![]() If loadavg (1min) > 4 for 5 cycles then alert This says to timeout the service if it had to be restarted 2 times within 3 polling intervals. One of the features I liked was the ability to use "conditional logic" in determining the alert action. If failed checksum then exec "/watch/dog" # Run /watch/dog in the case that the binary was changed Then exec "/usr/local/apache/bin/apachectl graceful" # Reload apache if the nf file was changed If failed port 80 protocol http then restart If cpu usage > 95% for 3 cycles then restart If 2 restarts within 3 cycles then timeout Start program = "/etc/init.d/httpd start" with timeout 60 seconds With pidfile "/usr/local/apache/logs/httpd.pid" Set alert httpd port 2812 and use address localhostĪllow localhost # Allow localhost to connect Set daemon 120 # Poll at 2-minute intervals What got me interested in monit, besides the fact that it's FOSS, was the easy configuration. You may then install mmonit on a central monitoring management server, who will track all targets and report in the form of a nice "green-light/red-light" web interface. It's not an IPMI or SNMP aware monitoring package, but it's simplicity in setup, and built-in services monitoring is appealing for the situations I needed to track. Thanks.I've been using a very simple monitoring package called Monit. If you liked this post please share it with your friends on the social networks using the buttons on the left or simply leave a reply below. They are available 24×7 and will take care of your request immediately. Of course, you don’t have to do any of this if you use one of our Linux VPS Hosting services, in which case you can simply ask our expert Linux admins to setup this for you. For more information about Monit, please refer to the official Monit documentation. You have successfully installed and configured Monit on your Ubuntu 16.04 VPS. If space usage > 95% for 10 cycles then alert If failed host 127.0.0.1 port 3306 then restartįile size check file syslog with path /var/log/syslogįilesystem check filesystem "sda1" with path /dev/sda1 Start program = "systemctl start mariadb" with timeout 30 seconds MariaDB check process mariadb with pidfile /run/mysqld/mysqld.pid If 5 restarts within 5 cycles then timeout If failed unixsocket /run/php/ then restart Stop program = "systemctl stop php7.0-fpm" Start program = "systemctl start php7.0-fpm" with timeout 30 seconds PHP-FPM check process php-fpm with pidfile /run/php/ If 5 restarts within 10 cycles then timeout 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. ![]() In this article, we will show you how to install and configure Monit on Ubuntu 16.04.
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