Security Hardening

How to Set Up Privileged Access Management on Windows Server 2019 — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Set Up Privileged Access Management on Windows Server 2019

Introduction to Privileged Access Management Privileged Access Management (PAM) is a security practice and set of technologies designed to protect privileged accounts and limit the attack surface exposed by administrative access. On Windows Server 2019, PAM can be implemented using Microsoft Identity Manager (MIM) PAM, which is the enterprise-grade solution, or through a layered approach […]

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FreeBSD 12 — ru-gaim — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — ru-gaim — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 19 April 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: libgadu — multiple vulnerabilities Related CVEs: CVE-2004-0005 CVE-2004-0006 CVE-2004-0007 CVE-2004-0008 CVE-2004-0500 CVE-2004-0754 CVE-2004-0784 CVE-2004-0785  +12 more Upstream summary: Wojtek Kaniewski reports: Multiple vulnerabilities have been found in libgadu, a library […]

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FreeBSD 12 — mozilla-embedded — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — mozilla-embedded — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 19 April 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: firefox & mozilla — multiple vulnerabilities Related CVEs: CVE-2004-0762 CVE-2004-0765 CVE-2004-0904 CVE-2004-0905 CVE-2004-0908 CVE-2004-0909 CVE-2004-1156 CVE-2004-1157  +12 more Upstream summary: A Mozilla Foundation Security Advisory reports of multiple issues: Heap […]

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Common Problems 121678

Python SSL Module Errors After OpenSSL Library Changes

🟠 High   ⏱ 5–30 min  Last verified: 18 April 2020 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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Alpine Linux edge — oniguruma — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — oniguruma — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 6.9.5-r2 📖 ~4 min read  •  Source: Alpine secdb entry — oniguruma 6.9.5-r2 Related CVEs: CVE-2020-26159 Upstream summary: Alpine main repository for vedge ships oniguruma 6.9.5-r2 which addresses CVE-2020-26159. Table of contents Symptom & Impact Environment […]

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How to Manage systemd Services on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Manage systemd Services on Debian 9

Introduction Deploying manage systemd services on debian 9 on a Debian 9 Stretch machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Ensure Debian 9 […]

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Common Problems 121115

Debian 10 Kernel Upgrade Leaves Old Kernels Unmanaged

🟢 Low   ⏱ 5–30 min  Last verified: 18 April 2020 Affected versions: Debian 10 📖 ~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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IBM AIX 7.1 — CVE-2020-4412 — denial of service — patch and remediation guide — diagnosis and fix on IBM AIX 7.1

IBM AIX 7.1 — CVE-2020-4412 — denial of service — patch and remediation guide

🟡 Medium   ⏱ 15–45 min  Last verified: 18 April 2020 Affected versions: IBM AIX 7.1 📖 ~4 min read  •  Source: NVD CVE-2020-4412, IBM Support Bulletin CVE: CVE-2020-4412 NVD summary: The Spectrum Scale 4.2.0.0 through 4.2.3.21 and 5.0.0.0 through 5.0.4.3 file system component is affected by a denial of service security vulnerability. An attacker […]

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Gentoo Linux — app-office/ledger — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — app-office/ledger — multiple vulnerabilities (4 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-202004-05 Related CVEs: CVE-2017-12481 CVE-2017-12482 CVE-2017-2807 CVE-2017-2808 Upstream summary: Multiple vulnerabilities have been discovered in ledger. Please review the CVE identifiers referenced below for details. Table of contents Symptom & Impact Environment […]

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