Angular Material: Creating a Custom Theme
Here’s how to customize the colors used by Angular Material components.
How to Construct Classes and Define Objects in Python 3 – Complete Guide 2025–2026
Learning how to construct classes and define objects in Python 3 is one of the most powerful and frequently used skills at Progressive Robot — object-oriented programming (OOP) lets you create reusable blueprints (classes) and concrete instances (objects) that model real-world entities, encapsulate data and behavior, enable code reuse, improve maintainability, and build scalable applications (from simple scripts to enterprise systems, web APIs, data pipelines, games, and AI models).
openSUSE Tumbleweed — ocaml — multiple vulnerabilities (3 CVEs) — patch and remediation guide
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read • Source: SUSE security advisory Related CVEs: CVE-2017-9772 CVE-2018-9838 CVE-2015-8869 Upstream summary: Insufficient sanitisation in the OCaml compiler versions 4.04.0 and 4.04.1 allows external code to be executed with raised privilege in binaries marked as setuid, […]
Ubuntu 14.04 LTS disk fills rapidly due to runaway log growth
🟠 High ⏱ 5–30 min Last verified: 19 May 2026 Affected versions: 14.04 📖 ~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 […]
Ubuntu 18.04 LTS – failed fstab mount entry blocks startup target – Fix & Prevention
🟠 High ⏱ 5–30 min Last verified: 20 May 2026 Affected versions: Ubuntu 18.04 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 […]
FreeBSD 12 — xfs — vulnerability — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read • Source: FreeBSD VuXML VuXML topic: xfs — multiple vulnerabilities Related CVEs: CVE-2007-4568 Upstream summary: Matthieu Herrb reports: Problem Description: Several vulnerabilities have been identified in xfs, the X font server. The QueryXBitmaps and QueryXExtents protocol […]
How to Configure Nginx with PageSpeed Module on SLES 12
Introduction This tutorial covers How to Configure Nginx with PageSpeed Module on SLES 12 on SLES 12. SLES 12 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 12 system is up to date: […]
How to Use instfix to Check Installed Fixes on IBM AIX 7.1
Introduction IBM AIX 7.1 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 7.1 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to use instfix to check installed fixes on ibm aix […]
FreeBSD 12 — ko-netscape-communicator-linux — multiple vulnerabilities (3 CVEs) — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read • Source: FreeBSD VuXML VuXML topic: libpng stack-based buffer overflow and other code concerns Related CVEs: CVE-2004-0597 CVE-2004-0598 CVE-2004-0599 Upstream summary: Chris Evans has discovered multiple vulnerabilities in libpng, which can be exploited by malicious people […]
How to Set Up Windows Server Cluster-Aware Updating (CAU) on Windows Server 2016
Introduction Cluster-Aware Updating (CAU) is a Windows Server 2016 feature that automates the process of applying operating system updates to all nodes in a failover cluster while maintaining high availability. CAU orchestrates the patching sequence — draining workloads from each node, applying updates, restarting, bringing the node back online, and waiting for cluster health to […]
