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What are the most paranoid network/OS security measures you've implemented in your homelab? (self.selfhosted)

submitted 10 months ago by MigratingtoLemmy to c/selfhosted

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As the title says, I want to know the most paranoid security measures you've implemented in your homelab. I can think of SDN solutions with firewalls covering every interface, ACLs, locked-down/hardened OSes etc but not much beyond that. I'm wondering how deep this paranoia can go (and maybe even go down my own route too!).

Thanks!

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[–] MigratingtoLemmy 2 points 10 months ago (1 children)

Would you have to compromise on your security according to your threat model if you ran VMs rather than dedicated devices? I'm no security engineer and I don't know if KVM/QEMU can fit everyones needs, but AWS uses XCP-ng, and unless they're using a custom version of it, all changes are pushed upstream. I'd definitely trust AWS' underlying virtualisation layer for my VMs, but I wonder if I should go with XCP or KVM or bhyve.

This is my personal opinion, but podman's networking seems less difficult to understand than Docker. Docker was a pain the first time I was reading about the networking in it.

Really like your setup. Do you have any plans to make it more private/secure?

[–] easeKItMAn 0 points 10 months ago* (last edited 10 months ago)

I used VMs some time ago but never managed to look deeper into separation of bare metal vs VMs. Hence I can’t assess this reasonably.
Docker got me interested when it started and after discovering its networking capabilities I never looked back.
Basically I’m trying to minimize the possibility that by intercepting one dockerized service the attacker is able to start interacting with all devices. And I have lots of devices because of a fully automated house. ;) My paranoia will ensure the constant growth of privacy and security :)