chris

How To Install the Latest MySQL on Debian 9 — step-by-step Linux tutorial on Progressive Robot

How To Install the Latest MySQL on Debian 9

MySQL is a prominent open source database management system used to store and retrieve data for a wide variety of popular applications. MySQL is the M in the LAMP stack, a commonly used set of open source software that also includes Linux, the…

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Oracle Linux 8 — cyrus-imapd — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — cyrus-imapd — vulnerability — patch and remediation guide (ELSA-2020-4655)

🟡 Medium   ⏱ 10–30 min  Last verified: 14 October 2019 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-4655 Related CVEs: CVE-2019-19783 CVE-2019-18928 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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How to Implement Software Restriction Policies on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Implement Software Restriction Policies on Windows Server 2012 R2

How to Implement Software Restriction Policies on Windows Server 2012 R2 Software Restriction Policies (SRP) are the predecessor to AppLocker, providing application control capabilities on all editions of Windows Server 2012 R2—including Standard edition, which does not support AppLocker enforcement. SRP uses rules based on file hash, certificate, path, or network zone to allow or […]

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Arch Linux — mpv — vulnerability — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — mpv — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-201802-7 Related CVEs: CVE-2018-6360 Upstream summary: Type: arbitrary code execution. Status: Fixed. Affected: 1:0.27.0-6. Fixed in: 1:0.27.1-1. Group: AVG-605. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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Install C/GCC Compiler for Windows — step-by-step DevOps tutorial on Progressive Robot

Install C/GCC Compiler for Windows

The first step in learning any programming language is to have the required software installed in the system. In this tutorial, we will learn how to install C/GCC compiler in Windows. Source Code Editors Although, you may choose any basic text editor such as notepad for writing and editing source code of C, we recommend […]

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Common Problems 118396

Ubuntu 16.04 LTS – apt update fails because dpkg lock is held

🟠 High   ⏱ 5–30 min  Last verified: 13 October 2019 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 113514

Windows Server 2016 – Container DNS resolution fails on NAT network – Fix & Prevention (FIX-PREVENTION-2)

🟡 Medium   ⏱ 5–30 min  Last verified: 13 October 2019 Affected versions: Windows Server 2016 📖 ~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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