![]() The Security of your Munin installation is outside the scope of this tutorial. Note: Munin requires firewall port 4949 to be opened. Note: Munin requires a working web server on the host server, such as Apache or Nginx to render and display its statistics pages.ġ.3 Remove Munin and Munin Node # yum remove munin-node # chkconfig -level 35 munin-node on CentOS 7 # systemctl enable rvice Now create the system startup links for Munin and startup the Munin daemon for the first time: CentOS 5,6 and Fedora # service munin-node start Follow the above steps, but only install the munin-node service on each server you wish to monitor: # yum install munin-node Munin node will have to be installed on each server you wish to monitor. This command also installs all dependencies, such as RRDTool that are required by Munin. You are now ready to issue the command to install both Munin and Munin Node on your server. It needs to be installed and configured on each server you wish to monitor.īefore we begin, first ensure that your server is up-to-date: # yum update Munin Node collects data on your servers.It then uses RRDtool to log and generate updated graphs and it renders all webpages. Munin is the daemon service aggregating all data, which is then pulled to the daemon.Munin is already included in Fedora and can be installed using yum (see step 1.2). Note: There is no need for Fedora users to install the EPEL repository. The wiki page also includes additional instructions for Red Hat Network subscribers who are installing the EPEL repository. You can access the latest version of the RPM installer from the Fedora EPEL wiki page. If you receive a File Not Found Error message when trying to download the package, the version number might have changed. If this command does not work, perhaps because the CentOS Extras repository is disabled, the section below provides manual installation instructions based on your distribution version.ĬentOS and Red Hat Enterprise Linux 5.x # wget sudo rpm -Uvh epel-release-5*.rpmĬentOS and Red Hat Enterprise Linux 6.x # wget sudo rpm -Uvh epel-release-6*.rpmĬentOS and Red Hat Enterprise Linux 7.x # wget sudo rpm -Uvh epel-release-7*.rpm The EPEL repository provides easy to install packages for commonly used software. Installation 1.1 Install EPEL RepositoryĪll files required for installation of Munin are contained in the EPEL repository. If you do not have root-level access you will not be able to make these changes.ġ. These instructions apply primarily to customers who have Virtual Private Servers or Dedicated servers. ![]() Note: This guide assumes you are familiar with SSH and basic command line navigation. This how-to guide explains how to install and configure Munin and Munin Node on CentOS 5,6,7 or Fedora. Munin uses the excellent RRDTool (written by Tobi Oetiker) and the framework is written in Perl, while plugins may be written in any language. It makes it easy to see how you're doing capacity-wise on any resources. It makes it easy to determine "what's different today" when a performance problem crops up. Using Munin you can easily monitor the performance of your computers, networks, SANs, applications, weather measurements and whatever comes to mind. While it may not be the most scalable solution, it's flexible, yet easy to understand when monitoring a dozen or so servers. Its emphasis is on plug and play capabilities. It presents all the information in graphs through a web interface. Munin surveys all your servers and remembers what it saw.
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