PRE-INSTALL
- Need to create a group and user for ups monitoring. (user,group:nut)
- Add support for USB at kernel:

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Device Drivers  ---> 
  USB support  ---> 
    [*] Support for Host-side USB 
    [?] EHCI HCD (USB 2.0) support 
    [?] OHCI HCD support 
    [?] UHCI HCD (most Intel and VIA) support 
    [*] USB Human Interface Device (full HID) support 
      [*]   /dev/hiddev raw HID device support 
########################################################

POST-INSTALL
- Remember to change perms in config files:
chown root:nut upsd.conf upsd.users
chmod 0640 upsd.conf upsd.users

- Remember to use man to setup nut.