Munin is an open-source network monitoring tool that helps you monitor various aspects of your systems, such as CPU usage, memory usage, disk usage, network traffic, and more. It is designed to be simple to set up and use, making it a popular choice for sysadmins and network administrators.
Here's a step-by-step guide on how to install Munin on CentOS 7:
Update your system: sudo yum update
Install Munin and its dependencies: sudo yum install munin
Configure Munin by editing the main configuration file: sudo vi /etc/munin/munin.conf
Make sure the following settings are correct:
dbdir /var/lib/munin - The directory where Munin stores its data files.
htmldir /var/www/html/munin - The location where the Munin web interface will be served from.
logdir /var/log/munin - The directory where Munin stores its log files.
Configure Apache to serve the Munin web interface:
Start Munin service and enable it to start on boot: sudo systemctl start munin and sudo systemctl enable munin
Once you have completed the above steps, you should be able to access the Munin web interface by opening your web browser and navigating to http://your_server_ip/munin/. You'll find a wealth of information about your system's performance and usage displayed in easy-to-understand graphs and charts.
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