Security Hardening

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

Oracle Linux 9 — golang — vulnerability — patch and remediation guide (ELSA-2026-0923)

🟠 High   ⏱ 15–60 min  Last verified: 23 September 2025 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2026-0923 Related CVEs: CVE-2025-61729 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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Debian 13 — qemu — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — qemu — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 23 September 2025 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2007-1320 CVE-2007-1321 CVE-2007-1322 CVE-2007-1366 CVE-2007-5729 CVE-2007-5730 CVE-2008-0928 CVE-2008-1945  +12 more Upstream summary: Multiple heap-based buffer overflows in the cirrus_invalidate_region function in the Cirrus VGA extension in QEMU 0.8.2, […]

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NetBSD 9.4 — git-gitk — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — git-gitk — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: NetBSD 9.4 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2025-27613 CVE-2025-27614 Upstream summary: pkgsrc audit-packages flagged git-gitk<2.50.1 for vulnerability class 'remote-file-write'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2025-27613 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step […]

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Windows Server 2016 — KB5061036 — multiple vulnerabilities (13 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2016

Windows Server 2016 — KB5061036 — multiple vulnerabilities (13 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Windows Server 2016 📖 ~4 min read  •  Source: Microsoft KB5061036 • MSRC update-guide entry Related CVEs: CVE-2025-33070 CVE-2025-32712 CVE-2025-32713 CVE-2025-32714 CVE-2025-32715 CVE-2025-32716 CVE-2025-32724 CVE-2025-33064  +5 more Affected components: Windows Server 2016 Microsoft summary: Use of uninitialized resource in Windows Netlogon allows […]

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How to Monitor MariaDB Performance with mytop on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Monitor MariaDB Performance with mytop on Debian 13

Introduction This guide explains how to Monitor MariaDB Performance with mytop on Debian 13 on Debian 13 Trixie. Debian Trixie uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 13 install with […]

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How to Enable Gzip and Brotli Compression in Nginx on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Enable Gzip and Brotli Compression in Nginx on RHEL 10

Introduction How to Enable Gzip and Brotli Compression in Nginx on RHEL 10 on RHEL 10 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting […]

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NetBSD 10.0 — cargo-nextest — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 10.0

NetBSD 10.0 — cargo-nextest — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: NetBSD 10.0 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Upstream summary: pkgsrc audit-packages flagged cargo-nextest<0.9.135 for vulnerability class 'unknown'. Reference: https://github.com/rust-openssl/rust-openssl/releases/tag/openssl-v0.10.78 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary […]

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How to Configure Suricata IDS on Oracle Linux 10 — step-by-step Oracle Linux 10 tutorial on Progressive Robot

How to Configure Suricata IDS on Oracle Linux 10

Introduction Setting up configure suricata ids on oracle linux 10 on a Oracle Linux 10 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Configure Suricata IDS on Oracle Linux 10, with all the commands you need, the SELinux and firewalld considerations to keep in […]

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FreeBSD 12 — caldera — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — caldera — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 22 September 2025 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: caldera — Remote Code Execution Related CVEs: CVE-2025-27364 Upstream summary: MITRE Caldera contributor report: In MITRE Caldera through 4.2.0 and 5.0.0 before 35bc06e, a Remote Code Execution (RCE) vulnerability was […]

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Debian 13 — freedink-dfarc — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — freedink-dfarc — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 22 September 2025 Affected versions: Debian 13 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2018-0496 Upstream summary: Directory traversal issues in the D-Mod extractor in DFArc and DFArc2 (as well as in RTsoft's Dink Smallwood HD / ProtonSDK version) before 3.14 allow an […]

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