June 2020 - Page 10 of 66

Common Problems 118586

Ubuntu 16.04 LTS – sudo breaks due to sudoers syntax error

🔴 Critical   ⏱ 5–30 min  Last verified: 20 May 2026 Affected versions: Ubuntu 16.04 LTS Ubuntu 16.04 Ubuntu 16.04.7 📖 ~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 […]

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Common Problems 115900

Ubuntu 26.04 LTS Repository Release File Not Valid Yet

🟠 High   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: Ubuntu 26.04 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 115392

yum fails with Cannot retrieve metalink

🟡 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 113390

Windows Server 2012 R2 – UAC prompts blocking automation and scheduled tasks – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 01 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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How to Install MySQL 8 on SLES 15 — step-by-step SUSE Linux Enterprise 15 tutorial on Progressive Robot

How to Install MySQL 8 on SLES 15

Introduction This tutorial covers How to Install MySQL 8 on SLES 15 on SLES 15. SLES 15 (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. Step 1 — Install MySQL zypper install -y mysql-server Step 2 — […]

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How to Use Snapshots with JFS2 on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Use Snapshots with JFS2 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 use snapshots with jfs2 on ibm aix 7.2 on […]

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Как установить и начать использовать PostgreSQL в Ubuntu 16.04 — step-by-step Linux tutorial on Progressive Robot

Как установить и начать использовать PostgreSQL в Ubuntu 16.04

Системы управления реляционными базами данных являются ключевым компонентом работы многих веб-сайтов и приложений. Они предоставляют средство структурированного хранения, организации и доступа к информации. PostgreSQL или Postgres – это система управления реляционной базой…

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Nginx Rewrite URL Rules Examples — step-by-step Web Servers tutorial on Progressive Robot

Nginx Rewrite URL Rules Examples

URL: https://www.progressiverobot.com/nginx-rewrite-url-rules/ NGINX rewrite rules are used to change entire or a part of the URL requested by a client. The main motive for changing an URL is to inform the clients that the resources they are looking for have changed its location apart from controlling the flow of executing pages in NGINX. The return […]

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Lazy Loading Scripts — step-by-step Javascript tutorial on Progressive Robot

Lazy Loading Scripts

An easy way to lazily load scripts on certain DOM events. In this example, we load the search script only on the user focus in a search input.

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openSUSE Tumbleweed — devscripts — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — devscripts — 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-2012-2240 CVE-2012-2241 CVE-2012-3500 Upstream summary: scripts/dscverify.pl in devscripts before 2.12.3 allows remote attackers to execute arbitrary commands via unspecified vectors related to "arguments to external commands." Table of contents […]

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