Enabling Proxmox Firewall Rules for VMs

Sun, 26 Apr 2026 20:14:30 -0400

Intro

In my homelab I’ve been tediously managing firewall rules using ufw, iptables, and fail2ban. While this works well, I believe it’s overly complicated for my setup. This led me down the rabbit hole of how to implement firewall rules in Proxmox.

Proxmox’s firewall is extremely competent, but it can be tricky as well.

One thing I learned about Proxmox is that you need to make sure the firewall is enabled in multiple places. You have several layers of firewalling, one for the hosts, one for the VMs, and one for services running in VNETs. These firewall rules are backed by either iptables or the more modern nftables in the case of VNETs.

Relocating My Homelab

Sat, 05 Apr 2025 17:15:21 -0400

Hey all,

I recently decided to purchase a dedicated server from RackNerd with the goal of hosting my homelab services remotely.

Previously, I ran a high-availability Proxmox cluster out of my one-bedroom apartment in NYC, powered by a few Dell Optiplex 4090s. A few months ago, I moved into a new place and had to decommission that setup.

Since my new setup is remote, it presented a few challenges:
How am I going to administer my lab? How can I secure it? What services will I host?

Firewall on wgz.sh

Enabling Proxmox Firewall Rules for VMs

Intro

Relocating My Homelab