Munin: Server Statistics, The Easy Way
Well, why to reinvent wheel? Just use munin and be happy. Installing munin is easy enough. Just do a yum install munin munin-node and you’ll be done.
After installation you need to configure it. For that edit file /etc/munin/munin.conf and uncomment and edit the following lines
# Where to look for the HTML templates
# a simple host tree
Here are a couple of the graphs I have obtained (and there are tonnes more):
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