Ubuntu 14.04
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Munin : Install
2016/01/15
 
Install Munin to monitor system status.
[1]
[2] Install Munin server.
Also Install Munin agent to monitor Munin server itself.
root@dlp:~#
apt-get -y install munin munin-node
[3] Configure Munin Server.
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/munin/apache.conf
# line 18: add access permission

Allow from localhost 127.0.0.0/8 ::1
10.0.0.0/24
# line 29-32: uncomment

AuthUserFile /etc/munin/munin-htpasswd
AuthName "Munin"
AuthType Basic
require valid-user
root@dlp:~#
/etc/init.d/munin start

root@dlp:~#
/etc/init.d/apache2 restart

* Restarting web server apache2
...done.
# add a user ( create a new file with "-c" )

root@dlp:~#
htpasswd -c /etc/munin/munin-htpasswd ubuntu

New password:    
# set password

Re-type new password:
Adding password for user ubuntu
[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/init.d/munin-node stop

* Stopping Munin-Node
...done.
root@dlp:~#
/etc/init.d/munin-node start

* Starting Munin-Node
...done.
[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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