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How do you secure your home lab? (alien.top)

submitted 1 year ago by Ok_Plate_6961@alien.top to c/homelab@selfhosted.forum

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Started off by

Enabling unattended updates
Enable only ssh login with key
Create user with sudo privileges
Disable root login
Enable ufw with necessary ports
Disable ping
Change ssh default port 21 to something else.

Got the ideas from networkchuck

Did this on the proxmox host as well as all VMs.

Any suggestions?

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[–] mss-cyclist@alien.top 1 points 1 year ago (1 children)

Unattended updates can be tricky.

Think of config changes which need manual adjustment, or a broken update. This is something you would probably not like to happen at night without notice. Could easily break your vital systems (e.g. homeassistant, authentication, vaults...)

[–] Daniel15@alien.top 1 points 1 year ago

Use unattended updates ONLY for bug and security fixes, nor for minor or major releases. Ensure you configure your auto-updaters properly!

Debian unattended-upgrades only upgrades packages from the main and security repos by default, so it should be fine since no major updates are performed within a particular Debian version.