[Linux] 用Monit监测Linux 服务器

# wget http://packages.sw.be/rpmforge-release/rpmforge-release-0.3.6-1.el5.rf.i386.rpm 
# rpm -Uvh rpmforge-release-0.3.6-1.el5.rf.i386.rpm 
# yum install monit 
# vi /etc/monit.conf

set daemon 120 
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 
check process mysql with pidfile /var/run/mysqld/mysqld.pid 
group database 
start program = “/etc/init.d/mysqld start” 
stop program = “/etc/init.d/mysqld stop” 
if failed host 127.0.0.1 port 3306 then restart 
if 5 restarts within 5 cycles then timeout 
check process nginx with pidfile /var/run/nginx.pid 
start program = “/etc/init.d/nginx start” 
stop program = “/etc/init.d/nginx stop” 
if failed host www.yanghengfei.com port 80 protocol http 
then restart 
check process php_cgi with pidfile /var/run/php_cgi.pid 
start program = “/etc/init.d/php_cgi start” 
stop program = “/etc/init.d/php_cgi stop” 
if failed host 127.0.0.1 port 9000 then restart 
if 5 restarts within 5 cycles then timeout 
check process apache with pidfile /var/run/httpd.pid 
group www 
start program = “/etc/init.d/httpd start” 
stop program = “/etc/init.d/httpd stop” 
if failed host www.yanghengfei.com port 8080 protocol http 
then restart 
if cpu is greater than 80% for 2 cycles then alert 
if cpu > 80% for 5 cycles then restart 
if totalmem > 512 MB for 5 cycles then restart 
if children > 200 then restart 
if loadavg(5min) greater than 10 for 8 cycles then stop 
if 3 restarts within 5 cycles then timeout

# /etc/init.d/monit start 
# /sbin/chkconfig monit on