Six months Diploma in Information Technology infrastrucure and system Security course covers topics on OS security, OS hardening, Network maonitoring and managament. In network monitoring students had hands on Nagios installation, configuration. In data centre management they learnt about cluster management and Rocks clouster isntallation and cluster security. Internet security and vulnerabilities are thought. Virtualization and security toptics are covered. Under firewalls IPtables theory and practicals are done for system security. using opensource Rocks cluster installation software rocks cluster was setup and demonstrated to staudents. The network monitoring for cluster the tool named gangalia was demonstrated to students. Students were asked to setup clusters with VMs and helped in setting up.