September 2020 - Page 7 of 66

How to Customize your Bash Prompt on a Linux VPS — step-by-step Linux tutorial on Progressive Robot

How to Customize your Bash Prompt on a Linux VPS

When you begin to spend much of your time on the command line, your shell environment becomes very important. One thing many people like to customize is their Bash prompt. In this article, we’ll discuss how you can personalize and add color to your Bash prompt so that the information you need is available always.

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How To Add a Footer To Your Webpage With HTML — step-by-step DevOps tutorial on Progressive Robot

How To Add a Footer To Your Webpage With HTML

In this tutorial, you’ll learn how to use HTML to add and style a footer on your website. A website footer is the final block of content at the bottom of a webpage. Footers can contain any type of HTML content, including text, images, and links.

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How to Configure Docker Daemon TLS Encryption on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Configure Docker Daemon TLS Encryption on RHEL 9

By default, the Docker daemon socket (/var/run/docker.sock) is a Unix socket accessible only locally. When the Docker daemon needs to be accessible over the network — for remote Docker management, CI/CD pipelines connecting to a remote build host, or Docker Swarm cluster communication — TLS encryption must be configured to prevent man-in-the-middle attacks and unauthorised […]

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An Introduction to Linux Permissions — step-by-step Linux tutorial on Progressive Robot

An Introduction to Linux Permissions

Linux is a multi-user OS that is based on the Unix concepts of file ownership and permissions to provide security at the file system level. If you are planning to improve your Linux skills, it is essential that you have a decent understanding of how these work. In this tutorial, we will cover how to view and understand Linux ownership and permissions.

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Oracle Linux 8 — java-1.8.0-openjdk — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — java-1.8.0-openjdk — security and stability fixes — required update (ELSA-2023-0208)

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-0208 Related CVEs: CVE-2023-21830 CVE-2023-21843 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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Common Problems 119028

Ubuntu 14.04 LTS LVM Resize Completed but Filesystem Size Unchanged

🟡 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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Common Problems 115578

RHEL 7 systemctl Reports Start Limit Hit for API Service

🟡 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 113992

DNF modular dependency conflict during package install

🟡 Medium   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: RHEL 10.0 📖 ~1 min read Table of contents Problem Summary Symptoms Diagnostics Root Cause Primary Fix Verification Prevention Rollback Automation Command Reference Escalation Related Notes Problem Summary Package install fails due to conflicting module streams. Symptoms dnf reports modular filtering and […]

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