Hey everyone,
I just wanted to highlight a simple yet often overlooked security tool.
The tool I’m referring to is fail2ban. It’s a lightweight but effective script that helps protect servers by automatically creating iptables rules to block repeated failed login attempts.
There’s some debate about whether it’s necessary, with the main argument being that proper SSH key hygiene—such as avoiding passwords on public servers and keeping private keys secure—reduces the need for it.
That said, mistakes can happen, and adding an extra layer of security never hurts. It’s a simple way to add some peace of mind and additional protection against brute-force attacks.
