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Alpine Linux edge — axel — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — axel — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 2.17.8-r0 📖 ~4 min read  •  Source: Alpine secdb entry — axel 2.17.8-r0 Related CVEs: CVE-2020-13614 Upstream summary: Alpine main repository for vedge ships axel 2.17.8-r0 which addresses CVE-2020-13614. Table of contents Symptom & Impact Environment […]

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Faster WordPress Sites With Gatsby — step-by-step Javascript tutorial on Progressive Robot

Faster WordPress Sites With Gatsby

Talk about the latest cutting\-edge web technologies, and you find some impressive names like `React.js`, `Vue.js`, `Next.js`, and so on. They have opened new gateways and approach to building websites, hence targeting the next billion internet users.

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Building an Apache Web Server through a Dockerfile — step-by-step Web Servers tutorial on Progressive Robot

Building an Apache Web Server through a Dockerfile

Hello, readers! In this article, we will be focusing on Building an Apache Web Server through a Dockerfile. So, let us begin! What is Apache Server? Apache Server is an open source web server to configure and host the web applications online and locally as well using localhost as the medium. It requires a lot […]

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How to Set Up MariaDB Galera Cluster on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Set Up MariaDB Galera Cluster on Debian 9

Introduction Deploying set up mariadb galera cluster on debian 9 on a Debian 9 Stretch machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Before […]

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Oracle Linux 8 — Kernel Issues — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Kernel Issues (8-KERNEL-ISSUES)

🟠 High   ⏱ 5–30 min  Last verified: 3 October 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: Oracle Bug OLRNB-ol8-issues-kernel 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 […]

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Common Problems 118513

Ubuntu 16.04 LTS – failed package configuration leaves dpkg in broken state – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 3 October 2020 Affected versions: Ubuntu 16.04 LTS 📖 ~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 […]

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Common Problems 118442

Ubuntu 16.04 Unattended Upgrades Keeps dpkg Busy

🟡 Medium   ⏱ 5–30 min  Last verified: 3 October 2020 📖 ~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 Set Up Podman on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Set Up Podman on Oracle Linux 8

Introduction Oracle Linux 8 ships with a stable, security-hardened base that makes deploying set up podman on oracle linux 8 both straightforward and auditable. This tutorial covers the complete procedure for how to Set Up Podman on Oracle Linux 8, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for […]

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Common Problems 115608

RHEL 7 service postfix Queue Grows Due to DNS Failure

🟡 Medium   ⏱ 5–30 min  Last verified: 3 October 2020 📖 ~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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