Monit is a free and open-source process supervision tool that helps you monitor and manage your system's processes, files, directories, and network connectivity. In this tutorial, you will learn how to install Monit on macOS using Homebrew.
Before installing Monit, make sure you have Homebrew installed on your macOS system. If you don't have it, you can install it by running the following command in your terminal:
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
To install Monit, run the following command in your terminal:
brew install monit
This will install Monit and all its required dependencies on your system.
Once installed, you can configure Monit by editing the /usr/local/etc/monitrc file. Here's a sample configuration file:
# Set Monit to run as a daemon
set daemon 120
# Set the default log file and log level
set logfile /var/log/monit.log
set loglevel info
# Set the SMTP server to send alert emails
set mailserver smtp.gmail.com port 587
username "your_email@example.com" password "your_password"
using tlsv1
# Set the default email alerts
set alert admin@example.com
# Monitor the system's memory usage
check system localhost
if memory usage > 75% then alert
if memory usage > 90% then restart
# Monitor a specific process
check process httpd with pidfile /var/run/httpd.pid
start program = "/usr/sbin/apachectl start"
stop program = "/usr/sbin/apachectl stop"
if cpu > 60% for 2 cycles then alert
if cpu > 80% for 5 cycles then restart
if totalmem > 500 MB for 5 cycles then restart
To start Monit, run the following command in your terminal:
brew services start monit
This will start Monit and it will run as a background process.
You have successfully installed and configured Monit on your macOS system using Homebrew. You can now use Monit to monitor your system's processes, files, directories, and network connectivity, and set up alerts and other automated responses to keep your system running smoothly.
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