Package Management

FreeBSD 12 — nexus2-oss — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — nexus2-oss — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 28 August 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: nexus2-oss — Apache ActiveMQ JMX vulnerability Related CVEs: CVE-2019-15893 CVE-2019-16530 CVE-2019-5475 CVE-2020-13920 CVE-2020-15012 Upstream summary: Sonatype reports: CVE-2020-13920: Apache ActiveMQ JMX is vulnerable to a MITM attack Table of contents […]

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How to Run Docker on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Run Docker on IBM AIX 7.1

Introduction IBM AIX 7.1 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 7.1 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to run docker on ibm aix 7.1 on IBM AIX […]

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How to Install HAProxy on SLES 12 — step-by-step SUSE Linux Enterprise 12 tutorial on Progressive Robot

How to Install HAProxy on SLES 12

Introduction This tutorial covers How to Install HAProxy on SLES 12 on SLES 12. SLES 12 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 12 system is up to date: zypper refresh && […]

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How to Configure Network Interfaces on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Configure Network Interfaces on IBM AIX 7.1

Introduction IBM AIX 7.1 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 7.1 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to configure network interfaces on ibm aix 7.1 on IBM […]

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Oracle Linux 8 — resource-agents — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — resource-agents — vulnerability — patch and remediation guide (ELSA-2020-5947)

🟠 High   ⏱ 15–60 min  Last verified: 28 August 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-5947 Related CVEs: CVE-2020-11078 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 Set Up a Certificate Authority with OpenSSL on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Set Up a Certificate Authority with OpenSSL on Debian 9

Introduction This guide explains how to Set Up a Certificate Authority with OpenSSL on Debian 9 on Debian 9 Stretch. Debian Stretch 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 9 […]

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Oracle Linux 8 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide (ELSA-2020-5792)

🟠 High   ⏱ 15–60 min  Last verified: 28 August 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-5792 Related CVEs: CVE-2020-15780 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 Set Up TimescaleDB on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Set Up TimescaleDB on Debian 10

Introduction Deploying set up timescaledb on debian 10 on a Debian 10 Buster 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 Before you begin, […]

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Common Problems 114983

RHEL 8 kernel update boots without required storage driver

🟡 Medium   ⏱ 5–30 min  Last verified: 27 August 2020 📖 ~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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How to Configure Password Policies on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Configure Password Policies 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 password policies on ibm aix 7.2 on IBM […]

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