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If Nothing is Exposed, Am I Safe? (lemmy.dbzer0.com)

submitted 1 week ago* (last edited 1 week ago) by No_Bark@lemmy.dbzer0.com to c/selfhosted@lemmy.world

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Hello most excellent Selfhosted community,

I'm very new to this and am confused about how vulnerable my server and/or home network is with my current setup.

I just got a basic server up and running on a machine with proxmox and a DAS for 10tb of storage. I've got two LXCs running for a docker deployed arr stack and jellyfin+jellyseer stack. The proxmox server is connected to a router attached to a fiber ONT. Everything is accessed over the home LAN network and that's it.

Everything is working correctly and my containers are all talking to each other correctly via ip addresses (gluetun network on the arr stack container). I've been reading up on reverse proxies and tailscale to connect to the server from outside my LAN network, and it's mostly gone over my head, but it did make me concerned about my network security.

Is my current set up secure, assuming strong passwords were used for everything? I think it is for my current uses - but I could use a sanity check, I'm tired. I'm open to any suggestions or advice.

I own a domain that I don't use for anything, so it would be cool to get reverse proxy working, but my attempts so far have failed and I learned I'm behind a double NAT (ONT and router) - and attempts to bypass that by setting the ONT into bridge mode have also failed. I don't really need to access anything from outside my home network right now - but I would like to in the future.

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[–] Onomatopoeia@lemmy.cafe 3 points 1 week ago* (last edited 1 week ago)

The proxmox server is connected to a router attached to a fiber ONT.

If you want to be extra secure, there's no reason the server needs internet connectivity/exposure at all (it should be safe as-is). Put it on its own VLAN with only specified ports open to your home LAN. That would be one extra layer from the internet - if admin/remote ports can't be accessed via the internet connection LAN, then no way for an outsider to get into it (you'd have to provide other ways of accessing the server to admin it, either KVM, or a machine on that VLAN, etc).

You DO NOT need to do this, just adding an idea about how to make stuff more secure.