• nut

Install packages

Depending on your NUT deployment plan, you will likely need to install the nut metapackage, which will install the nut-client and nut-server packages.

• A nut user, whose home is /var/lib/nut, is created by the Debian package.

• Configuration is mostly done in /etc/nut.

• Services will require prior configuration: nut-{client,driver,server,monitor}

Configuration

Read /etc/nut/nut.conf, and specify how you plan to use NUT:

MODE=standalone

Find out the USB ID of your UPS:

$ lsusb

Describe your UPS in /etc/nut/ups.conf:

maxretry = 3

[eaton650]
        driver = usbhid-ups
        port = auto
        vendorid = 0463

Restart nut-server service.

$ sudo service nut-server restart

Check the UPS

You should now be able to communicate with the UPS.

Which commands are recognized by the UPS? (Replace eaton650 by its name from ups.conf.)

$ upscmd -l eaton650

What data it has?

$ upsc eaton650

Create a user access to upsd

Edit /etc/nut/upsd.users, it should contain something like:

[admin]
        password = some_complex_password
        actions = SET
        instcmds = ALL
        upsmon master

Restart nut-server:

$ sudo service nut-server restart

Your user access has been set up!

Monitor locally with upsmon

upsd should already be listening on localhost, which means you can monitor it locally.

Edit /etc/nut/upsmon.conf, ensure it has a MONITOR line describing how it can access upsd.

...
MONITOR eaton650@localhost 1 admin some_complex_password master
...

Restart nut-monitor:

$ sudo service nut-server restart

Ensure it doesn't complain:

$ sudo service nut-server status

Your UPS should be monitored and working!

To be continued...

• In upsd.conf, you can ask the server to listen to other network interfaces, for other hosts (i.e: on your local area network) to access the UPS data.
• You can set up SSL certificates and enable secure communications.
• Customize to your needs.

CategoryHardware | CategorySystemAdministration