详见：http://www.51testing.com/html/86/n-214186.html
示例，监听ssh服务，如果停止则自动重启服务，步骤如下：
1、vi /etc/monit.d/sshd.monit。
2、撰写内容，如下：
check process sshd with pidfile /var/run/sshd.pid
start program = "/etc/init.d/sshd start"
stop program = "/etc/init.d/sshd stop"
if failed port 22 protocol ssh then restart
if 5 restarts within 5 cycles then timeout
3、如果要设置monit的相关参数，比如多长时间检测一次，请修改/etc/monit.conf，示例文件如下：
set daemon 300
set logfile /var/log/monit.log
set idfile /var/monit/id
set statefile /var/monit/state
set httpd port 2812 and use address 127.0.0.1
allow 127.0.0.1
allow surfront:surfront
check system 127.0.0.1
include /etc/monit.d/*.monit
4、重启monit服务，/etc/init.d/monit restart。
5、完毕，monit的相关日志位于/var/log/monit.log。