Kernel Drivers

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-2026-50270)

🟠 High   ⏱ 15–60 min  Last verified: 4 May 2026 Affected versions: Oracle Linux 10 📖 ~4 min read  •  Source: ELSA advisory ELSA-2026-50270 Related CVEs: CVE-2026-23270 CVE-2026-23278 CVE-2026-31402 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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Common Problems 116000

Ubuntu 26.04 LTS UFW Rules Block Container Traffic

🟠 High   ⏱ 5–30 min  Last verified: 3 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 Configure OpenVPN Server on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Configure OpenVPN Server on FreeBSD 15

Introduction How to Configure OpenVPN Server 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 packet filtering, […]

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How to Deploy a .NET Application on Oracle Linux 10 — step-by-step Oracle Linux 10 tutorial on Progressive Robot

How to Deploy a .NET Application on Oracle Linux 10

Introduction Oracle Linux 10 ships with a stable, security-hardened base that makes deploying deploy a .net application on oracle linux 10 both straightforward and auditable. This tutorial covers the complete procedure for how to Deploy a .NET Application on Oracle Linux 10, including dnf module streams where applicable, systemd unit management, and the firewalld rules […]

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Amazon Linux 2 — kernel-livepatch-4.14.355-275.572 — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — kernel-livepatch-4.14.355-275.572 — multiple vulnerabilities (9 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-2025-224 Related CVEs: CVE-2024-47757 CVE-2024-49882 CVE-2024-50036 CVE-2024-50264 CVE-2025-21796 CVE-2024-53103 CVE-2025-21753 CVE-2024-49995  +1 more Upstream summary: In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix potential oob read […]

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Common Problems 116062

Ubuntu 26.04 LTS – older kernels missing from GRUB menu – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 3 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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Oracle Linux 9 — kernel — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — kernel — vulnerability — patch and remediation guide (ELSA-2025-9302)

🟡 Medium   ⏱ 10–30 min  Last verified: 3 May 2026 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-9302 Related CVEs: CVE-2025-21919 CVE-2025-21883 CVE-2025-23150 CVE-2025-22104 CVE-2025-37738 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative […]

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How to Install Nginx on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Install Nginx on RHEL 10

Introduction RHEL 10 ships with a stable, security-hardened base that makes deploying install nginx both straightforward and auditable. This tutorial covers the complete procedure for how to Install Nginx on RHEL 10, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for network-facing services. Prerequisites You will need: a registered […]

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Common Problems 115964

Ubuntu 26.04 LTS – kernel updates fail because /boot is full – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 2 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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Oracle Linux 9 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide (ELSA-2025-20551)

🟠 High   ⏱ 15–60 min  Last verified: 2 May 2026 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-20551 Related CVEs: CVE-2024-36350 CVE-2024-36357 CVE-2024-49929 CVE-2024-57976 CVE-2024-58091 CVE-2025-21879 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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