UPS Tools (Network UPS Tools) Setup Guide#

This guide covers the installation of a NUT Server on a central VM (230) and the configuration of NUT Clients (Proxmox nodes) to ensure graceful shutdowns across your infrastructure.

1. NUT Server Installation (VM 230)#

1.1. Prerequisites & Software#

# Verify USB visibility (Ensure USB passthrough is configured in Proxmox)
lsusb

# Install NUT suite
apt update && apt install nut nut-client nut-server -y

1.2. Ubuntu 24.04 (NUT 2.8.1) Library Fix#

If USB scanning fails on Ubuntu 24.04, create the following symlinks:

Wake-on-LAN (WOL) Configuration & Inventory#

This guide covers how to enable, persist, and verify Wake-on-LAN (WOL) across Linux nodes and Proxmox hosts, followed by a comprehensive MAC address inventory for the local and remote clusters.

1. Verification & Manual Activation#

Check WOL Support#

Use ethtool to check if your network interface supports the “Magic Packet” (designated by the letter g).

# Replace eno5 with your actual interface name
ethtool eno5 | grep Wake-on

Output Interpretation: