Kernel Drivers

Amazon Linux 2023 — kernel-livepatch-6.1.29-50.88 — multiple vulnerabilities (5 CVEs) — patch and remediation guide

• October 22, 2023
• Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2023 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2023LIVEPATCH-2023-015 Related CVEs: CVE-2023-3609 CVE-2023-3776 CVE-2023-2156 CVE-2023-3090 CVE-2023-35788 Upstream summary: A use-after-free vulnerability in the Linux kernel's net/sched: cls_u32 component can be exploited to achieve local privilege escalation. If tcf_change_indev() […]

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How to Set Up IPsec VPN with Libreswan on Oracle Linux 9

• October 22, 2023
• Oracle Linux
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Introduction Oracle Linux 9 ships with a stable, security-hardened base that makes deploying set up ipsec vpn with libreswan on oracle linux 9 both straightforward and auditable. This tutorial covers the complete procedure for how to Set Up IPsec VPN with Libreswan on Oracle Linux 9, including dnf module streams where applicable, systemd unit management, […]

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How to Set Up GlusterFS Distributed Storage on Debian 12

• October 22, 2023
• Linux
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Introduction How to Set Up GlusterFS Distributed Storage on Debian 12 is a fundamental operation for any administrator maintaining a Debian 12 Bookworm server. Debian 12 Bookworm 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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Oracle Linux 9 – Common Problem 018 – Diagnosis and Fix

• October 21, 2023
• Linux
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🟡 Medium   ⏱ 5–30 min  Last verified: 21 October 2023 Affected versions: Oracle Linux 9 📖 ~3 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 Configure Apache with mod_security on CentOS Stream 9

• October 21, 2023
• CentOS
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Introduction How to Configure Apache with mod_security on CentOS Stream 9 on CentOS Stream 9 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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How to Deploy a Rust Web Application on Oracle Linux 9

• October 21, 2023
• Oracle Linux
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Introduction Oracle Linux 9 ships with a stable, security-hardened base that makes deploying deploy a rust web application on oracle linux 9 both straightforward and auditable. This tutorial covers the complete procedure for how to Deploy a Rust Web Application on Oracle Linux 9, including dnf module streams where applicable, systemd unit management, and the […]

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How to Set Up File Integrity Monitoring with AIDE on Debian 12

• October 21, 2023
• Linux
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Introduction Debian 12 Bookworm is built around the ethos of stability and free software. Setting up set up file integrity monitoring with aide on debian 12 on Bookworm leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Bookworm freeze. Follow each […]

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How to Install GitHub Actions Runner on Oracle Linux 9

• October 20, 2023
• Oracle Linux
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Introduction Oracle Linux 9 ships with a stable, security-hardened base that makes deploying install github actions runner on oracle linux 9 both straightforward and auditable. This tutorial covers the complete procedure for how to Install GitHub Actions Runner on Oracle Linux 9, including dnf module streams where applicable, systemd unit management, and the firewalld rules […]

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How to Set Up DRBD Block Replication on Debian 12

• October 20, 2023
• Linux
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Introduction Debian 12 Bookworm is built around the ethos of stability and free software. Setting up set up drbd block replication on debian 12 on Bookworm leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Bookworm freeze. Follow each step carefully […]

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Oracle Linux 9 – Common Problem 025 – Diagnosis and Fix

• October 19, 2023
• Linux
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🟡 Medium   ⏱ 5–30 min  Last verified: 19 October 2023 Affected versions: Oracle Linux 9 📖 ~3 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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