Munin : Install2026/06/10

	Install Munin that is a free and open-source computer system monitoring, network monitoring, and infrastructure monitoring software.
[1]	Install and start Apache httpd, refer to here.
[2]	Configure SSL/TLS setting, refer to here. (not required but recommended)
[3]	Install Munin server. Also Install Munin agent to monitor Munin server itself.

root@dlp:~#

apt -y install munin munin-node

[4]	Configure Munin Server.

root@dlp:~#

vi /etc/munin/munin.conf

# line 108 : change to your hostname
[dlp.srv.world]
    address 127.0.0.1
    use_node_name yes

root@dlp:~#

vi /etc/apache2/conf-enabled/munin.conf

# line 18 : add access permission if you need
    Require local
    Require ip 10.0.0.0/24

root@dlp:~#

systemctl restart munin apache2

[5]	Configure Munin node as a monitoring target.

root@dlp:~#

vi /etc/munin/munin-node.conf

# line 37 : change to your hostname

host_name

dlp.srv.world

root@dlp:~#

systemctl restart munin-node

[6]	If UFW is enabled, allow service port.

root@dlp:~#

ufw allow 4949/tcp

Rule added
Rule added (v6)

[7]	Access to the [(Munin server's hostname or IP address)/munin/] from a client computer which is in the network allowed by Munin. Then, Munin start page is displayed.

[7]	It's possible to see graphs of stats to click a hostname.

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