NUTUPSMonitor

1. Install network ups tool;

# yum install nut nut-client

2. Change mode from none -> standalone in /etc/ups/nut.conf

#MODE = none
MODE = standalone

3. Add a UPS device in /etc/ups/ups.conf;

• Use auto for port if USB

[drewups]
        driver=usbhid-ups
        port = auto
        desc = "Office UPS"

4. Create a master to use to communicate with nut in /etc/ups/upsd.users;

[amasteruser]
       password = anawesomepassword
       upsmon master

5. Create a user on the system to monitor;

# useradd -s /sbin/nologin -g nut nutmon

Configure /etc/ups/upsmon.conf to monitor drewups as amasteruser, run a script when an action occurs, as well as alert;

[root@drewserv ~]# grep -v ^$ /etc/ups/upsmon.conf | grep -v ^#
MINSUPPLIES 1
SHUTDOWNCMD "/sbin/shutdown -h +0"
POLLFREQ 5
POLLFREQALERT 5
HOSTSYNC 15
DEADTIME 15
POWERDOWNFLAG /etc/killpower
RBWARNTIME 43200
NOCOMMWARNTIME 300
FINALDELAY 5
RUN_AS_USER nutmon
MONITOR drewups 1 drew mypassword master
NOTIFYCMD /mnt/raid5/drew/backup/cron/upspager.sh
NOTIFYFLAG ONLINE       SYSLOG+EXEC+WALL
NOTIFYFLAG ONBATT       SYSLOG+EXEC+WALL
NOTIFYFLAG LOWBATT      SYSLOG+EXEC+WALL
NOTIFYFLAG FSD          SYSLOG+EXEC+WALL
NOTIFYFLAG COMMOK       SYSLOG+EXEC+WALL
NOTIFYFLAG COMMBAD      SYSLOG+EXEC+WALL
NOTIFYFLAG SHUTDOWN     SYSLOG+EXEC+WALL
NOTIFYFLAG REPLBATT     SYSLOG+EXEC+WALL
NOTIFYFLAG NOCOMM       SYSLOG+EXEC+WALL
NOTIFYFLAG NOPARENT     SYSLOG+EXEC+WALL

6. upspager.sh script;

#!/bin/bash
echo "$*" | mail -s "drewups alert" [email protected]

7. Start nut at boot and fire it up;

# chkconfig ups on
# /etc/init.d/ups start