Hardening

Proxmox VE is an incredible virtualization platform, but a fresh install needs hardening before it’s production-ready. This guide covers everything from basic configuration to advanced security controls. Prerequisites Proxmox VE 8.x installed on bare metal Physical access or IPMI/iKVM for recovery Basic Linux command line familiarity 1. Repository Configuration Disable Enterprise Repositories By default, Proxmox uses enterprise repositories that require a subscription. For homelab use, switch to the community repositories: ...

Hardening the Lab: Proxmox & LXC Edition Running a homelab is the best way to learn, but it also increases your local attack surface. If you’re running Proxmox VE, you’re sitting on a powerful hypervisor that needs more than just a strong password. 1. Disable the Enterprise Repository Unless you’re paying for a subscription, the enterprise repo will give you persistent errors. Switch to the no-subscription repository to keep your system updated. ...