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How To Understand the Chef Configuration Environment on a VPS — step-by-step Programming tutorial on Progressive Robot

How To Understand the Chef Configuration Environment on a VPS

Chef is a popular configuration management system that allows you to deploy predictable, complex environments to machines within your organization. In this article, we will discuss the Chef configuration environment and organizational structure at a high level so that you will be familiar with the components that make up a Chef configuration system.

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How to Audit Linux Security with Lynis on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Audit Linux Security with Lynis on RHEL 8

Lynis is a battle-tested open-source security auditing tool that scans your Linux system, identifies misconfigurations, and produces a prioritised list of hardening suggestions. On RHEL 8, it is available through the EPEL 8 repository and runs entirely from the command line without requiring a daemon or persistent service. After each scan, Lynis assigns a hardening […]

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Common Problems 118600

Ubuntu 16.04 external monitor not detected

🟡 Medium   ⏱ 5–30 min  Last verified: 11 March 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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Common Problems 117921

Ubuntu 18.04 Broken Dependencies and Held Packages

🟡 Medium   ⏱ 5–30 min  Last verified: 11 March 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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openSUSE Tumbleweed — libwinpr2 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — libwinpr2 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2016:2506-1 (see also SUSE bugzilla) Related CVEs: CVE-2014-0250 CVE-2014-0791 Upstream summary: Multiple integer overflows in client/X11/xf_graphics.c in FreeRDP allow remote attackers to have an unspecified impact via the width and height to […]

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How to Set Up rsync Backup Jobs on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Set Up rsync Backup Jobs on Debian 10

Introduction How to Set Up rsync Backup Jobs on Debian 10 is a fundamental operation for any administrator maintaining a Debian 10 Buster server. Debian 10 Buster ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian […]

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FreeBSD 12 — imlib — multiple vulnerabilities (12 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — imlib — multiple vulnerabilities (12 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 11 March 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: imlib2 — denial of service vulnerabilities Related CVEs: CVE-2004-0802 CVE-2004-0817 CVE-2004-1025 CVE-2004-1026 CVE-2006-4806 CVE-2006-4807 CVE-2006-4808 CVE-2006-4809  +4 more Upstream summary: Enlightenment reports: GIF loader: Fix segv on images without colormap […]

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How to Configure Network Authentication Service on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Configure Network Authentication Service on IBM AIX 7.2

Introduction IBM AIX 7.2 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.2 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to configure network authentication service on ibm aix 7.2 on […]

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