this post was submitted on 04 Apr 2025
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XCP-NG vs PROXMOX security hardening? (lemmy.dbzer0.com)
submitted 2 weeks ago* (last edited 2 weeks ago) by marauding_gibberish142@lemmy.dbzer0.com to c/selfhosted@lemmy.world
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It's been a while since I visited this topic, but a few years back, Xen (and by extension XCP-NG) was better known for security whilst KVM (and thus Proxmox) was considered for better performance (yes, I've heard of the rumours of AWS moving to KVM from Xen for some appliances).

I would like to ask the community about the security measures you've taken to harden the default PROXMOX and XCP-NG installations. Have you run the CIS benchmarks and performed hardening that way? Did you enable 2FA?

I'm also interested in people who run either of these in production: what steps did you take? Did you patch the Debian base (for PVE)/Fedora base (I think, for XCP)?

Thank you for responding!

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[–] moonpiedumplings@programming.dev 1 points 2 weeks ago* (last edited 2 weeks ago) (1 children)

Which means my distro-morphing idea should work in theory with OpenStack

I also don't recommend doing a manual install though, as it's extremely complex compared to automated deployment solutions like kolla-ansible (openstack in docker containers), openstack-ansible (host os/lxc containers), or openstack-helm/genestack/atmosphere (openstack on kubernetes). They make the install much more simpler and less time consuming, while still being intensely configurable.

[–] marauding_gibberish142@lemmy.dbzer0.com 1 points 2 weeks ago (1 children)

I see. But does the installation cover hardening steps like hardened_malloc, permission hardener, kernel self-protection etc?

[–] moonpiedumplings@programming.dev 1 points 2 weeks ago (1 children)

I don't think so, now. You'll have to do those yourself.