1- Install Services..
[ashutosh@server ~]# yum install mutt
[ashutosh@server ~]# yum install postfix
2- Create a new script ..
[ashutosh@server ~]# vim /etc/init.d/SystemEmail
________________________________________________________________________
#!/bin/sh
# Send an email on system start/stop to a user.
# Ashutosh
EMAIL="ashutosh.meritnation@gmail.com"
RESTARTSUBJECT="["`hostname`" "`date`"] – System Startup"
SHUTDOWNSUBJECT="["`hostname`" "`date`"] – System Shutdown"
RESTARTBODY="This is an automated message to notify you thatSaet No. NS-23 IP=10.0.3.166 "`hostname`" started successfully. Start up Date and Time: "`date`
SHUTDOWNBODY="This is an automated message to notify you thatSaet No. NS-23 IP=10.0.3.166 "`hostname`" is shutting down. Shutdown Date and Time: "`date`
LOCKFILE=/var/lock/SystemEmail
RETVAL=0
# Source function library.. /lib/lsb/init-functionsstop() {
echo -n "Sending Shutdown Email: "
echo "${SHUTDOWNBODY}" | mail -s "${SHUTDOWNSUBJECT}" ${EMAIL}
sleep 4
RETVAL=$?
sleep 4
if [ ${RETVAL} -eq 0 ]; then
rm -f ${LOCKFILE}
sleep 4
log_success_msg
else
log_failure_msg
fi
echo
return ${RETVAL}
}
start()
{
echo -n "Sending Startup Email: "
echo "${RESTARTBODY}" | mail -s "${RESTARTSUBJECT}" ${EMAIL}
RETVAL=$?
if [ ${RETVAL} -eq 0 ]; then
touch ${LOCKFILE}
log_success_msg
else
log_failure_msg
fi
echo
return ${RETVAL}
}
case "$1" in
start)
start
;;
stop)
stop
;;
status)
echo "Not applied to service"
;;
restart)
stop
start
;;
reload)
echo "Not applied to service"
;;
condrestart)
#
echo "Not applied to service"
;;
probe)
;;
*)
echo "Usage: SystemEmail{start|stop|status|reload|restart[|probe]"
exit 1
;;
esac
exit ${RETVAL}
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3- Make executable..
[ashutosh@server ~]# chmod u+x /etc/init.d/SystemEmail
4- Start Services..
[ashutosh@server ~]# service SystemEmail start
[ashutosh@server ~]# /etc/init.d/postfix restart
You will now receive two emails during a normal system reboot.
Alternative Simple Way for Email Alert on Reboot-
-------------------------------------------------------------------------------
[ashutosh@server ~]# vim crontab -e
Add the following line..
@reboot echo "Server has restarted "`hostname` | mail -s "System Restart" ashutosh.meritnation@gmail.com
______________________________________________________________________________________
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