[monit] how to install monit on CentOS 5.X 64bit

Add Dag RPM Repository

# vi /etc/yum.repos.d/Dag.repo

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[dag]

name=Dag RPM Repository for Red Hat Enterprise Linux

baseurl=http://apt.sw.be/redhat/el$releasever/en/$basearch/dag

gpgcheck=0

enabled=1

protetc=0

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Install & configure monit

# yum install monit

# vi /etc/monit.conf

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set daemon 120

set logfile syslog facility log_daemon

set idfile /var/monit/id

set statefile /var/monit/state

set mailserver localhost

set alert your@email.com

set httpd port 80 and

     use address localhost

     allow localhost

check process apache with pidfile /usr/local/apache/logs/httpd.pid

    start program = "/etc/init.d/httpd start" with timeout 60 seconds

    stop program = "/etc/init.d/httpd stop"

    if cpu > 60% for 2 cycles then alert

    if cpu > 80% for 5 cycles then restart

    if totalmem > 200.0 MB for 5 cycles then restart

    if children > 250 then restart

    if loadavg(5min)greater than 10 for 8 cycles then stop

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start monit

# service monit start