What port does Proxmox use?

Proxmox VE's web management interface runs on port 8006 over HTTPS. Access it at https://[server-ip]:8006. The port is fixed and cannot be changed without modifying the pveproxy service configuration.

Proxmox VE is free and open source under the AGPL license. You can use it without a subscription. A paid subscription ($119-499/year per node) provides access to the enterprise update repository with more thoroughly tested packages. The free community repository is available without a subscription.

What is the difference between a VM and LXC container in Proxmox?

A VM (virtual machine) runs a complete isolated operating system with its own kernel via KVM/QEMU — more overhead but full isolation and any OS support. An LXC container shares the host kernel, uses far less RAM and CPU, and boots in seconds — ideal for Linux-based services. Use VMs for Windows, untrusted workloads, or when you need kernel-level isolation. Use LXC for Linux services like Pi-hole, Home Assistant, or media servers.

Proxmox VE — Home Lab Hypervisor

Proxmox Virtual Environment (Proxmox VE) is a free, open-source bare-metal hypervisor based on Debian Linux. It runs virtual machines (via KVM/QEMU) and Linux containers (LXC) from a single unified web interface. The management UI runs on port 8006 over HTTPS.

Proxmox Web UI:https://[server-ip]:8006

Default login: root / [root password set during install] · Realm: Linux PAM standard authentication

Installation

Download the Proxmox VE ISO from proxmox.com/downloads
Flash to USB with Balena Etcher or Rufus
Boot from USB on your server hardware (old PC, mini PC, NUC, or dedicated server)
The installer sets up Debian + Proxmox VE automatically
Set a static IP, hostname, DNS, and root password during install
After install: browse to https://[ip]:8006 — accept the self-signed certificate warning

Dismiss the Subscription Nag (Free Usage)

Proxmox shows a "No valid subscription" popup on every login for non-subscribers. To remove it for home use:

# SSH into Proxmox host, then:
sed -i.bak "s/data.status !== 'Active'/false/g" \
  /usr/share/javascript/proxmox-widget-toolkit/proxmoxlib.js
# Restart the web service
systemctl restart pveproxy
# The popup is gone until next Proxmox update (re-run after updates)

Switch to Free Community Repository

# Remove enterprise repo (requires subscription)
rm /etc/apt/sources.list.d/pve-enterprise.list

# Add free community repo
echo "deb http://download.proxmox.com/debian/pve bookworm pve-no-subscription" \
  > /etc/apt/sources.list.d/pve-community.list

# Update
apt update && apt dist-upgrade

VM vs LXC Container

Feature	KVM VM	LXC Container
OS support	Any (Windows, Linux, BSD)	Linux only
RAM overhead	High (full kernel)	Low (shared kernel)
Boot time	30–60 seconds	1–3 seconds
Isolation	Complete (separate kernel)	Process-level
Storage efficiency	Lower	Higher
Use case	Windows, untrusted workloads, full isolation needed	Linux services: Pi-hole, HA, media servers

Create an LXC Container (Common for Home Lab Services)

Datacenter → your node → Create CT (top right)
Set hostname, password, and SSH key
Template: click the download icon to get Ubuntu, Debian, Alpine, etc. from the Proxmox template library
Storage: assign disk size (4–20 GB is typical for services)
CPU: 1–2 cores for most services
Memory: 512 MB–2 GB depending on the service
Network: DHCP for easy setup, or static IP
Confirm and Start after creation

Proxmox Storage

Storage Type	Best For	Notes
local-lvm (default)	VM disks, LXC containers	LVM thin-provisioned, efficient
dir (local)	ISOs, backups, templates	Files on filesystem, shareable
ZFS	NAS, data integrity	Snapshots, RAID, checksumming
NFS/SMB	Shared storage from NAS	Mount a NAS share as Proxmox storage
Ceph	Clustered, high-availability	Multi-node clusters, distributed storage

Backup and Snapshot

Proxmox supports VM/container backups and snapshots from the web UI. Backups dump a complete VM/container archive to storage. Snapshots capture the current state and can be reverted instantly — useful before risky updates.

Schedule automated backups: Datacenter → Backup → Add schedule. Select which VMs/containers to include, destination storage, and time. Backups run in the background and can be sent to a NFS share or external storage.

Troubleshooting

Cannot reach :8006 after install: The server may still be booting. Check for IP assignment — run ip addr on the Proxmox console. If IP is correct, check: systemctl status pveproxy. Your browser may also block self-signed certificates — proceed through the security warning.

No internet in LXC container: DNS and gateway may not be set. In the container's network settings, verify the gateway IP and DNS are populated. Also check if the host's network bridge (vmbr0) is correctly configured — Datacenter → your node → Network.