November 2020

Oracle Linux 8 — tigervnc — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — tigervnc — security and stability fixes — required update (ELSA-2023-2830)

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-2830 Related CVEs: CVE-2022-46340 CVE-2022-46343 CVE-2022-4283 CVE-2022-46341 CVE-2022-46344 CVE-2022-46342 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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Common Problems 117917

Ubuntu 18.04 Network Interface Missing After Kernel Upgrade

🟡 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 113609

Windows Server 2012 R2 – Password policy change blocked by domain functional level – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 02 April 2027 Affected versions: Windows Server 2012 R2 📖 ~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 […]

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Gentoo Linux — net-irc/weechat — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — net-irc/weechat — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202003-51 Related CVEs: CVE-2020-8955 CVE-2020-9759 CVE-2020-9760 Upstream summary: Multiple vulnerabilities have been discovered in WeeChat. Please review the CVE identifiers referenced below for details. Table of contents Symptom & Impact Environment & […]

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How to Set Up StrongSwan IKEv2 VPN on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Set Up StrongSwan IKEv2 VPN 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 set up strongswan ikev2 vpn on ibm aix 7.1 […]

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How to Set Up a Next.js 15 Application on Ubuntu 26.04 — step-by-step Linux tutorial on Progressive Robot

How to Deploy a Node.js Application with PM2 on Ubuntu 26.04

PM2 is a production process manager for Node.js. It keeps applications running after crashes, handles log management, enables zero-downtime reloads, and integrates with systemd for auto-start on boot. This guide deploys a Node.js application with PM2 and Nginx on Ubuntu 26.04 LTS. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS with Node.js […]

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How to Install Prometheus and Grafana on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Install Prometheus and Grafana on Oracle Linux 8

Introduction This tutorial demonstrates how to Install Prometheus and Grafana on Oracle Linux 8 on Oracle Linux 8. It is written for administrators who want a repeatable, well-explained walkthrough that goes beyond a bare command list and explains each configuration choice. Every command is tested against a freshly registered Oracle Linux 8 system with the […]

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Sysadmin eBook: Как заставить серверы работать — step-by-step Linux tutorial on Progressive Robot

Sysadmin eBook: Как заставить серверы работать

<$>[note] [label Загрузите полную электронную книгу!] Электронная книга «Как заставить серверы работать: практическое руководство по системному администрированию» в формате EPUB [Электронная книга *«Как заставить серверы работать: практическое…

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How To Use Node.js Modules with npm and package.json — step-by-step Javascript tutorial on Progressive Robot

How To Use Node.js Modules with npm and package.json

The Node.js Package Manager (npm) is the default and most popular package manager in the Node.js ecosystem, and is primarily used to install and manage external modules in a Node.js project. In this tutorial, you will manage packages with npm, first keeping track of modules with the package.json file, and then using the npm CLI tool to list your package dependencies, update your packages, uninstall your packages, and perform an audit to find security flaws in your packages.

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