Operations

Oracle Linux 9 — libxml2 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — libxml2 — vulnerability — patch and remediation guide (ELSA-2023-4349)

🟡 Medium   ⏱ 10–30 min  Last verified: 8 July 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-4349 Related CVEs: CVE-2023-29469 CVE-2023-28484 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]

Read more
Alpine Linux 3.18 — dotnet7-runtime — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.18

Alpine Linux 3.18 — dotnet7-runtime — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 7.0.9-r0 📖 ~4 min read  •  Source: Alpine secdb entry — dotnet7-runtime 7.0.9-r0 Related CVEs: CVE-2023-33127 CVE-2023-33170 CVE-2023-24895 CVE-2023-24897 CVE-2023-24936 CVE-2023-29331 CVE-2023-29337 CVE-2023-32032  +12 more Upstream summary: Alpine community repository for vv3.18 ships dotnet7-runtime 7.0.9-r0 which […]

Read more
How to Set Up Performance Monitoring on Windows Server 2022 — step-by-step Windows Server 2022 tutorial on Progressive Robot

How to Set Up Performance Monitoring on Windows Server 2022

How to Install and Configure Tomcat on Windows Server 2022 Apache Tomcat is the standard servlet container for Java web applications. It implements the Jakarta Servlet, Jakarta Server Pages (JSP), and Jakarta WebSocket specifications, making it the deployment target for WAR files built with Spring, Struts, or plain servlets. This guide walks through installing Tomcat […]

Read more
Alpine Linux 3.18 — apr — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.18

Alpine Linux 3.18 — apr — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 1.7.5-r0 📖 ~4 min read  •  Source: Alpine secdb entry — apr 1.7.5-r0 Related CVEs: CVE-2023-49582 CVE-2022-24963 CVE-2022-25147 CVE-2022-28331 CVE-2021-35940 Upstream summary: Alpine main repository for vv3.18 ships apr 1.7.5-r0 which addresses CVE-2023-49582. Table of contents […]

Read more
Oracle Linux 9 — skopeo — security and stability fixes — required update — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — skopeo — security and stability fixes — required update (ELSA-2024-2549)

🟡 Medium   ⏱ 10–30 min  Last verified: 7 July 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2024-2549 Related CVEs: CVE-2024-28180 CVE-2024-24786 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]

Read more
AlmaLinux 8 — protobuf-c — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — protobuf-c — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2023:6944 Related CVEs: CVE-2022-48468 Upstream summary: The protobuf-c packages provide C bindings for Google's Protocol Buffers. Security Fix(es): * protobuf-c: unsigned integer overflow in parse_required_member (CVE-2022-48468) For more details about the security […]

Read more
How to Set Up MySQL with SSL on Oracle Linux 9 — step-by-step Oracle Linux 9 tutorial on Progressive Robot

How to Set Up MySQL with SSL on Oracle Linux 9

Introduction This tutorial demonstrates how to Set Up MySQL with SSL on Oracle Linux 9 on Oracle Linux 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 Oracle Linux 9 system with […]

Read more
Common Problems 120115

Debian 12 MariaDB Fails Startup Due to InnoDB Issues

🔴 Critical   ⏱ 5–30 min  Last verified: 7 July 2023 Affected versions: Debian 12 📖 ~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 & […]

Read more
IBM AIX 7.1 — CVE-2023-29260 — vulnerability — patch and remediation guide — diagnosis and fix on IBM AIX 7.1

IBM AIX 7.1 — CVE-2023-29260 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 15–45 min  Last verified: 7 July 2023 Affected versions: IBM AIX 7.1 📖 ~4 min read  •  Source: NVD CVE-2023-29260, IBM Support Bulletin CVE: CVE-2023-29260 NVD summary: IBM Sterling Connect:Express for UNIX 1.5 is vulnerable to server-side request forgery (SSRF). This may allow an authenticated attacker to send unauthorized requests from […]

Read more
Debian 12 — libmatroska — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — libmatroska — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 7 July 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2015-8792 Upstream summary: The KaxInternalBlock::ReadData function in libMatroska before 1.4.4 allows context-dependent attackers to obtain sensitive information from process heap memory via crafted EBML lacing, which triggers an […]

Read more
CHAT