Munin : Install2015/02/18

	Install Munin to monitor system status.
[1]	Install and start Apache httpd, refer to here.
[2]	Install Munin server. Also Install Munin agent to monitor Munin server itself.

# install from EPEL

[root@dlp ~]#

yum --enablerepo=epel -y install munin munin-node

[3]	Configure Munin.

[root@dlp ~]#

vi /etc/munin/munin.conf

# line 98: change to your own hostname

[

dlp.srv.world

]
address 127.0.0.1
use_node_name yes

[root@dlp ~]#

vi /etc/httpd/conf.d/munin.conf

# near line 17: add access permission

Order Deny,Allow
Deny from all
Allow from 127.0.0.1 10.0.0.0/24

[root@dlp ~]#

/etc/rc.d/init.d/httpd restart

Stopping httpd:

[ OK ]

Starting httpd:

[ OK ]

# add a user ( create a new file with "-c" ⇒ only add "-c" at the first time. )

[root@dlp ~]#

htpasswd -c /etc/munin/munin-htpasswd cent

New password:

# set password

Re-type new password:
Adding password for user cent

[4]	Configure Munin node as a monitoring target.

[root@dlp ~]#

vi /etc/munin/munin-node.conf

# line 37: change to your own hostname

host_name

dlp.srv.world

[root@dlp ~]#

/etc/rc.d/init.d/munin-node start

Starting Munin Node:

[ OK ]

[root@dlp ~]#

chkconfig munin-node on

[5]	Access to the "http://(Munin server's hostname or IP address)/munin/" from a client which is in the network allowed in config. Then, authentication is required, input a username and password you set in [3] and proceed next.

[6]	After sucessing authentication, the index page is displayed. It's possible to see graphs to click a hostname.

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