Linux

How to Configure Samba File Server on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Configure Samba File Server on Debian 13

Introduction Deploying configure samba file server on a Debian 13 Trixie machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Before you begin, ensure you […]

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Debian 13 — ruby-doorkeeper-openid-connect — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — ruby-doorkeeper-openid-connect — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 12 September 2025 Affected versions: Debian 13 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-9837 Upstream summary: Doorkeeper::OpenidConnect (aka the OpenID Connect extension for Doorkeeper) 1.4.x and 1.5.x before 1.5.4 has an open redirect via the redirect_uri field in an OAuth authorization request […]

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Common Problems 119584

Debian 13 – root filesystem fills rapidly from logs and cache growth

🟠 High   ⏱ 5–30 min  Last verified: 12 September 2025 Affected versions: Debian 13 Debian 13 (Trixie) Debian 13.x 📖 ~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 […]

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Oracle Linux 10 — yggdrasil-worker-package-manager — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 10

Oracle Linux 10 — yggdrasil-worker-package-manager — vulnerability — patch and remediation guide (ELSA-2026-5145)

🟠 High   ⏱ 15–60 min  Last verified: 12 September 2025 Affected versions: Oracle Linux 10 📖 ~4 min read  •  Source: ELSA advisory ELSA-2026-5145 Related CVEs: CVE-2025-61726 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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Oracle Linux 10 — tomcat9 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 10

Oracle Linux 10 — tomcat9 — vulnerability — patch and remediation guide (ELSA-2025-11332)

🟠 High   ⏱ 15–60 min  Last verified: 12 September 2025 Affected versions: Oracle Linux 10 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-11332 Related CVEs: CVE-2025-31650 CVE-2024-56337 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 9 — firefox — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — firefox — vulnerability — patch and remediation guide (ELSA-2025-2359)

🟠 High   ⏱ 15–60 min  Last verified: 12 September 2025 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-2359 Related CVEs: CVE-2025-1932 CVE-2025-1933 CVE-2025-1930 CVE-2025-1935 CVE-2025-1937 CVE-2025-1934 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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Arch Linux — bind — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — bind — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-202505-14 Related CVEs: CVE-2025-40775 CVE-2022-0667 CVE-2022-0635 CVE-2022-0396 CVE-2021-25220 CVE-2021-25216 CVE-2021-25215 CVE-2021-25214  +12 more Upstream summary: Type: denial of service. Status: Fixed. Affected: 9.20.8-2. Fixed in: 9.20.9-1. Group: AVG-2881. Table of […]

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How to Configure OpenDKIM with Postfix on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Configure OpenDKIM with Postfix on RHEL 10

Introduction RHEL 10 ships with a stable, security-hardened base that makes deploying configure opendkim with postfix both straightforward and auditable. This tutorial covers the complete procedure for how to Configure OpenDKIM with Postfix on RHEL 10, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for network-facing services. Prerequisites The […]

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Common Problems 119569

Debian 13 Slow I/O from Excessive systemd Journal Writes

🟡 Medium   ⏱ 5–30 min  Last verified: 12 September 2025 📖 ~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 References & Further […]

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How to Enable HTTPS with Let's Encrypt on Nginx Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Enable HTTPS with Let’s Encrypt on Nginx Debian 13

Introduction Deploying enable https with let’s encrypt on nginx debian 13 on a Debian 13 Trixie machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites […]

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