Hey all, i’ve decided I should probably setup something else to help block nefarious IP addresses. I’ve been looking into CrowdSec and Fail2Ban but i’m not really sure the best one to use.
My setup is OpnSense -> Nginx Proxy Manager -> Servers. I think I need to setup CrowdSec/Fail2Ban on the Nginx Proxy Manager to filter the access logs, then ideally it would setup the blocks on OpnSense - but i’m not sure that can be done?
Any experience in a setup like this? I’ve found a few guides but some of them seem fairly outdated.
Edit: thanks everybody for the great info. General consensus seems to be with crowdsec so I’ll go down that path and see how it goes.
Awesome that makes a lot of sense, cheers. So I’ll install the Crowdsec agent on the Nginx Proxy Manager, and potentially also on the servers.
No problem. It’s a great piece of software. I have it monitoring logs for nextcloud, vaultwarden, mailcow(postfix & dovecot), basic nginx proxies (just to be safe and for rate limiting). I have 4 OPNsense and 1 Debian bouncers.
I had an issue with so a note about setting up the bouncer on OPNsense. If you have the LAPI on a different machine you can currently only connect OPNsense to it using the command line. The LAPI options in the web interface are for defining the interface to bind to and run the LAPI on OPNsense itself. Which isn’t an issue, I just wanted it on a VM so it’s easier to keep online instead of it going down if the OPNsense it’s on fails. Plus I like to keep SSH disabled on my OPNsense devices and spend a bit of time using cscli on the LAPI VM from time to time.
Cheers, I’ve since discovered that’s is “bouncers” that I want on the endpoints I.e on my Nginx Proxy Manager. I’ll just use the LAPI on the Opnsense box for now I think.