Install Munin on CentOS 7

To install Munin on CentOS 7, we do this:
install munin munin-node

Enable and start:
systemctl enable munin-node
systemctl start munin-node

Opening the main munin configuration file:
nano /etc/munin/munin.conf

we replace localhost with Without the comments, the changed file looks like this:

# a simple host tree
    use_node_name yes

nano /etc/httpd/conf.d/munin.conf

Alias /munin /var/www/html/munin

The munin statistics are protected with a username and password (Apache basic auth):
htpassd /etc/munin/munin-htpasswd admin

service httpd restart

Done. Go to in your browser, and you see the first statistics.