Logging Monitoring

How to Configure Trusted Execution on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Configure Trusted Execution 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 trusted execution on ibm aix 7.2 on IBM […]

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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-2020-5663)

🟠 High   ⏱ 15–60 min  Last verified: 19 November 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-5663 Related CVEs: CVE-2019-19768 CVE-2020-10942 CVE-2020-11494 CVE-2020-8992 CVE-2020-9383 CVE-2020-8835 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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How to Set Up rsync Backup Jobs on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Set Up rsync Backup Jobs on Debian 9

Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up set up rsync backup jobs on debian 9 on Stretch leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Stretch freeze. Follow each step carefully […]

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Oracle Linux 8 — nodejs:12 — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — nodejs:12 — security and stability fixes — required update (ELSA-2020-4272)

🟡 Medium   ⏱ 10–30 min  Last verified: 18 November 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-4272 Related CVEs: CVE-2020-8252 CVE-2020-15095 CVE-2020-8116 CVE-2020-8201 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches […]

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Common Problems 121000

Disk Full on Root or /var Breaks Services

🔴 Critical   ⏱ 5–30 min  Last verified: 18 November 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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Amazon Linux 2 — kernel-livepatch-4.14.177-139.253 — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — kernel-livepatch-4.14.177-139.253 — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2LIVEPATCH-2020-023 Related CVEs: CVE-2020-1749 CVE-2019-19319 CVE-2020-10711 Upstream summary: A flaw was found in the Linux kernel's implementation of some networking protocols in IPsec, such as VXLAN and GENEVE tunnels over […]

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Common Problems 114998

RHEL 8 SSH Login Delays Caused by Reverse DNS Lookups

🟡 Medium   ⏱ 5–30 min  Last verified: 18 November 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 Set Up Nginx Load Balancing on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Set Up Nginx Load Balancing on Oracle Linux 8

Introduction How to Set Up Nginx Load Balancing on Oracle Linux 8 on Oracle Linux 8 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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How to Use AIX Trusted Boot on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Use AIX Trusted Boot 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 use aix trusted boot on ibm aix 7.1 on […]

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