I am teaching Red Hat, AIX, Oracle Solaris, HP-UX, Microsoft Windows Operating System, Ansible, Docker, Kubernetes, Lustre File System, PGP, PERL Programming, Informix Database, Microsoft SQL, MySQL Cluster, Veritas, Symantec, Altiris and Cisco products for more than twenty years in many countries.

I am also handle professional services for Unix Servers, Veritas Netbackup, Veritas Infoscale Availability and Cisco VOIP for more than ten years in Indonesia and Philippines.