Saeed, A Rocks cluster presents a set of web pages to monitor its activities and configuration. The "frontend" node of the cluster serves these pages using its built in Apache webserver. This section describes the web-based monitoring tools available out of the box on all Rocks clusters.
To monitor your cluster first you need to configure its X window system. open a terminal and switch to root:
# system-config-display
# startx
Once this is done open a web browser at the URL
http://localhost/ to view the cluster site. there you will get all the information about you network and compute-nods.