Munin - Add monitoring item2011/05/21

	Many monitoring target items are enabled by default but there are more many items. Those are under "/usr/share/munin/plugins" and it's possible to enable them to create links from them to "/etc/munin/plugins". And also there are many plugins in Munin repository. For exmaple, enable Apache access plugin.
[1]	add apache_accesses plugin

[root@master ~]#

ln -s /usr/share/munin/plugins/apache_accesses /etc/munin/plugins/apache_accesses

[root@master ~]#

vi /etc/httpd/conf/httpd.conf

# line 228: uncomment

ExtendedStatus On

# line 921-926: uncomment

<Location /server-status>
SetHandler server-status
Order deny,allow
Deny from all
Allow from

127.0.0.1

# IP address you allow

</Location>

[root@master ~]#

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

Stopping httpd:

[ OK ]

Starting httpd:

[ OK ]

[root@master ~]#

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

Stopping Munin Node agents:

[ OK ]

Starting Munin Node:

[ OK ]

[2]	Access to "http://(hostname or IP address)/munin/" with web browser after 5 minutes later, then Apache access will be added like follows.

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