Author copies of RHCSA 10 Study Companion — my fourth book, published by Apress.

Renewed EX442 Linux Performance Tuning on RHEL 8 — first passed on RHEL 5 in 2009 during RHCA.

Updated EX280 OpenShift Administration certification to OCP 4.2, five years after the original OpenShift 2.1 exam.

I have created diagram which shows how Director deployed services in RHOSP 10. That is something like summary for “UNDERSTANDING RED HAT OPENSTACK PLATFORM HIGH AVAILABILITY ” guide. If you learning RHOSP it would be useful.

I have received the results for EX220 Red Hat Certified Specialist in Hybrid Cloud Management today. Now I have Red Hat Certified Architect Level X.