I have running some servers on rackspace and I want to know if there is a web application like linode-graphs as you can see in the image ?
I want to see graphs of server activities like:
thanks for your help :)
Munin is just what you are asking for. It consists of two parts;
Ubuntu / Debian
RHEL / CentOS
Munin is definitely an opinion. Another solution that i like is Observium. Take a look at Observium here. You will get everything you need including the same graphing engine (rrdtool) in this case. I find the interface pretty easy to navigate. The only catch is you can only grab it via SVN and there are some dependencies that you'll need to address.