Boot Startup

Common Problems 119059

Ubuntu 14.04 LTS – kernel panic after package upgrade

🔴 Critical   ⏱ 5–30 min  Last verified: 23 December 2022 Affected versions: Ubuntu 14.04 LTS Ubuntu 14.04 Ubuntu 14.04.6 📖 ~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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How to Set Up Git via AIX Toolbox on IBM AIX 7.3 — step-by-step IBM AIX 7.3 tutorial on Progressive Robot

How to Set Up Git via AIX Toolbox on IBM AIX 7.3

Introduction IBM AIX 7.3 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 7.3 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to set up git via aix toolbox on IBM AIX […]

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How to Set Up DHCP Audit Logging on Windows Server 2022 — step-by-step Windows Server 2022 tutorial on Progressive Robot

How to Set Up DHCP Audit Logging on Windows Server 2022

How to Install Redis on Windows Server 2022 Redis is an in-memory data structure store used as a database, cache, message broker, and streaming engine. While Redis is natively a Linux application, it runs on Windows Server 2022 through several supported approaches: using Memurai (a Redis-compatible server built for Windows), running official Redis inside Windows […]

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Oracle Linux 9 — grub2 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — grub2 — vulnerability — patch and remediation guide (ELSA-2022-5099)

🟠 High   ⏱ 15–60 min  Last verified: 23 December 2022 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-5099 Related CVEs: CVE-2021-3695 CVE-2022-28737 CVE-2022-28734 CVE-2022-28736 CVE-2021-3696 CVE-2021-3697 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 112406

Windows Server 2019 — IIS WAS dependency failure prevents app pools loading — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 22 December 2022 Affected versions: Windows Server 2019 📖 ~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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How to Configure Parallel Environment (PE) MPI on IBM AIX 7.3 — step-by-step IBM AIX 7.3 tutorial on Progressive Robot

How to Configure Parallel Environment (PE) MPI on IBM AIX 7.3

Introduction IBM AIX 7.3 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 7.3 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to configure parallel environment (pe) mpi on IBM AIX 7.3 […]

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How to Use suma to Automate Fix Downloads on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Use suma to Automate Fix Downloads 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 suma to automate fix downloads on ibm aix […]

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How to Configure Kernel Tuning with vmo on IBM AIX 7.3 — step-by-step IBM AIX 7.3 tutorial on Progressive Robot

How to Configure Kernel Tuning with vmo on IBM AIX 7.3

Introduction IBM AIX 7.3 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 7.3 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to configure kernel tuning with vmo on IBM AIX 7.3 […]

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How to Harden Shared Memory on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Harden Shared Memory on Debian 9

Introduction How to Harden Shared Memory on Debian 9 is a fundamental operation for any administrator maintaining a Debian 9 Stretch server. Debian 9 Stretch 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 9. This […]

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How to Set Up Tripwire for File Integrity Monitoring on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Set Up Tripwire for File Integrity Monitoring on RHEL 9

File Integrity Monitoring (FIM) detects unauthorised modifications to critical system files — a key indicator of compromise that antivirus and network monitoring tools often miss. Tripwire is a battle-tested open-source FIM tool that creates a cryptographic hash database of your filesystem and alerts you when files are added, modified, or deleted. On RHEL 9, Tripwire […]

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