Hey everyone,

I’m looking for some insights to confirm if my home server’s security is up to par against common cyber threats. Here’s a brief rundown of my setup:

  1. External Ports: I’ve limited external access to only three ports:

    • Port 80 and 443 for Nginx-Proxy-Manager
    • Port 51829 for Wireguard VPN

  2. Hardware:

    • I’m running a Raspberry Pi 4 and a Mini PC.
    • Both are connected to the router via Ethernet.

  3. Network:

    • NPM is set up for reverse proxy.
    • SSL is enabled for local DNS - to avoid memorizing IP addresses.

  4. Docker:

    • All applications are containerized and use network_mode: bridge.

  5. Internet-Facing Services:

    • Only two services are exposed to the internet:
      • A media server
      • The Wireguard VPN
    • I’m using free DuckDNS domains, configured with NPM.

  6. Firewall:

    • Currently, I’m relying on the default settings of Debian 12 and the Docker engine.
    • I haven’t set up any specific firewall rules.

Given this setup, do you think my security measures are sufficient? I’m particularly curious about the risks associated with my Docker containers and the exposed ports. Any recommendations or best practices you could share would be greatly appreciated!

Thanks in advance for your help!

  • MikeliusEnglish
    1·
    10 months ago

    The only port you should have exposed there, in my opinion, is the wireguard port. Exposing the other ports for your media server increases the chances of a potential compromise. Keep the proxy listening only to the internal network and access it when connected to your vpn. If you must absolutely have something other than the VPN port forwarded, only allow it for specific hosts, not the entire world. Even the most up to date software can have zero days that bad actors are currently exploiting that no one else knows about.