Logging Monitoring

Oracle Linux 8 — kvm_utils2 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — kvm_utils2 — vulnerability — patch and remediation guide (ELSA-2022-9862)

🟠 High   ⏱ 15–60 min  Last verified: 16 January 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-9862 Related CVEs: CVE-2022-0216 CVE-2022-26353 CVE-2021-4206 CVE-2021-4207 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches […]

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Oracle Linux 8 — php:7.4 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — php:7.4 — vulnerability — patch and remediation guide (ELSA-2022-6158)

🟡 Medium   ⏱ 10–30 min  Last verified: 16 January 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-6158 Related CVEs: CVE-2022-31625 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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IBM AIX 7.2 — CVE-2021-29723 — vulnerability — patch and remediation guide — diagnosis and fix on IBM AIX 7.2

IBM AIX 7.2 — CVE-2021-29723 — vulnerability — patch and remediation guide

🟠 High   ⏱ 30–90 min  Last verified: 16 January 2022 Affected versions: IBM AIX 7.2 📖 ~4 min read  •  Source: NVD CVE-2021-29723, IBM Support Bulletin CVE: CVE-2021-29723 NVD summary: IBM Sterling Secure Proxy 6.0.1, 6.0.2, 2.4.3.2, and 3.4.3.2 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive […]

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Oracle Linux 8 — container-tools:ol8 — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — container-tools:ol8 — security and stability fixes — required update (ELSA-2020-1379)

🟠 High   ⏱ 15–60 min  Last verified: 15 January 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-1379 Related CVEs: CVE-2020-8608 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 Install CodeIgniter on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Install CodeIgniter on CentOS Stream 9

Introduction This tutorial demonstrates how to Install CodeIgniter on CentOS Stream 9 on CentOS Stream 9. It is written for administrators who want a repeatable, well-explained walkthrough that goes beyond a bare command list and explains each configuration choice. Every command is tested against a freshly registered CentOS Stream 9 system with the default AppStream […]

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Common Problems 118921

Ubuntu 14.04 LTS apt/dpkg lock prevents updates

🟡 Medium   ⏱ 5–30 min  Last verified: 15 January 2022 Affected versions: 14.04 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 114970

Slow SSH login caused by reverse DNS lookup

🟡 Medium   ⏱ 5–30 min  Last verified: 15 January 2022 📖 ~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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FreeBSD 13 — py311-pymatgen — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — py311-pymatgen — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 15 January 2022 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: py-pymatgen — regular expression denial of service Related CVEs: CVE-2022-42964 Upstream summary: An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the pymatgen PyPI package, when an […]

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AlmaLinux 8 — po4a — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — po4a — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALEA-2021:4520 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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