Logging Monitoring

How to Automate Windows Server 2019 Provisioning with PowerShell and Terraform — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Automate Windows Server 2019 Provisioning with PowerShell and Terraform

Introduction: Automating Windows Server 2019 Provisioning Combining PowerShell and HashiCorp Terraform creates a powerful two-stage infrastructure-as-code pipeline for Windows Server 2019. Terraform handles the infrastructure layer—creating VMs in Hyper-V, VMware vSphere, or Azure, configuring networking and storage, and producing consistent, idempotent resource definitions in version-controlled .tf files. PowerShell handles the OS configuration layer—domain joining, feature […]

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Oracle Linux 8 — ruby:2.7 security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — ruby:2.7 security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2023-3821)

🟡 Medium   ⏱ 10–30 min  Last verified: 14 February 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-3821 Related CVEs: CVE-2023-28755 CVE-2023-28756 CVE-2021-33621 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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Common Problems 118493

Ubuntu 16.04 LTS – OOM killer terminates critical services – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 14 February 2021 Affected versions: Ubuntu 16.04 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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How to Use Amanda for Enterprise Backup on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Use Amanda for Enterprise Backup on Oracle Linux 8

Introduction Setting up use amanda for enterprise backup on oracle linux 8 on a Oracle Linux 8 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Use Amanda for Enterprise Backup on Oracle Linux 8, with all the commands you need, the SELinux and firewalld […]

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Common Problems 115506

RHEL 7 yum GPG Key Mismatch on Repository Metadata

🟡 Medium   ⏱ 5–30 min  Last verified: 14 February 2021 Affected versions: RHEL 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 & Hardening Related Errors & […]

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Common Problems 113443

Windows Server 2012 R2 — System volume marked dirty causes prolonged boot checks — Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 14 February 2021 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 and Configure Apache HTTP Server on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Install and Configure Apache HTTP Server 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 install and configure apache http server on ibm aix […]

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IBM AIX 7.1 — CVE-2020-4259 — vulnerability — patch and remediation guide — diagnosis and fix on IBM AIX 7.1

IBM AIX 7.1 — CVE-2020-4259 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 15–45 min  Last verified: 14 February 2021 Affected versions: IBM AIX 7.1 📖 ~4 min read  •  Source: NVD CVE-2020-4259, IBM Support Bulletin CVE: CVE-2020-4259 NVD summary: IBM Sterling File Gateway 2.2.0.0 through 6.0.3.1 could allow an authenticated user could manipulate cookie information and remove or add modules from the cookie […]

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Amazon Linux 2 — libjpeg-turbo — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — libjpeg-turbo — multiple vulnerabilities (9 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2-2023-2254 Related CVEs: CVE-2020-17541 CVE-2021-29390 CVE-2021-46822 CVE-2016-3616 CVE-2018-11212 CVE-2018-11213 CVE-2018-11214 CVE-2018-11813  +1 more Upstream summary: Libjpeg-turbo all version have a stack-based buffer overflow in the "transform" component. A remote attacker […]

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IBM AIX 7.2 — CVE-2021-29691 — vulnerability — patch and remediation guide — diagnosis and fix on IBM AIX 7.2

IBM AIX 7.2 — CVE-2021-29691 — vulnerability — patch and remediation guide

🟠 High   ⏱ 30–90 min  Last verified: 14 February 2021 Affected versions: IBM AIX 7.2 📖 ~4 min read  •  Source: NVD CVE-2021-29691, IBM Support Bulletin CVE: CVE-2021-29691 NVD summary: IBM Security Identity Manager 7.0.2 contains hard-coded credentials, such as a password or cryptographic key, which it uses for its own inbound authentication, outbound […]

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