Munin is a monitoring tool that helps with system administration for networks or servers - it allows you to see the resources that are being consumed by a server, and helps you identify and fix issues before they become major problems. In this tutorial, we will walk through the steps to install Munin on Ubuntu Server Latest.
Before we begin, we need to make sure that our server is up to date with its packages. Run the following two commands to update and upgrade:
sudo apt-get update
sudo apt-get upgrade
Run the following command to install Munin on your Ubuntu Server:
sudo apt-get install munin munin-node
This will install both the Munin server and the Munin node.
Munin uses Apache to create the graphs it generates, so we need to configure Apache to work with Munin. Run the following command to create the Munin configuration file:
sudo nano /etc/apache2/sites-available/munin.conf
Add the following code to the file you just created:
# Munin Apache configuration
<VirtualHost *:80>
ServerAdmin webmaster@localhost
DocumentRoot /var/cache/munin/www
ServerName your.server.hostname
<Directory /var/cache/munin/www>
Order allow,deny
Allow from all
Options None
# This file is for Apache 2.2.x
# For Apache 2.4.x you'll need to use Require all granted
#Require local
</Directory>
Alias /munin /var/cache/munin/www
# Access and error logs for munin
LogLevel warn
ErrorLog ${APACHE_LOG_DIR}/munin_error.log
CustomLog ${APACHE_LOG_DIR}/munin_access.log combined
# Rewrite rules and custom config for munin URL
RewriteEngine on
RewriteRule ^/munin$ /munin/ [R]
RewriteRule ^/munin/(.*)$ /$1 [L]
</VirtualHost>
Replace your.server.hostname with your server's hostname. Save and close the file.
Disable the default Apache configuration with the following command:
sudo a2dissite 000-default
Enable the Munin configuration with the following command:
sudo a2ensite munin.conf
Restart Apache with the following command:
sudo service apache2 restart
By default, Munin only monitors resources on the server it is installed on. However, if you have multiple servers that you want to monitor, you need to configure Munin to do so.
Run the following command to edit the Munin configuration file:
sudo nano /etc/munin/munin.conf
Delete the allow ^127\.0\.0\.1$ line from the [localhost] section if you want to allow external servers to access your Munin data.
Add the following lines to the file:
[server1.example.com]
address 192.168.11.101
use_node_name yes
[server2.example.com]
address 192.168.11.102
use_node_name yes
Use the IP addresses and hostnames of the servers you want to monitor. Save and close the file.
Restart the Munin service with the following command:
sudo service munin-node restart
Munin is now installed and configured on your Ubuntu Server. To access the Munin web interface, open a web browser and enter the following URL:
http://your.server.hostname/munin/
Replace your.server.hostname with your server's hostname. You should see a list of the servers you added to the Munin configuration file. Click on a server to see its list of resources, and click on a resource to see its graph.
Congratulations, you have successfully installed Munin on your Ubuntu Server Latest!
If you want to self-host in an easy, hands free way, need an external IP address, or simply want your data in your own hands, give IPv6.rs a try!
Alternatively, for the best virtual desktop, try Shells!
