If you are looking a way to monitor your servers statistics (disc, network, CPU, processes..) - Munin is one of great tools for that.

You need first to install Munin server on one node:

yum install munin

..which will automatically install Apache configuration file into /etc/httpd/conf.d/munin.conf and put all other configuration files into /etc/munin

Next what you need to do is to modify /etc/munin/munin.conf in order to add your client hosts which you want to monitor (change address to suit your needs):


[web1]
address 10.0.1.1
use_node_name yes

After that, you need to install Munin client on a client machines which you want to monitor:


yum install munin-node

munin-node-configure --suggest

.. and in /etc/munin/munin-node.conf add the following (replace your Munin master server):


allow ^127\.0\.0\.1$
allow ^::1$
allow Munin-master-server-IP

After that, you need to start munin-node service on clients:


/etc/init.d/munin-node start
chkconfig munin-node on