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A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don't control.

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Self hosting on desktop: how to secure self hosted apps from proprietary desktop apps? (reddthat.com)

submitted 2 years ago by [email protected] to c/[email protected]

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Hello friends, I am considering self hosting on my desktop computer, which already has gentoo Linux installed. But my concern is that my regular desktop use could compromise the security of self hosted applications, which tend to handle private user data.

What can I do to secure myself against this threat?

For example, browsers on their own are a security nightmare. You are running arbitrary remote scripts, and there's no telling the extent of damage they do (most websites out there doing extensive tracking).

What can I do to secure my self hosted applications while running them on the same machine? Is there something I can do to somehow isolate browsers and other sketchy applications from the damage they could possibly do?

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[–] Aceofspades 1 points 2 years ago

You could run your self hosted services in a VM. The rest of your system can't access that so it's about as secure as it gets. That's kind of what VMs are really good at. The downside is that are pretty much running another operating system inside your operating system so you need the RAM and CPU to support it. If you are running Gnome on that Gentoo box then look at Gnome Boxes.

[–] [email protected] 0 points 2 years ago* (last edited 2 years ago)

Maybe just don't run your services under your regular user account?

Create one or more new user accounts and run them that way. Make sure not to give your regular user account any access to the data in the new accounts.

That doesn't stop all attacks: side-channel attacks (Spectre?) can still happen, and your machine can for example still run out of memory and break your services that way, but it's a solid start.