meet the Cyber Essentials 14-day patching rule on Linux servers, with apt and dnf commands, automatic updates, kernel reboots and patch evidence.
Read guideDocker and UFW — why published ports ignore your firewall
Why Docker-published ports can bypass UFW on Linux, how to bind containers safely behind a reverse proxy, and when a hardening project is the right fix.
Read guideReverse proxy on a VPS — nginx vs Traefik for one Linux host
When to pick nginx or Traefik as the public front door on a single Linux VPS — TLS, routing, Docker fit — and when a short troubleshooting session is enough.
Read guideWhat ongoing Linux support includes (and excludes)
What monthly Linux support from a freelance practice usually covers — hours, scope, response expectations — and what it deliberately leaves out so you are not surprised.
Read guideNeed hands-on help with your servers?
From security reviews to ongoing support, get practical help from an experienced Linux engineer.