First, do this as [http://wiki.amahi.org/index.php/Open_Terminal_as_root root user]:

Next, you will need to configure four files in /etc/ups: ups.conf, upsd.users, hosts.conf, and upsmon.conf. They will look almost identical to Selinger's (password1 and password2 can be changed to anything):

[apc]

driver = usbhid-ups

port = auto

desc = "APC Back-UPS"

vi /etc/ups/upsd.users

[admin]

password = password1

password = password2

upsmon master

MONITOR apc@localhost "UPS on HDA"

MONITOR apc@localhost 1 monuser password2 master

MINSUPPLIES 1

NOCOMMWARNTIME 300

FINALDELAY 5

The next step is to start the UPS service:

At this point, you should see something like this in your terminal:

If you do not, it may be because upsdrvctl refuses to cooperate at first. A reboot will fix that problem. The final step is to make sure that the UPS services start when the server does. For that, the /etc/rc.local file must be edited as follows:

echo "Starting UPS driver, daemon, and monitor."

/sbin/upsdrvctl start

/usr/sbin/upsd

/usr/sbin/upsmon