2020

Oracle Linux 8 — dotnet5.0 security and bugfix update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — dotnet5.0 security and bugfix update (ELSA-2021-0094)

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-0094 Related CVEs: CVE-2021-1723 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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Common Problems 118132

Ubuntu 18.04 LTS – CPU spikes caused by runaway logrotate postrotate script

🟡 Medium   ⏱ 5–30 min  Last verified: 20 May 2026 Affected versions: Ubuntu 18.04 LTS Ubuntu 18.04 Ubuntu 18.04.6 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention […]

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Common Problems 115583

RHEL 7 – Yum Transaction Check Error from Mixed Repositories

🟡 Medium   ⏱ 5–30 min  Last verified: 20 May 2026 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors & Cross-Refs References & Further […]

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Common Problems 114899

RHEL 8 – RPM Database Lock Prevents Package Operations

🟡 Medium   ⏱ 5–30 min  Last verified: 19 May 2026 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors & Cross-Refs References & Further […]

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How to Configure Buildah on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Configure Buildah on Oracle Linux 8

Introduction Setting up configure buildah on oracle linux 8 on a Oracle Linux 8 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Configure Buildah on Oracle Linux 8, with all the commands you need, the SELinux and firewalld considerations to keep in mind, and […]

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So installieren Sie Nginx auf Ubuntu 18.04 — step-by-step Linux tutorial on Progressive Robot

So installieren Sie Nginx auf Ubuntu 18.04

Nginx ist einer der beliebtesten Webserver der Welt und verantwortlich für das Hosting einiger der größten und verkehrsreichsten Webseiten im Internet. Er ist in den meisten Fällen ressourcenfreundlicher als Apache und kann als Webserver oder Umkehrproxy eingesetzt werden. In…

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Oracle Linux 8 — virt:ol — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — virt:ol — vulnerability — patch and remediation guide (ELSA-2020-4059)

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-4059 Related CVEs: CVE-2020-10756 CVE-2020-14364 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]

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