Hardening

The Complete Self-Hosting Security Stack: Fail2Ban + CrowdSec + Authelia Running self-hosted services on the open internet without a security stack is like leaving your front door unlocked in a busy neighborhood. Individual tools help, but real protection comes from layering defenses so each one covers the gaps of the others. This guide builds a complete security stack using three open-source tools: Fail2Ban — reactive log-based banning for brute-force attacks CrowdSec — community-powered threat intelligence and behavioral detection Authelia — authentication portal with single sign-on and multi-factor authentication Together, they give you intrusion prevention, shared threat intelligence, and access control. All running in Docker, all free. ...

The Complete Self-Hosting Security Stack: Fail2Ban + CrowdSec + Authelia Running self-hosted services is great — until someone else discovers them. The moment you expose a port to the internet, bots start probing. Brute-force SSH attempts, credential stuffing on web apps, vulnerability scanners — it never stops. No single tool solves this. You need layers. This guide walks through building a complete security stack using three open-source tools that complement each other perfectly: ...

Linux Server Hardening Checklist for Self-Hosters You spun up a server, installed Docker, and deployed a dozen services. Everything works. But your SSH port is open to the world with password auth, you’re running everything as root, and your firewall is… what firewall? Most self-hosting guides skip security entirely. This one doesn’t. Here’s a practical, ordered checklist to harden your Linux server without breaking the services running on it. Who This Is For Anyone running a self-hosted server — whether it’s a Raspberry Pi on your desk, a mini PC in the closet, or a VPS at Hetzner. You don’t need to be a sysadmin. You just need a terminal and 30 minutes. ...