Security Hardening

Common Problems 118394

Ubuntu 16.04 LTS apt update fails with NO_PUBKEY errors

🟡 Medium   ⏱ 5–30 min  Last verified: 29 August 2019 Affected versions: 16.04 16.04.7 📖 ~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
Common Problems 117909

Ubuntu 18.04 LTS DNS Resolution Intermittently Fails

🟡 Medium   ⏱ 5–30 min  Last verified: 29 August 2019 Affected versions: 18.04 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 & […]

Read more
Common Problems 114926

chronyd Not Syncing Time with NTP Sources

🟡 Medium   ⏱ 5–30 min  Last verified: 29 August 2019 📖 ~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 […]

Read more
How to Install Netdata on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Install Netdata on FreeBSD 12

Introduction FreeBSD 12 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up install netdata on freebsd 12 on FreeBSD 12 follows the rc.conf/service(8) paradigm rather than systemd, which means enabling a service and configuring its startup options are done differently from any Linux distribution. This […]

Read more
Common Problems 112889

Windows Server 2016 — Server fails to boot after BCD corruption — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 29 August 2019 Affected versions: Windows Server 2016 📖 ~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
How to Configure Micro-Partitioning on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Configure Micro-Partitioning on IBM AIX 7.2

Introduction IBM AIX 7.2 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.2 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to configure micro-partitioning on ibm aix 7.2 on IBM AIX […]

Read more
FreeBSD 12 — id3lib — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — id3lib — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 29 August 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: id3lib — insecure temporary file creation Related CVEs: CVE-2007-4460 Upstream summary: Debian Bug report log reports: When tagging file $foo, a temporary copy of the file is created, and for […]

Read more
FreeBSD 12 — py24-django — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — py24-django — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 29 August 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: django — multiple vulnerabilities Related CVEs: CVE-2008-2302 CVE-2009-3695 CVE-2010-3082 Upstream summary: The Django project reports: Please reference CVE/URL list for details Table of contents Symptom & Impact Environment & Reproduction […]

Read more
CHAT