Red Hat Linux (RHEL 6)
Red Hat System Administration – I (RH 124)
Red Hat System Administration – II (RH 134)
Red Hat System Administration – III (RH 254)

Cloud Computing
Red Hat Enterprise Virtualization (RHCVA) (RH318)
Red Hat Openstack Admintstrator (CL210)

Red Hat Data Center Specilist (RHCDS)
Red Hat Sever Hardening (RH413)
Red Hat Enterprise Clustering and Storage Management (RH436)
Red Hat Enterprise Deployment and System Management(RH401)
Red Hat Enterprise Directory Services and Authentication (RH423) OR
Red Hat Enterprise Virtualization Administrator (RH318)

Red Hat Certified Security Specilist
Red Hat Enterprise Security Network Services (RHS333)
Red Hat Enterprise Directory Services and Authentication (RH423)
Red Hat Enterprise SELinux Policy Administration (RHS429)

Red Hat Certified Architect
Red Hat Enterprise Security Network Services (RH333)
Red Hat Enterprise Deployment and System Management (RH401)
Red Hat Certified Virtualization Administrator (RH318)
Red Hat Enterprise Clustering and Storage Management (RH436)
Red Hat Enterprise Performance Tuning (RH442)

Monitoring Servers and Networks
Nagios – Monitoring Servers and Networks

Unix Shell Scripting
Bash Shell Scripting & awk programming