Debian 9

How to Configure DNSSEC Validation on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Configure DNSSEC Validation on Debian 9

Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up configure dnssec validation on debian 9 on Stretch leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Stretch freeze. Follow each step carefully and the […]

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Debian 9 — twig — vulnerability — patch and remediation guide — diagnosis and fix on Debian 9

Debian 9 — twig — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 27 April 2020 Affected versions: Debian 9 (stretch) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-9942 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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Common Problems 121669

Debian 9 Locale Misconfiguration Causes Perl Warning

🟢 Low   ⏱ 5–30 min  Last verified: 26 April 2020 Affected versions: Debian 9 📖 ~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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Cómo instalar el servidor web de Apache en Debian 9 — step-by-step Linux tutorial on Progressive Robot

Cómo instalar el servidor web de Apache en Debian 9

El servidor HTTP Apache es el más usado del mundo. Ofrece muchas características potentes, entre las que se incluyen módulos que se cargan de forma dinámica, una sólida compatibilidad con medios y amplia integración con otras herramientas de software populares. En esta…

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Debian 9 — file — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 9

Debian 9 — file — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 24 April 2020 Affected versions: Debian 9 (stretch) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-1000249 CVE-2019-18218 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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How to Configure Zabbix Agent on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Configure Zabbix Agent on Debian 9

Introduction Deploying configure zabbix agent on debian 9 on a Debian 9 Stretch 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, […]

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How to Configure Pyenv for Multiple Python Versions on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Configure Pyenv for Multiple Python Versions on Debian 9

Introduction This guide explains how to Configure Pyenv for Multiple Python Versions on Debian 9 on Debian 9 Stretch. Debian Stretch 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 9 install […]

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Common Problems 121678

Python SSL Module Errors After OpenSSL Library Changes

🟠 High   ⏱ 5–30 min  Last verified: 18 April 2020 Affected versions: Debian 9 📖 ~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 Manage systemd Services on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Manage systemd Services on Debian 9

Introduction Deploying manage systemd services on debian 9 on a Debian 9 Stretch 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 Ensure Debian 9 […]

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Debian 9 — cyrus-imapd — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 9

Debian 9 — cyrus-imapd — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 18 April 2020 Affected versions: Debian 9 (stretch) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-11356 CVE-2019-19783 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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