Linux

AlmaLinux 8 — libzip — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — libzip — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2019:3735 Related CVEs: CVE-2019-11043 CVE-2025-1220 CVE-2025-14177 CVE-2025-14178 CVE-2025-14180 CVE-2025-1735 CVE-2025-6491 CVE-2023-0567  +12 more Upstream summary: PHP is an HTML-embedded scripting language commonly used with the Apache HTTP Server. Security Fix(es): * php: […]

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How to Install Deno on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Install Deno on Debian 13

Introduction How to Install Deno on Debian 13 is a fundamental operation for any administrator maintaining a Debian 13 Trixie server. Debian 13 Trixie ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian 12. This tutorial […]

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Common Problems 124183

Oracle Linux 10 – DNS resolution fails due to systemd-resolved and NetworkManager mismatch – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 19 August 2025 Affected versions: Oracle Linux 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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How to Install Jaeger for Distributed Tracing on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Install Jaeger for Distributed Tracing on RHEL 9

Jaeger is a distributed tracing platform originally developed by Uber that helps developers visualise request flows across microservices, identify latency bottlenecks, and diagnose failures in complex systems. Each request is represented as a trace composed of spans — timed operations — that are collected from instrumented services and assembled into a service map. This guide […]

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Common Problems 124166

Oracle Linux 10 – kdump service fails to reserve crashkernel memory – Fix & Prevention

🔴 Critical   ⏱ 5–30 min  Last verified: 19 August 2025 Affected versions: Oracle Linux 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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Common Problems 124144

Oracle Linux 10 – tuned profile changes are ignored after kernel update – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 19 August 2025 Affected versions: Oracle Linux 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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Common Problems 119560

Debian 13 OOM Killer Terminates Critical Services

🟡 Medium   ⏱ 5–30 min  Last verified: 19 August 2025 📖 ~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 Install Nomad on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Install Nomad on RHEL 10

Introduction How to Install Nomad on RHEL 10 on RHEL 10 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 configuration is reproducible and production-safe. […]

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Common Problems 119432

Debian 13 – Repository NO_PUBKEY Errors Break apt update – GPG Key Repair

🟠 High   ⏱ 5–30 min  Last verified: 19 August 2025 Affected versions: Debian 13 (Trixie) 📖 ~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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Common Problems 116536

Ubuntu 24.04 LTS – Suspend resumes to black screen on GNOME – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 19 August 2025 Affected versions: Ubuntu 24.04 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 […]

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