Red Hat is one of linux operating system created by Red Hat, Inc. RHL (Red Hat Linux) is linux operating system are popular until production ceased in 2004.
Since 2003, Red Hat Has discontinued production of Red Hat Linux (RHL), but issued a Red Hat Enterprise Linux (RHEL) for enterprise environment (not free).
About certification, Red Hat certification was ranked as one of the top 3 skills needed many IT vendors. Red Hat certification also important like another certification: Cisco, Microsoft, or Mikrotik. If the highest certification in Red Hat is RHCA and have to take exams RHCSA (Red Hat Certified System Administrator) at the first. RHCSA is skill practice for a System Administrator (sysadmin). Then after graduation from RHCSA we can take the RHCE (Red Hat Certified Engineer) is a professional certification, then to the expert certification is RHCA (Red Hat Certified Architect).
A Red Hat Certified Architect (RHCA) is a Red Hat Certified Engineer (RHCE) who has attained Red Hat's highest level of certification. An RHCA is a professional whose certification status with Red Hat is current and who has earned thee following Red Hat Certificates of Expertise:
- Red Hat Certificate of Expertise in Deployment and Systems Management.
- Red Hat Certificate of Expertise in Directory Services and Authentication or Red Hat Certified Virtualization Administrator.
- Red Hat Certificate of Expertise in Clustering and Storage Management.
- Red Hat Certificate of Expertise in Security: Network Services or Red Hat Certificate of Expertise in Server Hardening.
- Red Hat Certificate of Expertise in Performance Tuning.
