Configuring YUM Repositories on Red Hat Enterprise Linux

YUM on current RHEL is a DNF compatibility interface On Red Hat Enterprise Linux 9, DNF is the package-management implementation. The familiar yum command remains for compatibility and resolves to DNF behavior, rather than to the old RHEL 7 YUM implementation. An administrator following legacy examples should check the distribution version, enabled repositories, subscription entitlement… Read More »

What Linux Certifications Are Worth All Your Time and Effort?

There is no single Linux certification that every administrator, security analyst, developer, or cloud engineer needs. The valuable credential is the one that tests the work you are trying to do. An administrator responsible for Red Hat Enterprise Linux servers faces different decisions from a new help-desk technician learning shell basics or an engineer who… Read More »

Red Hat Certificate of Expertise in Seam Retired

The retirement of the Red Hat Certificate of Expertise in Seam marks a notable moment in the evolution of Red Hat’s certification portfolio. This credential, which was designed to validate a developer’s proficiency in building enterprise Java applications using the JBoss Seam framework, has officially been withdrawn from the active certification catalog. For professionals who… Read More »

Red Hat Certificate of Expertise in Hybrid Cloud Management Retired

Why this retirement announcement matters Red Hat's Certificate of Expertise in Hybrid Cloud Management belongs to an earlier phase of enterprise cloud management education. The original article reported a credential retirement, not a permanent disappearance of hybrid cloud operations. The distinction matters: an exam can be retired because the product versions and syllabus have changed,… Read More »

Red Hat Certified Architect (RHCA): Wider Exam Selection is Here

Historical context for this 2014 article Originally published on September 29, 2014, this article records an expansion of the RHCA examination selection. The discussion below retains the language and assumptions of its publication period. Words such as “new,” “now,” “coming soon,” “free,” and references to exam registration or a specific product release are historical statements,… Read More »

Have You Heard? Red Hat Changes Certification Program on October 1

Historical context for this 2014 article Originally published on September 26, 2014, this article records Red Hat's October certification-policy announcement. The discussion below retains the language and assumptions of its publication period. Words such as “new,” “now,” “coming soon,” “free,” and references to exam registration or a specific product release are historical statements, not active… Read More »

Red Hat Limited Offer: Get a FREE OpenStack/ RHCSA Course

A historical Red Hat promotion advertised free OpenStack or RHCSA-related training. The original announcement was relevant to its own offer window; it should not be interpreted in October 2026 as proof that an identical course or voucher remains freely available. Enrollment eligibility, duration, offered material and exam access depend on the terms of the specific… Read More »

Red Hat Updates RHEL7-Related Exams: EX200 and EX300

Historical context for this 2014 article Originally published on June 24, 2014, this article records RHEL 7-era EX200 and EX300 changes. The discussion below retains the language and assumptions of its publication period. Words such as “new,” “now,” “coming soon,” “free,” and references to exam registration or a specific product release are historical statements, not… Read More »

Becoming Certified System Administrator in Red Hat OpenStack: VIDEO

Historical context for this 2014 article Originally published on June 05, 2014, this article records Red Hat OpenStack administration and the way training videos once supported performance-based preparation. The discussion below retains the language and assumptions of its publication period. Words such as “new,” “now,” “coming soon,” “free,” and references to exam registration or a… Read More »

Red Hat 15 Years Anniversary Offer: Promo Code Inside

The original Red Hat anniversary-offer article appeared in March 2014. Its promise of an anniversary promotional code should be understood as a historical offer, not a current 2026 discount. An anniversary campaign may have been an attractive reason to explore Red Hat training at the time, but a historical marketing announcement is not proof that… Read More »

Red Hat Certified System Administrator in Red Hat OpenStack: What Lies behind The New Name?

Red Hat once used the name Red Hat Certified System Administrator in Red Hat OpenStack for a qualification focused on administering cloud infrastructure. The terminology has evolved, but the technical job remains recognizable: run and maintain a Red Hat OpenStack Platform environment. In the current certification catalog, Red Hat uses the name Red Hat Certified… Read More »