Forked instructions

monitrc

//Monitor CentMinMod server using Monit

//About Monit
Monit is a helpful program that automatically monitors and manages server programs to ensure that they not only stay online consistently, but that the file size, checksum, or permissions are always correct. Additionally monit comes with a basic web interface through which all of the processes can be set up. This tutorial will cover the most basic setup and configuration.

//Install Monit on CentOS 6.5

//STEP 1: Installation
  //packages needed
  yum install pam-devel 
  yum install openssl-devel

//STEP 2: Install Monit
  cd /usr/local/src
  wget http://mmonit.com/monit/dist/monit-5.8.tar.gz
  tar -zxvf monit-5.8.tar.gz
  cd monit-5.8
  ./configure (If this fails, fix as necessary, then re-unpack the tar and try again)
  make -j2
  make install

//STEP 3: Setup monitrc
  cp monitrc /etc/
  vi /etc/monitrc
  # Set the 'set daemon' line at the beginning to your preferred interval.
  # At the end of monitrc add the following.
  //nginx
check process nginx with pidfile /user/local/nginx/logs/nginx.pid
  start program = "/etc/init.d/nginx start"
  stop program  = "/etc/init.d/nginx stop"
  group nginx

//php-fpm
check process php-fpm with pidfile /var/run/php-fpm/php-fpm.pid
  group nginx
  start program = "/etc/init.d/php-fpm start"
  stop program  = "/etc/init.d/php-fpm stop"
  if failed host localhost port 80 protocol http
     and request '/phpping'
     with timeout 20 seconds for 5 cycles
     then restart
  ## If the restarts attempts fail then alert.
  if 3 restarts within 5 cycles then timeout

//MySql/MariaDB
check process mysql with pidfile /var/lib/mysql/server.yourdomain.com.pid
   group nginx
   start program = "/etc/init.d/mysql start"
   stop program = "/etc/init.d/mysql stop"
   if failed host localhost port 3306 protocol mysql then restart
   if 5 restarts within 5 cycles then timeout


//STEP 4: setup the init.d file
  cp contrib/rc.monit /etc/init.d/monit
  chmod 755 /etc/init.d/monit
  //You may need to fix the line inside the above file that's pointing at '/usr/bin/monit' to '/usr/local/bin/monit'. After this is in place you should have the 'service monit restart' command available.

//STEP 5: start Monit at boot
  //edit vim '/etc/rc.d/rc.local' and add in the next line
  /usr/local/bin/monit -c /etc/monitrc -p /var/run/monit.pid -l /var/log/monit.log

//STEP 6: Check
  service monit status

//Optional - Enable email alert
  cp monitrc /etc/
  vi /etc/monitrc
  set mailserver localhost,               # primary mailserver
  set mail-format { from: [email protected] }
  set alert [email protected]

//Optional - Enabling monitor status for online
 cp monitrc /etc/
 vi /etc/monitrc
 set httpd port 2812 and
     use address YOURSERVER.com
     allow monit:password //SET your own username and password

In case if you installed CSF firewall, Edit 'vi /etc/csf/csf.conf' and add the port 2812 in TCP_IN and TCP_OUT. then run 'csf -r'

Pushover API support:
http://mmonit.com/wiki/MMonit/Notification


Finish Up
Once you have configured all of the programs that you want to run, they will be automatically tracked and restarted should they turn off. 

You can control the programs through both the web interface or the command line. 

Once you have set up the configuration, check the syntax:
monit -t

After resolving any possible syntax errors, you can start running all of the monitored programs.
monit start all