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Common Problems 114412

RHEL 9 Systemd Service Stuck in Failed State

🟡 Medium   ⏱ 5–30 min  Last verified: 25 June 2022 📖 ~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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Common Problems 120482

Debian 11: unattended-upgrades stuck and blocking apt

🟡 Medium   ⏱ 5–30 min  Last verified: 23 June 2022 Affected versions: Debian 11 📖 ~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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How to Use cron and at Scheduling on IBM AIX 7.3 — step-by-step IBM AIX 7.3 tutorial on Progressive Robot

How to Use cron and at Scheduling on IBM AIX 7.3

Introduction IBM AIX 7.3 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 7.3 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to use cron and at scheduling on IBM AIX 7.3 […]

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How to Set Up LAPS (Local Administrator Password Solution) on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Set Up LAPS (Local Administrator Password Solution) on Windows Server 2012 R2

How to Set Up LAPS (Local Administrator Password Solution) on Windows Server 2012 R2 The Local Administrator Password Solution (LAPS) solves one of the most persistent security problems in Windows environments: the use of identical local administrator passwords across all computers. When every machine shares the same local admin password, an attacker who obtains that […]

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How to Install PHP 8.3 on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Install PHP 8.3 on RHEL 9

PHP is the dominant server-side scripting language powering WordPress, Laravel, Drupal, Magento, and thousands of other web applications. RHEL 9 ships with PHP 8.1 by default, but the Remi repository provides the latest PHP releases including PHP 8.3. PHP 8.3 introduced typed class constants, new json_validate() function, and further performance improvements over PHP 8.2. The […]

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How to Use Skopeo for Container Image Management on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Use Skopeo for Container Image Management on Debian 11

Introduction This guide explains how to Use Skopeo for Container Image Management on Debian 11 on Debian 11 Bullseye. Debian Bullseye 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 11 install […]

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How to Monitor Power System Hardware Faults on IBM AIX 7.3 — step-by-step IBM AIX 7.3 tutorial on Progressive Robot

How to Monitor Power System Hardware Faults on IBM AIX 7.3

Introduction IBM AIX 7.3 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 7.3 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to monitor power system hardware faults on IBM AIX 7.3 […]

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How to Configure Podman Rootless Containers on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Configure Podman Rootless Containers on Debian 11

Introduction This guide explains how to Configure Podman Rootless Containers on Debian 11 on Debian 11 Bullseye. Debian Bullseye 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 11 install with the […]

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How to Configure IPSec VPN on IBM AIX 7.3 — step-by-step IBM AIX 7.3 tutorial on Progressive Robot

How to Configure IPSec VPN on IBM AIX 7.3

Introduction IBM AIX 7.3 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 7.3 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to configure ipsec vpn on IBM AIX 7.3 with practical […]

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Ubuntu 18.04 — sssd — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — sssd — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 21 June 2022 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5067-1 Related CVEs: CVE-2018-10852 CVE-2018-16838 CVE-2019-3811 CVE-2021-3621 Upstream summary: Jakub Hrozek discovered that SSSD incorrectly handled file permissions. A local attacker could possibly use this issue to read the sudo […]

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