Linux

How to Configure Jenkins with HTTPS via Nginx on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Configure Jenkins with HTTPS via Nginx on RHEL 10

Introduction RHEL 10 ships with a stable, security-hardened base that makes deploying configure jenkins with https via nginx both straightforward and auditable. This tutorial covers the complete procedure for how to Configure Jenkins with HTTPS via Nginx on RHEL 10, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for […]

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

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

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2024:4420 Related CVEs: CVE-2024-4467 CVE-2022-40284 CVE-2023-3354 CVE-2020-35517 CVE-2025-11234 CVE-2025-49133 CVE-2024-3446 CVE-2024-7383  +12 more Upstream summary: Kernel-based Virtual Machine (KVM) offers a full virtualization solution for Linux on numerous hardware platforms. The virt:rhel […]

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Ubuntu 16.04 — samba — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — samba — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 21 September 2025 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7826-2 Related CVEs: CVE-2025-9640 CVE-2025-10230 https://launchpad.net/bugs/2115450 CVE-2022-3437 CVE-2022-42898 CVE-2022-45141 CVE-2023-34966 CVE-2021-44142  +12 more Upstream summary: USN-7826-1 fixed vulnerabilities in Samba. This update provides the corresponding update for Ubuntu 14.04 LTS, […]

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Alpine Linux 3.20 — mosquitto — multiple vulnerabilities (14 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.20

Alpine Linux 3.20 — mosquitto — multiple vulnerabilities (14 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.20 / fixed in 2.0.8-r0 📖 ~4 min read  •  Source: Alpine secdb entry — mosquitto 2.0.8-r0 Related CVEs: CVE-2021-34432 CVE-2023-28366 CVE-2023-0809 CVE-2023-3592 CVE-2021-28166 CVE-2019-11779 CVE-2018-12546 CVE-2018-12550  +6 more Upstream summary: Alpine main repository for vv3.20 ships mosquitto 2.0.8-r0 which […]

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Oracle Linux 8 — grafana-pcp — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — grafana-pcp — vulnerability — patch and remediation guide (ELSA-2026-1518)

🟠 High   ⏱ 15–60 min  Last verified: 21 September 2025 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2026-1518 Related CVEs: CVE-2025-61729 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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How to Back Up MariaDB with mysqldump on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Back Up MariaDB with mysqldump on Debian 13

Introduction How to Back Up MariaDB with mysqldump 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 […]

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Gentoo Linux — sys-auth/pam_u2f — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — sys-auth/pam_u2f — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202501-04 Related CVEs: CVE-2025-23013 CVE-2021-31924 Upstream summary: Multiple vulnerabilities have been discovered in Yubico pam-u2f. Please review the CVE identifiers referenced below for details. Table of contents Symptom & Impact Environment & […]

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Common Problems 127062

CentOS Stream 10 – Common Problem 135 – Diagnosis and Fix

🟠 High   ⏱ 5–30 min  Last verified: 20 September 2025 Affected versions: CentOS Stream 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 124187

Oracle Linux 10 tuned Profile Change Causes Latency Spikes

🟡 Medium   ⏱ 5–30 min  Last verified: 20 September 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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