Setting Up NUT

Install the packages:

sudo apt update
sudo apt install nut nut-client nut-server apache2 nut-cgi nut-snmp

Edit /etc/nut/ups.conf and add your UPS

sudo vi /etc/nut/ups.conf

Add the below stanza to the bottom:

[servers]
driver = usbhid-ups
port = auto
desc = "BamBu Printers UPS"

Edit the bottom of the /etc/nut/upsmon.conf:

sudo vi /etc/nut/upsmon.conf

Add your line to the bottom:

# MONITOR <system> <powervalue> <user> <password> ("master"|"slave")
MONITOR servers@localhost 1 monuser secret master

Add the same user to /etc/nut/upsd.users

sudo vi /etc/nut/upsd.users

add the below to the bottom:

[monuser]
   password = secret
   upsmon master

Edit /etc/nut/nut.conf and change the last line:

sudo vi /etc/nut/nut.conf

Add the below to the end:

MODE=netserver

Test:

sudo reboot

Check:

upsc servers@localhost

Edit /etc/nut/hosts.conf to allow CGI scrips access to the monitor. Add one line to the bottom of the file:

sudo vi /etc/nut/hosts.conf

MONITOR servers@localhost "Server UPS"

Enable CGI in apache and restart the web server:

sudo a2enmod cgi

sudo systemctl restart apache2

Now, you just need to convince apache that you really, really want to turn on CGI by uncommenting the following in /etc/nut/upsset.conf:

sudo vi /etc/nut/upsset.conf

### I_HAVE_SECURED_MY_CGI_DIRECTORY