Intro This is going to be a two parter: The Web In the first part, we hardened the docker-mailserver installation to aggressively block malicious users along with their immediate /24 vicinity. In this part, I am going to briefly explain crowdsec and its concepts, and how I have integrated it with my Caddy reverse proxy and Cloudflare. What is Crowdsec?…
Month: April 2026
Stopping Malware – Part 1: The Mail Server
Intro This is going to be a two parter: I run my own mail server, something that is generally not recommended, because of the complexity that comes with ensuring security, compliance and “good behaviour,” to avoid having your server end up on spam lists or be vulnerable to attacks and taken over. Not being one to back away from a…