Kernel Drivers

Amazon Linux 2 — kernel-livepatch-5.10.112-108.499 — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — kernel-livepatch-5.10.112-108.499 — 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-2022-088 Related CVEs: CVE-2022-34918 CVE-2022-1966 CVE-2022-1786 Upstream summary: A heap buffer overflow flaw was found in the Linux kernel's Netfilter subsystem in the way a user provides incorrect input of […]

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How to Configure sudo for Non-Root Users on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Configure sudo for Non-Root Users on Debian 11

Introduction How to Configure sudo for Non-Root Users on Debian 11 is a fundamental operation for any administrator maintaining a Debian 11 Bullseye server. Debian 11 Bullseye 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 […]

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How to Configure WinRM Security on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Configure WinRM Security on Windows Server 2012 R2

How to Configure WinRM Security on Windows Server 2012 R2 Windows Remote Management (WinRM) is the Microsoft implementation of the WS-Management protocol and is the foundation of PowerShell remoting, CIM sessions, Server Manager remote management, and many automation frameworks. WinRM is powerful, but an improperly configured WinRM listener exposes the server to credential theft, unauthorized […]

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How to Configure Redis Cluster on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Configure Redis Cluster on Debian 11

Introduction How to Configure Redis Cluster on Debian 11 is a fundamental operation for any administrator maintaining a Debian 11 Bullseye server. Debian 11 Bullseye 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 11. This […]

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How to Set Up a Python FastAPI Application on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Set Up a Python FastAPI Application on Debian 11

Introduction How to Set Up a Python FastAPI Application on Debian 11 is a fundamental operation for any administrator maintaining a Debian 11 Bullseye server. Debian 11 Bullseye 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 […]

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How to Profile CPU with tprof on IBM AIX 7.3 — step-by-step IBM AIX 7.3 tutorial on Progressive Robot

How to Profile CPU with tprof 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 profile cpu with tprof on IBM AIX 7.3 with […]

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How to Install and Configure ufw Firewall on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Install and Configure ufw Firewall on Debian 11

Introduction This guide explains how to Install and Configure ufw Firewall 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 […]

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

Oracle Linux 8 — Unbreakable Enterprise kernel-container — vulnerability — patch and remediation guide (ELSA-2022-9486)

🟠 High   ⏱ 15–60 min  Last verified: 3 June 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-9486 Related CVEs: CVE-2022-21166 CVE-2022-21123 CVE-2022-21125 CVE-2022-21127 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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Oracle Linux 8 — Unbreakable Enterprise kernel-container — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Unbreakable Enterprise kernel-container — vulnerability — patch and remediation guide (ELSA-2022-9591)

🟠 High   ⏱ 15–60 min  Last verified: 3 June 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-9591 Related CVEs: CVE-2022-23816 CVE-2022-1652 CVE-2022-29901 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification […]

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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-2022-9012)

🟠 High   ⏱ 15–60 min  Last verified: 3 June 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-9012 Related CVEs: CVE-2021-0920 CVE-2021-4155 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]

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