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submitted 11 months ago by wasabi@feddit.de to c/selfhosted@lemmy.world

I'm new to the container world. Does it have any security benefits when I run my applications as a non-root user in a docker container? And how about Podman? There I'll run the container as an unprivileged user anyway. Would changing the user in the container achieve anything?

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[-] loudwhisper@infosec.pub 2 points 11 months ago

I have seen this post and decided to respond via a separate blog post. https://loudwhisper.me/blog/containers-isolation/

The short answer is that yes, they do. And yes lowering the privileges of the user helps in avoiding container escapes, which basically makes the other advantages for containers valid. You can, however, achieve the same using (relatively obscure, imho) systemd settings, running with flatpak etc. Namespaces + Cgroups + Seccomp + Capabilities = better security. Containers make it easy to use all of the above.

this post was submitted on 10 Nov 2023
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