Fail2ban

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. ...

How to Set Up Fail2ban: Protect Your Server from Brute-Force Attacks If you expose your home server to the internet, automated attacks will find it. Within minutes of opening SSH or a web service, bots start hammering your server with login attempts. Fail2ban is your automated security guard. It monitors logs for suspicious activity (repeated failed logins, exploit attempts) and automatically bans offending IP addresses via firewall rules. In this guide, you’ll learn to install and configure Fail2ban to protect SSH, web services, and more. ...