If cpu usage > 80% for 5 cycles then alert Start program = "systemctl start nginx" with timeout 30 seconds You can now configure Monit to monitor your processes, file systems and resources by editing the /etc/monit/monitrc file.īelow are some example configurations: Nginx check process nginx with pidfile /run/nginx.pid Reload the Monit service with the following command: monit reloadĪnd you should be able to login to the Monit web interface at : localhost:2812 Use address localhost # only accept connection from localhostĪllow localhost # allow localhost to connect to the server andĪllow admin:monit # require user 'admin' with password 'monit' If you want to enable the Monit HTTP interface open the /etc/monit/monitrc file and uncomment the following lines: set httpd port 2812 and You can install the monit package from the official Ubuntu repositories by issuing the following command: sudo apt install monit Login to your VPS via SSH ssh Install Monit ![]() This guide should work on other Linux VPS systems as well but was tested and written for an Ubuntu 16.04 VPS. With Monit you can also monitor your network connections, CPU usage, RAM memory load average and much more. You can use Monit to stop or restart your web server if it is using too much resources, to monitor daemon processes, to monitor files, directories and get an email alert or perform a predefined action if they change. Monit is an open source tool for monitoring and managing, processes, files, directories and file systems on a UNIX system. Your feedback is highly appreciated(happy-face).In this article, we will show you how to install and configure Monit on Ubuntu 16.04. If you have any questions let me know in the comments below. Documentation contains all the configuration in the world you need. If you are worrying about other configuration such as NginX, SSHD, PostgreSQL etc you can refer Real-world configuration examples. Monit Web Interface : Also check out logs as well. Now log into the web interface by navigating to the must be good as shown below. ![]() You can verify that monit service is started by checking log file. Monit -t to check whether the configurations are correct. Start program = "/etc/init.d/mysql start" check process mysqld with pidfile /var/run/mysqld/mysqld.pid Stop program = "/etc/init.d/apache2 stop"īelow is to configure MySQL server. Start program = "/etc/init.d/apache2 start" with timeout 60 seconds check process apache with pidfile /run/apache2/apache2.pid Let’s add below lines to monitor Apache and MySQL.īelow is to configure Apache web server. You can change that according to the criticality of the system. In this article, I’ll be using monitrc.Įdit /etc/monit/monitrc. In the file as you can see By default, it is set up to check that services are running every 2 minutes which should good enough for you. status command output ConfiguringĬonfigurations can be specified in the /etc/monit/monitrc file or using individual files in /etc/monit/conf.d/ directory. Now you will able to access the monit web interface by navigating to the try monit status which will give the below output. Use address localhost # only accept connection from localhostĪllow localhost # allow localhost to connect to the server andĪllow admin:monit # require user 'admin' with password 'monit'Īllow # allow users of group 'monit' to connect (rw)Īllow readonly # allow users of group 'users' to connect readonly ![]() Now uncomment below lines starting from line 118. Most probably just like me you should get the error below. ![]() Okay now time to check whether it’s running. sudo apt-get install monit installing monit Also check out it’s design philosophy here. It can do a lot more than you think, it can do maintenance as well as fix the errors in an error situation in below sections.įor more info on above sections please refer this link. In this article I’ll be covering end-to-end and providing you value links to be bookmarked in your browser(tongue-out-face). With the web interface given you could see what’s going on with your system. It’s important system monitoring tool anyone would like to have in their mission critical systems. It has the ability to start a process if it is not running, restart a process if not responding and stop a process if uses high resources. In simple words it’s a helpful program that automatically monitors and manages server programs/resources to ensure that they stay online 24/7 while maintaining the correct file size, checksum and permissions.
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