Kernel Drivers

How to Set Up Two-Factor Authentication (2FA) for SSH on Ubuntu 26.04 — step-by-step Linux tutorial on Progressive Robot

How to Audit Linux Security with Lynis on Ubuntu 26.04

Lynis is an open-source security auditing tool for Linux systems. It performs in-depth security scans of the system configuration, checks for vulnerabilities, and provides detailed hardening recommendations with a scored report. This guide runs a Lynis audit on Ubuntu 26.04 LTS. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS A user with […]

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How to Install Xdebug for PHP on Oracle Linux 10 — step-by-step Oracle Linux 10 tutorial on Progressive Robot

How to Install Xdebug for PHP on Oracle Linux 10

Introduction How to Install Xdebug for PHP on Oracle Linux 10 on Oracle Linux 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 […]

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Oracle Linux 10 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 10

Oracle Linux 10 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide (ELSA-2026-50112)

🟠 High   ⏱ 15–60 min  Last verified: 17 May 2026 Affected versions: Oracle Linux 10 📖 ~4 min read  •  Source: ELSA advisory ELSA-2026-50112 Related CVEs: CVE-2018-1000204 CVE-2025-38234 CVE-2025-38276 CVE-2025-38357 CVE-2025-40034 CVE-2025-40075 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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Common Problems 115941

Ubuntu 26.04 LTS – system drops to grub rescue after update – Fix & Prevention

🔴 Critical   ⏱ 5–30 min  Last verified: 16 May 2026 Affected versions: Ubuntu 26.04 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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How to Install Cockpit Web Console on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Install Cockpit Web Console on RHEL 10

Introduction How to Install Cockpit Web Console 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 […]

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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-2026-50257)

🟠 High   ⏱ 15–60 min  Last verified: 16 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2026-50257 Related CVEs: CVE-2026-43284 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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AlmaLinux 10 — kernel — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 10

AlmaLinux 10 — kernel — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 10 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2026:A010 Related CVEs: CVE-2026-46300 CVE-2026-46333 CVE-2026-43284 CVE-2026-23270 CVE-2026-31402 CVE-2026-31419 CVE-2026-31431 CVE-2025-39766  +12 more Upstream summary: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * […]

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Common Problems 114101

RHEL 10 – auditd service fails because audit partition is full – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 15 May 2026 Affected versions: RHEL 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 115953

Fix GNOME Shell High CPU Usage on Ubuntu 26.04 LTS

🟡 Medium   ⏱ 5–30 min  Last verified: 14 May 2026 Affected versions: 26.04 📖 ~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 […]

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How to Set Up S3FS FUSE Mount on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Set Up S3FS FUSE Mount on FreeBSD 15

Introduction How to Set Up S3FS FUSE Mount on FreeBSD 15 is a core administration task for any FreeBSD 15 server operator. FreeBSD 15 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for […]

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