I have been running crowdsec on my OpenWRT firewall for a bit now, I am just curious as to what others think about it?
Thank you @irmadlad the webui you suggested is showing the logs a lot better than my vibe coded HA plug ins (both my ssh honey pot and my plug in showed nothing) looking over the logs shows so much activity that is happening.
It’s great! I use it on both my home server and my Hetzner server. It blocks connections based on behaviors defined by scenarios. I configured it to block any connections it decides to block via the firewall.
So far, so good. I don’t even know it’s running. It just does its job of blocking bots.
I believe it is a good start with crowdsec but feels like it gives false protection. The blocking only happens after they have done a couple of attempts and not before.
How would it, or any software for that matter determine a given request is malicious before it does something malicious?
Crowdsec does it by using crowd-sourced blocklists (hence the name). So if an IP triggers a scenario on other machines, that malicious address will be proactively added to your blocklist before it ever gets a chance to impact your machine.
That is the big advantage of crowdsec over reactive-only solutions, like fail2ban.
