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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 [email protected] to c/[email protected]

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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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[–] [email protected] 16 points 9 months ago* (last edited 9 months ago) (15 children)

Only remote access by wireguard and ssh on non standard port with key based access.

Fail2ban bans after 1 attempt for a year. Tweaked the logs to ban on more strict patterns

Logs are encrypted and mailed off site daily

System updates over tor connecting to onion repos.

Nginx only has one exposed port 443 that is accessible by wireguard or lan. Certs are signed by letsencrypt. Paths are ip white listed to various lan or wireguard ips.

Only allow one program with sudo access requiring a password. Every other privelaged action requires switching to root user.

I dont allow devices I dont admin on the network so they go on their own subnet. This is guests phones and their windows laptops.

Linux only on the main network.

I also make sure to backup often.

[–] [email protected] 5 points 9 months ago (3 children)

Linux only on the main network.

Is that a security benefit?

[–] [email protected] 8 points 9 months ago

If big corporations hoovering your data should be on everyone's threat list, then yea, i'd say its a huge benefit.

[–] [email protected] 5 points 9 months ago* (last edited 9 months ago)

Well I dont trust closed source software and do what I can to avoid it when I can. At least foss can be audited. Also all the linux devices on the main network are devices I admin.

[–] [email protected] 5 points 9 months ago

I guess it cuts the attack surface profile down a bit?

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