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

submitted 9 months ago by MigratingtoLemmy@lemmy.world to c/selfhosted@lemmy.world

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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@lemmy.world 2 points 9 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@lemmy.world 0 points 9 months ago* (last edited 9 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 :)