Host hardening
Host hardening
Harden your Proxmox VE host
Even if your Proxmox VE system is just a small homelab for personal use, you have to consider its security posture. The chapters listed next offer procedures to harden different aspects of your Proxmox VE standalone node:
Enable Two-Factor Authentication in your Proxmox VE system both at its shell and web console levels.
1st
Create a non-root sudo-enabled administrator user for handling your daily management tasks on your Proxmox VE system.
2nd
Encrypt the SSH connections with your Proxmox VE server using strong SSH key pairs. Also make your
sshd service’s configuration more secure.3rd
Protect your Proxmox VE server from brute force login attacks with Fail2Ban.
4th
Reduce the services exposed on your Proxmox VE system down to those you really need.
5th
Harden the networking configuration of your Proxmox VE system by applying specific
sysctl configurations.6th
Mitigate the vulnerabilities of your computer’s CPU with an update.
7th
Restrict the in and out network flows from your Proxmox VE server by enabling its integrated firewall.
8th