The Wombelix Post - RedHathttps://dominik.wombacher.cc/2022-12-30T00:00:00+01:00Red Hat Certified Specialist in Linux Diagnostics and Troubleshooting2021-09-20T00:00:00+02:002022-12-30T00:00:00+01:00Dominik Wombachertag:dominik.wombacher.cc,2021-09-20:/posts/red-hat-certified-specialist-in-linux_diagnostics_and_troubleshooting.html<!-- SPDX-FileCopyrightText: 2023 Dominik Wombacher <dominik@wombacher.cc> -->
<!-- -->
<!-- SPDX-License-Identifier: CC-BY-SA-4.0 -->
<p>It's been a while since I tackled the <a class="reference external" href="https://dominik.wombacher.cc/posts/red-hat-certified-system-administrator-rhel-8.html">RHCSA</a>,
<a class="reference external" href="https://dominik.wombacher.cc/posts/red-hat-certified-engineer-ansible-28-rhel-8.html">RHCE</a> followed by the
<a class="reference external" href="https://dominik.wombacher.cc/posts/red-hat-certified-specialist-in-advanced-automation-ansible-best-practices-ansible-28-tower-35-rhel-8.html">RHCS (Ansible Best Practices)</a>,
but today I passed the EX342 and earned the 'Red Hat Certified Specialist ... <a class="read-more" href="/posts/red-hat-certified-specialist-in-linux_diagnostics_and_troubleshooting.html"> [read more]</a></p><!-- SPDX-FileCopyrightText: 2023 Dominik Wombacher <dominik@wombacher.cc> -->
<!-- -->
<!-- SPDX-License-Identifier: CC-BY-SA-4.0 -->
<p>It's been a while since I tackled the <a class="reference external" href="https://dominik.wombacher.cc/posts/red-hat-certified-system-administrator-rhel-8.html">RHCSA</a>,
<a class="reference external" href="https://dominik.wombacher.cc/posts/red-hat-certified-engineer-ansible-28-rhel-8.html">RHCE</a> followed by the
<a class="reference external" href="https://dominik.wombacher.cc/posts/red-hat-certified-specialist-in-advanced-automation-ansible-best-practices-ansible-28-tower-35-rhel-8.html">RHCS (Ansible Best Practices)</a>,
but today I passed the EX342 and earned the 'Red Hat Certified Specialist in Linux Diagnostics and Troubleshooting' Certification!</p>
<p>That's already my second Certification counting towards the Red Hat Architect, let's see if that's something I can achieve within the next year :)</p>
<p>The Exam is still based on RHEL 7, what's probably fine because most of the Topics and Tasks would be more or less identical on RHEL 8.
Was the hardest Red Hat Exam I attended so far, I studied with the RH342 eBook from my earlier RHLS and the Course from A Cloud Guru.</p>
<p>The ACG Course was okay but in my opinion didn't covered the Topics in the necessary depth, I don't think I could pass the Exam with ACG only.
The original Red Hat eBook in combination with existing knowledge and the Hands-On Labs from ACG was a good mix and preparation.</p>
<p>But due to the fact that the "new" RHCE is focusing on Ansible, I can only recommend to prepare additionally with the RHCE RHEL 7 Content!</p>
<p><strong>Summary</strong>: A Red Hat Certified Specialist in Linux Diagnostics and Troubleshooting is capable to prevent costly downtime due to system failure and quickly recover failed systems using analysis, diagnosis, and troubleshooting.</p>
<p>Source & Copyright: <a class="reference external" href="https://www.redhat.com">https://www.redhat.com</a></p>
<div class="section" id="skills">
<h2>Skills</h2>
<ul class="simple">
<li>Understanding and employing general methods for troubleshooting</li>
<li>Diagnosing and troubleshooting system start up issues</li>
<li>Diagnosing and troubleshooting file system issues</li>
<li>Resolving package management issues</li>
<li>Troubleshooting and fixing network connectivity issues</li>
<li>Diagnosing application issues</li>
<li>Identifying and fixing authentication issues</li>
<li>Gathering information to aid third party investigation of issues</li>
</ul>
<p>Source & Copyright: <a class="reference external" href="https://www.redhat.com">https://www.redhat.com</a></p>
</div>
<div class="section" id="certificate">
<h2>Certificate</h2>
<ul class="simple">
<li>Downloads<ul>
<li><a class="reference external" href="/certificates/Red_Hat_Certificate_COE-diag-trblshoot_Dominik_Wombacher.pdf">Certificate</a> (PDF, 856K)</li>
<li><a class="reference external" href="/certificates/Red_Hat_Certificate_COE-diag-trblshoot_Dominik_Wombacher.png">Badge</a> (PNG, 64K)</li>
</ul>
</li>
<li>Links<ul>
<li><a class="reference external" href="https://www.credly.com/badges/a9370b15-4363-4c87-adfd-84d33218b004/public_url">Verify Credly Badge</a>
(Archive: <a class="reference external" href="https://web.archive.org/web/20221230161109/https://www.credly.com/badges/a9370b15-4363-4c87-adfd-84d33218b004/public_url">[1]</a>,
<a class="reference external" href="https://archive.today/2022.12.30-161125/https://www.credly.com/badges/a9370b15-4363-4c87-adfd-84d33218b004/public_url">[2]</a>)</li>
<li><a class="reference external" href="https://rhtapps.redhat.com/certifications/badge/verify/YB2FOP3QSCV3PTZRLMFMRR54AUAEQU3CUPSQX2KSDXT6RW46LQ34ER3IZWRAFRSW6H6AKMWNCAWF4J4CANLMSLT4HHG2CEXIY5VD4KY=">Verify Red Hat Badge</a>
(Archive: <a class="reference external" href="https://web.archive.org/web/20210920125007/https://rhtapps.redhat.com/certifications/badge/verify/YB2FOP3QSCV3PTZRLMFMRR54AUAEQU3CUPSQX2KSDXT6RW46LQ34ER3IZWRAFRSW6H6AKMWNCAWF4J4CANLMSLT4HHG2CEXIY5VD4KY=">[1]</a>,
<a class="reference external" href="https://archive.ph/2021.09.20-124940/https://rhtapps.redhat.com/certifications/badge/verify/YB2FOP3QSCV3PTZRLMFMRR54AUAEQU3CUPSQX2KSDXT6RW46LQ34ER3IZWRAFRSW6H6AKMWNCAWF4J4CANLMSLT4HHG2CEXIY5VD4KY=">[2]</a>)</li>
<li><a class="reference external" href="https://rhtapps.redhat.com/verify/?certId=210-065-546">Verify Certificate</a></li>
</ul>
</li>
</ul>
</div>
Red Hat Certified Specialist in Advanced Automation: Ansible Best Practices - Ansible 2.8, Tower 3.5 & Enterprise Linux 82021-06-01T00:00:00+02:002022-12-30T00:00:00+01:00Dominik Wombachertag:dominik.wombacher.cc,2021-06-01:/posts/red-hat-certified-specialist-in-advanced-automation-ansible-best-practices-ansible-28-tower-35-rhel-8.html<!-- SPDX-FileCopyrightText: 2023 Dominik Wombacher <dominik@wombacher.cc> -->
<!-- -->
<!-- SPDX-License-Identifier: CC-BY-SA-4.0 -->
<p>After passing the RHCSA and RHCE Exam already a few weeks ago, I also completed the Red Hat Exam <em>EX447</em> today and earned the <strong>Red Hat Certified Specialist in Advanced ... </strong><a class="read-more" href="/posts/red-hat-certified-specialist-in-advanced-automation-ansible-best-practices-ansible-28-tower-35-rhel-8.html"> [read more]</a></p><!-- SPDX-FileCopyrightText: 2023 Dominik Wombacher <dominik@wombacher.cc> -->
<!-- -->
<!-- SPDX-License-Identifier: CC-BY-SA-4.0 -->
<p>After passing the RHCSA and RHCE Exam already a few weeks ago, I also completed the Red Hat Exam <em>EX447</em> today and earned the <strong>Red Hat Certified Specialist in Advanced Automation: Ansible Best Practices</strong> Certification.</p>
<p>It was the next logical Step to finish the Ansible Track before moving on to other Specialist Exams on my way to become a Red Hat Certified Architect (RHCA) one day ;).</p>
<p>Compared to the RHCE with a more or less 100% Ansible focus, EX447 was roughly 50% Ansible in more depth and 50% Ansible Tower.</p>
<p>I'm using AWX, the Tower Upstream Project, for quite some time already, I think that expirience helped a lot.</p>
<p><strong>Summary</strong>: A Red Hat Certified Specialist in Advanced Automation: Ansible Best Practices is able to automate management of large or complex networks of machines. He demonstrate mastery of Ansible, knowledge of Ansible Tower and an understanding of Ansible best practices.</p>
<p>Source & Copyright: <a class="reference external" href="https://www.redhat.com">https://www.redhat.com</a></p>
<div class="section" id="skills">
<h2>Skills</h2>
<ul class="simple">
<li>Understand and use Git to manage collections of playbooks</li>
<li>Manage inventory variables</li>
<li>Manage and Administer Ansible task execution</li>
<li>Transform data with filters and plugins</li>
<li>Delegate tasks</li>
<li>Install Ansible Tower</li>
<li>Manage access for Ansible Tower</li>
<li>Manage inventories, advanced inventories and credentials</li>
<li>Manage projects</li>
<li>Manage job workflows</li>
<li>Work with the Ansible Tower API</li>
<li>Backup and Restore Ansible Tower</li>
</ul>
<p>Source & Copyright: <a class="reference external" href="https://www.redhat.com">https://www.redhat.com</a></p>
</div>
<div class="section" id="certificate">
<h2>Certificate</h2>
<ul class="simple">
<li>Downloads<ul>
<li><a class="reference external" href="/certificates/Red_Hat_Certificate_RHCS_ansible_best_practices_Dominik_Wombacher.pdf">Certificate</a> (PDF, 856.2K)</li>
<li><a class="reference external" href="/certificates/Red_Hat_Certificate_RHCS_ansible_best_practices_Dominik_Wombacher.png">Badge</a> (PNG, 59.4K)</li>
</ul>
</li>
<li>Links<ul>
<li><a class="reference external" href="https://www.credly.com/badges/80688745-a3b8-4d01-bce6-63fb2490e4af/public_url">Verify Credly Badge</a>
(Archive: <a class="reference external" href="https://web.archive.org/web/20221230161213/https://www.credly.com/badges/80688745-a3b8-4d01-bce6-63fb2490e4af/public_url">[1]</a>,
<a class="reference external" href="https://archive.today/2022.12.30-161426/https://www.credly.com/badges/80688745-a3b8-4d01-bce6-63fb2490e4af/public_url">[2]</a>)</li>
<li><a class="reference external" href="https://rhtapps.redhat.com/certifications/badge/verify/YB2FOP3QSCV3PTZRLMFMRR54AUAEQU3CUPSQX2KSDXT6RW46LQ37KLSOOPEYMJDAE5EJIF3JZ6D665JFQCX7XVXXH5DT452GL3CMQ36Q77GFTUQMZCEY6URHUQ5UKSGZOKOWYMJRGQPNI2LHBGN6LLA2MI======">Verify Red Hat Badge</a>
(Archive: <a class="reference external" href="https://web.archive.org/web/20210609042040/https://rhtapps.redhat.com/certifications/badge/verify/YB2FOP3QSCV3PTZRLMFMRR54AUAEQU3CUPSQX2KSDXT6RW46LQ37KLSOOPEYMJDAE5EJIF3JZ6D665JFQCX7XVXXH5DT452GL3CMQ36Q77GFTUQMZCEY6URHUQ5UKSGZOKOWYMJRGQPNI2LHBGN6LLA2MI======">[1]</a>,
<a class="reference external" href="https://archive.today/2021.06.09-042129/https://rhtapps.redhat.com/certifications/badge/verify/YB2FOP3QSCV3PTZRLMFMRR54AUAEQU3CUPSQX2KSDXT6RW46LQ37KLSOOPEYMJDAE5EJIF3JZ6D665JFQCX7XVXXH5DT452GL3CMQ36Q77GFTUQMZCEY6URHUQ5UKSGZOKOWYMJRGQPNI2LHBGN6LLA2MI======">[2]</a>)</li>
<li><a class="reference external" href="https://rhtapps.redhat.com/verify/?certId=210-065-546">Verify Certificate</a></li>
</ul>
</li>
</ul>
</div>
Red Hat Certified Engineer - Ansible 2.8 & Enterprise Linux 82021-05-25T00:00:00+02:002022-12-30T00:00:00+01:00Dominik Wombachertag:dominik.wombacher.cc,2021-05-25:/posts/red-hat-certified-engineer-ansible-28-rhel-8.html<!-- SPDX-FileCopyrightText: 2023 Dominik Wombacher <dominik@wombacher.cc> -->
<!-- -->
<!-- SPDX-License-Identifier: CC-BY-SA-4.0 -->
<p>Today I earned the <strong>Red Hat Certified Engineer</strong> Certification by passing the Red Hat Exam <em>EX294</em>.</p>
<p>It's the Version 8 RHCE Exam which quite differ from the "old" one by ... <a class="read-more" href="/posts/red-hat-certified-engineer-ansible-28-rhel-8.html"> [read more]</a></p><!-- SPDX-FileCopyrightText: 2023 Dominik Wombacher <dominik@wombacher.cc> -->
<!-- -->
<!-- SPDX-License-Identifier: CC-BY-SA-4.0 -->
<p>Today I earned the <strong>Red Hat Certified Engineer</strong> Certification by passing the Red Hat Exam <em>EX294</em>.</p>
<p>It's the Version 8 RHCE Exam which quite differ from the "old" one by focussing on Ansible.</p>
<p>So during the performance-based Exam you have to create a lot of Ansible Playbooks and Roles to solve the Tasks. It's a tough Exam but fair and preparing for it improved my Ansible Skills a lot, even though I was using Ansible quite often within the last years.</p>
<p><strong>Summary</strong>: A Red Hat® Certified Engineer (RHCE®) is a Red Hat Certified System Administrator (RHCSA) who is ready to automate Red Hat® Enterprise Linux® tasks, integrate Red Hat emerging technologies, and apply learned automation skills for efficiency and innovation.</p>
<p>Source & Copyright: <a class="reference external" href="https://www.redhat.com">https://www.redhat.com</a></p>
<div class="section" id="skills">
<h2>Skills</h2>
<ul class="simple">
<li>Be able to perform all tasks expected of a Red Hat Certified System Administrator</li>
<li>Understand core components of Ansible</li>
<li>Install and configure an Ansible control node</li>
<li>Configure Ansible managed nodes</li>
<li>Script administration tasks</li>
<li>Create Ansible plays and playbooks</li>
<li>Use Ansible modules for system administration tasks</li>
<li>Work with roles</li>
<li>Use advanced Ansible features</li>
</ul>
<p>Source & Copyright: <a class="reference external" href="https://www.redhat.com">https://www.redhat.com</a></p>
</div>
<div class="section" id="certificate">
<h2>Certificate</h2>
<ul class="simple">
<li>Downloads<ul>
<li><a class="reference external" href="/certificates/Red_Hat_Certificate_RHCE-rhel_Dominik_Wombacher.pdf">Certificate</a> (PDF, 855.9K)</li>
<li><a class="reference external" href="/certificates/Red_Hat_Certificate_RHCE-rhel_Dominik_Wombacher.png">Badge</a> (PNG, 51.8K)</li>
</ul>
</li>
<li>Links<ul>
<li><a class="reference external" href="https://www.credly.com/badges/9199278c-2a14-4c19-8319-fcc8425c4c43/public_url">Verify Credly Badge</a>
(Archive: <a class="reference external" href="https://web.archive.org/web/20221230161242/https://www.credly.com/badges/9199278c-2a14-4c19-8319-fcc8425c4c43/public_url">[1]</a>,
<a class="reference external" href="https://archive.today/2022.12.30-161251/https://www.credly.com/badges/9199278c-2a14-4c19-8319-fcc8425c4c43/public_url">[2]</a>)</li>
<li><a class="reference external" href="https://rhtapps.redhat.com/certifications/badge/verify/YB2FOP3QSCV3PTZRLMFMRR54AUAEQU3CUPSQX2KSDXT6RW46LQ3XCZJWRJNV7ILTXVE4I6VB7OTCG4U5NQYTCNA62RUWOCM34WWBUYQ=">Verify Red Hat Badge</a>
(Archive: <a class="reference external" href="https://web.archive.org/web/20210609042432/https://rhtapps.redhat.com/certifications/badge/verify/YB2FOP3QSCV3PTZRLMFMRR54AUAEQU3CUPSQX2KSDXT6RW46LQ3XCZJWRJNV7ILTXVE4I6VB7OTCG4U5NQYTCNA62RUWOCM34WWBUYQ=">[1]</a>,
<a class="reference external" href="https://archive.today/2021.06.09-042435/https://rhtapps.redhat.com/certifications/badge/verify/YB2FOP3QSCV3PTZRLMFMRR54AUAEQU3CUPSQX2KSDXT6RW46LQ3XCZJWRJNV7ILTXVE4I6VB7OTCG4U5NQYTCNA62RUWOCM34WWBUYQ=">[2]</a>)</li>
<li><a class="reference external" href="https://rhtapps.redhat.com/verify/?certId=210-065-546">Verify Certificate</a></li>
</ul>
</li>
</ul>
</div>
Red Hat Certified System Administrator - Enterprise Linux 82021-05-06T00:00:00+02:002022-12-30T00:00:00+01:00Dominik Wombachertag:dominik.wombacher.cc,2021-05-06:/posts/red-hat-certified-system-administrator-rhel-8.html<!-- SPDX-FileCopyrightText: 2023 Dominik Wombacher <dominik@wombacher.cc> -->
<!-- -->
<!-- SPDX-License-Identifier: CC-BY-SA-4.0 -->
<p>I passed the Red Hat Exam <em>EX200</em> today and received my <strong>Red Hat Certified System Administrator</strong> Certification.</p>
<p>What I really like and what makes the difference is the fact that ... <a class="read-more" href="/posts/red-hat-certified-system-administrator-rhel-8.html"> [read more]</a></p><!-- SPDX-FileCopyrightText: 2023 Dominik Wombacher <dominik@wombacher.cc> -->
<!-- -->
<!-- SPDX-License-Identifier: CC-BY-SA-4.0 -->
<p>I passed the Red Hat Exam <em>EX200</em> today and received my <strong>Red Hat Certified System Administrator</strong> Certification.</p>
<p>What I really like and what makes the difference is the fact that all Red Hat Exams are performance-based.</p>
<p>That means, you get access to a virtual environment during your Exam and have to perform real-world tasks. There are no Multiple Choice Questions, you actually have to configure those System accordingly. SUSE did something similiar in the Past but change recently to question-based Exams.</p>
<p><strong>Summary</strong>: An IT professional who has earned the Red Hat Certified System Administrator (RHCSA®) is able to perform the core system administration skills required in Red Hat Enterprise Linux environments. The credential is earned after successfully passing the Red Hat Certified System Administrator (RHCSA) Exam (EX200).</p>
<p>Source & Copyright: <a class="reference external" href="https://www.redhat.com">https://www.redhat.com</a></p>
<div class="section" id="skills">
<h2>Skills</h2>
<ul class="simple">
<li>Understand and use essential tools for handling files, directories, command-line environments, and documentation</li>
<li>Create simple shell scripts</li>
<li>Operate running systems, including booting into different run levels, identifying processes, starting and stopping virtual machines, and controlling services</li>
<li>Configure local storage using partitions and logical volumes</li>
<li>Create and configure file systems and file system attributes, such as permissions, encryption, access control lists, and network file systems</li>
<li>Deploy, configure, and maintain systems, including software installation, update, and core services</li>
<li>Manage users and groups</li>
<li>Manage security, including basic firewall and SELinux configuration</li>
<li>Perform basic container management</li>
</ul>
<p>Source & Copyright: <a class="reference external" href="https://www.redhat.com">https://www.redhat.com</a></p>
</div>
<div class="section" id="certificate">
<h2>Certificate</h2>
<ul class="simple">
<li>Downloads<ul>
<li><a class="reference external" href="/certificates/Red_Hat_Certificate_RHCSA-rhel_Dominik_Wombacher.pdf">Certificate</a> (PDF, 855.9K)</li>
<li><a class="reference external" href="/certificates/Red_Hat_Certificate_RHCSA-rhel_Dominik_Wombacher.png">Badge</a> (PNG, 58.5K)</li>
</ul>
</li>
<li>Links<ul>
<li><a class="reference external" href="https://www.credly.com/badges/02db1256-0d47-4ca0-894f-0ed0efd78f9e/public_url">Verify Credly Badge</a>
(Archive: <a class="reference external" href="https://web.archive.org/web/20221230163107/https://www.credly.com/badges/02db1256-0d47-4ca0-894f-0ed0efd78f9e/public_url">[1]</a>,
<a class="reference external" href="https://archive.today/2022.12.30-161258/https://www.credly.com/badges/02db1256-0d47-4ca0-894f-0ed0efd78f9e/public_url">[2]</a>)</li>
<li><a class="reference external" href="https://rhtapps.redhat.com/certifications/badge/verify/YB2FOP3QSCV3PTZRLMFMRR54AUAEQU3CUPSQX2KSDXT6RW46LQ3T7ULZ55KZZ56SKO7EQ3ETTLYZQ4U5NQYTCNA62RUWOCM34WWBUYQ=">Verify Red Hat Badge</a>
(Archive: <a class="reference external" href="https://web.archive.org/web/20210609042613/https://rhtapps.redhat.com/certifications/badge/verify/YB2FOP3QSCV3PTZRLMFMRR54AUAEQU3CUPSQX2KSDXT6RW46LQ3T7ULZ55KZZ56SKO7EQ3ETTLYZQ4U5NQYTCNA62RUWOCM34WWBUYQ=">[1]</a>,
<a class="reference external" href="https://archive.today/2021.06.09-042646/https://rhtapps.redhat.com/certifications/badge/verify/YB2FOP3QSCV3PTZRLMFMRR54AUAEQU3CUPSQX2KSDXT6RW46LQ3T7ULZ55KZZ56SKO7EQ3ETTLYZQ4U5NQYTCNA62RUWOCM34WWBUYQ=">[2]</a>)</li>
<li><a class="reference external" href="https://rhtapps.redhat.com/verify/?certId=210-065-546">Verify Certificate</a></li>
</ul>
</li>
</ul>
</div>