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Asked: 2024-09-26T15:04:21+05:30 In:

How can I configure a Synology NAS to function as a Network UPS Tools (NUT) server for an Ubuntu Server 20.04 setup?

I’m diving into setting up a Synology NAS, and I want to turn it into a Network UPS Tools (NUT) server for my Ubuntu Server 20.04 system. I’ve read a bit about NUT and how it can help manage UPS devices over the network, but I’m a bit lost on how to actually make it all work together.

Here’s what I’ve got so far: I have a Synology NAS that I’d like to use not just for file backups but also as a UPS server. The idea is to configure it so that my Ubuntu Server can communicate with it to manage power events and prevent any abrupt shutdowns during an outage. I think this could be a great way to centralize my power management, but I’m not really sure where to start.

I’ve seen mentions of installing the NUT package on the Synology and then configuring it to run with a connected UPS, but what does that process look like in detail? Do I need to use the Synology package center, or is there a way to get it running with command-line tools? Also, I stumbled upon some guides, but they seem to vary a lot depending on the specific NAS model and the version of DSM, which makes it hard to pin down a straightforward approach.

Then once I have the NAS set up as the NUT server, what do I need to do on the Ubuntu side? I’ve found some resources suggesting I install the NUT client packages, but I’m unsure about the exact configuration files I should edit and what information I need to include, like specifying the server and any required options.

If anyone has gone through this process, could you share the steps you took or any tips that might save me some headaches? I’m eager to get this project running smoothly, so any advice on the configuration, troubleshooting common problems, or even things to watch out for would be super helpful. Thanks!

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    1. Setting Up NUT on Synology NAS with Ubuntu Server

      Getting Started with NUT on Synology NAS

      Sounds like you’re diving into an interesting project! Setting up NUT (Network UPS Tools) can be a little tricky, but I’ll do my best to break it down for you.

      Step 1: Install NUT on Synology NAS

      First, you need to get NUT installed on your Synology NAS. You have two main ways to do this:

      • Using Package Center: If your NAS supports it, check the Package Center for NUT. Simply install it from there.
      • Using Command-Line: If you’re comfortable with SSH, you can log into your NAS and install it using command-line tools. You typically would use ipkg or opkg if you have those installed.

      Once installed, you’ll need to configure it for your specific UPS model. This usually means editing a file like /etc/nut/ups.conf to set up your UPS parameters.

      Step 2: Configure NUT on Synology

      After installing, you’ll want to configure NUT. Here’s a mini checklist:

      1. Edit /etc/nut/ups.conf with your UPS details.
      2. Edit /etc/nut/upsd.conf to allow your Ubuntu server to communicate with the NAS.
      3. Edit /etc/nut/upsd.users to set user permissions.
      4. Start the NUT service with sudo service nut start.

      Step 3: Set Up Ubuntu Server

      Now that your NAS is running NUT, you’ll need to configure your Ubuntu server:

      1. Install the NUT client packages using

        2. sudo apt install nut-client

      2. Edit /etc/nut/nut.conf to set the mode to client.
      3. Update /etc/nut/upsmon.conf, pointing it to your NAS (e.g., MONITOR your-ups-name@your-nas-ip username password master).
      4. Finally, restart the NUT service on Ubuntu: sudo systemctl restart nut-monitor.

      Troubleshooting Tips

      If things don’t work right away:

      • Check logs in /var/log/syslog or wherever your NUT logs are set up.
      • Make sure your firewall isn’t blocking the communication between your NAS and Ubuntu.
      • Verify the IP addresses and usernames in config files—typos happen!

      Things to Watch Out For

      Every NAS model and DSM version can be a bit different, so don’t hesitate to consult the Synology forums or NUT documentation specific to your hardware.

      Good luck with your setup! It can be a bit of a puzzle, but once you get it all working, you’ll be happy you did it.



    2. To set up your Synology NAS as a Network UPS Tools (NUT) server for your Ubuntu Server, first ensure that your NAS supports the installation of NUT. You can either use the Synology Package Center to install NUT directly or opt for command-line tools, depending on your familiarity with SSH. If using the Package Center, simply search for NUT or check if it’s available in third-party repositories. After installation, you will need to connect your UPS to the NAS via USB or serial connection. Once connected, configure NUT through the configuration files located at `/etc/ups/` where you’ll typically find files like `nut.conf`, `ups.conf`, and `upsd.conf`. The key file to edit is `ups.conf`, where you’ll define your UPS device and its driver settings. Make sure to also adjust permissions for the NUT services to allow your Ubuntu server to communicate with the NAS over the network by enabling appropriate firewall settings and ensuring the NUT service is running using commands like `sudo systemctl start nut-server`.

      On your Ubuntu Server, you’ll need to install the NUT client using the command `sudo apt install nut

      `. Once installed, you can configure it to recognize your NAS as the NUT server. This is done by editing the `nut.conf` file to specify the mode (usually “netserver”) and the `upsmon.conf` for defining the monitoring settings for your UPS. In `upsmon.conf`, include the line `MONITOR @ slave`, replacing ``, ``, ``, and `` with the actual details corresponding to your NUT setup. Finally, ensure the NUT service is enabled and running on your Ubuntu Server with `sudo systemctl enable nut-monitor` and `sudo systemctl start nut-monitor`. This will allow your Ubuntu system to properly respond to power events triggered by the UPS connected to your Synology NAS, ensuring graceful shutdowns and preventing data loss during outages.


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