Logging Monitoring

How to Configure Prometheus Alerting Rules on Oracle Linux 9 — step-by-step Oracle Linux 9 tutorial on Progressive Robot

How to Configure Prometheus Alerting Rules on Oracle Linux 9

Introduction Setting up configure prometheus alerting rules on oracle linux 9 on a Oracle Linux 9 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Configure Prometheus Alerting Rules on Oracle Linux 9, with all the commands you need, the SELinux and firewalld considerations to […]

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Alpine Linux edge — stb — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — stb — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 0_git20231012-r0 📖 ~4 min read  •  Source: Alpine secdb entry — stb 0_git20231012-r0 Related CVEs: CVE-2023-43898 CVE-2023-45661 CVE-2023-45662 CVE-2023-45663 CVE-2023-45664 CVE-2023-45666 CVE-2023-45667 CVE-2023-45675 Upstream summary: Alpine community repository for vedge ships stb 0_git20231012-r0 which addresses CVE-2023-43898. […]

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Ubuntu 20.04 — faad2 — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — faad2 — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 3 May 2023 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6313-1 Related CVEs: CVE-2021-32272 CVE-2021-32273 CVE-2021-32274 CVE-2021-32276 CVE-2021-32277 CVE-2021-32278 CVE-2023-38857 CVE-2023-38858 Upstream summary: It was discovered that FAAD2 incorrectly handled certain inputs. If a user or an automated system were […]

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Oracle Linux 8 — .NET 7.0 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — .NET 7.0 — vulnerability — patch and remediation guide (ELSA-2023-6247)

🟡 Medium   ⏱ 10–30 min  Last verified: 3 May 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-6247 Related CVEs: CVE-2023-36799 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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Gentoo Linux — dev-lang/lua — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — dev-lang/lua — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202305-23 Related CVEs: CVE-2014-5461 CVE-2021-44647 CVE-2022-28805 Upstream summary: Multiple vulnerabilities have been discovered in Lua. Please review the CVE identifiers referenced below for details. Table of contents Symptom & Impact Environment & […]

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Oracle Linux 8 — microcode_ctl — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — microcode_ctl — vulnerability — patch and remediation guide (ELSA-2023-12723)

🟡 Medium   ⏱ 10–30 min  Last verified: 3 May 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-12723 Related CVEs: CVE-2022-40982 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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How to Configure Windows Server 2022 for Azure Hybrid Benefit — step-by-step Windows Server 2022 tutorial on Progressive Robot

How to Configure Windows Server 2022 for Azure Hybrid Benefit

How to Install Jenkins on Windows Server 2022 Jenkins is an open-source automation server widely used for continuous integration and continuous delivery (CI/CD) pipelines. Installing Jenkins on Windows Server 2022 gives your development teams a stable, enterprise-grade build server that integrates with source control, build tools, and deployment pipelines. This guide covers the complete installation […]

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Oracle Linux 9 — kernel security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — kernel security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2023-5069)

🟠 High   ⏱ 15–60 min  Last verified: 2 May 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-5069 Related CVEs: CVE-2023-1637 CVE-2023-3776 CVE-2023-21102 CVE-2023-4147 CVE-2023-3390 CVE-2023-31248 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 121589

Debian 9 sudo Command Not Found or Permission Denied

🟠 High   ⏱ 5–30 min  Last verified: 2 May 2023 Affected versions: Debian 9 📖 ~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 115136

RHEL 8 subscription-manager Shows Repositories Disabled Unexpectedly – RHEL 8 Post 149

🟡 Medium   ⏱ 5–30 min  Last verified: 2 May 2023 📖 ~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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