this post was submitted on 29 Nov 2023
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How to confirm home server security (alien.top)
submitted 11 months ago by zubitti@alien.top to c/main@selfhosted.forum
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Is there a way to confirm that my home server's security is sufficient for most common attacks?

Externally, I only have the ports 80, 443 (Nginx-Proxy-Manager) and 51829 (Wireguard VPN) enabled on the router.

I have a Rpi4 and a mini PC connected to the router via ethernet cable. And I am using NPM for reverse proxy. Also enabled SSL for local DNS so I don't have to keep typing the IP addresses for each server.

All my apps are docker containers and they all use network_mode: bridge.

And finally, I have only two services open to internet. The media server and the Wireguard VPN. Got the free DuckDNS domains and configured in the NPM.

I haven't done any specific firewalls. Just using default Debian 12 settings and default Docker engine settings.

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[–] Anycast@alien.top 1 points 11 months ago

Minor security through obscurity thing you could implement: buy you own domain through cloudflare for ~$10/year. Use their proxy so that your public IP doesn’t resolve to your home public IP like it does now with DuckDNS. If you want to get fancy, you can also use their API with fail2ban to block connections after a predefined number of login failures.