Debian 9

How to Install and Configure iptables on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Install and Configure iptables on Debian 9

Introduction Deploying install and configure iptables 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 […]

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How to Install and Configure Rundeck on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Install and Configure Rundeck on Debian 9

Introduction How to Install and Configure Rundeck on Debian 9 is a fundamental operation for any administrator maintaining a Debian 9 Stretch server. Debian 9 Stretch 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 9. […]

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How to Install OpenJDK 8 on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Install OpenJDK 8 on Debian 9

Introduction This guide explains how to Install OpenJDK 8 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 with the standard […]

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How to Set Up Bash Aliases and Environment Variables on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Set Up Bash Aliases and Environment Variables on Debian 9

Introduction This guide explains how to Set Up Bash Aliases and Environment Variables 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 […]

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How to Install and Configure Erlang on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Install and Configure Erlang on Debian 9

Introduction How to Install and Configure Erlang on Debian 9 is a fundamental operation for any administrator maintaining a Debian 9 Stretch server. Debian 9 Stretch 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 9. […]

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Common Problems 121634

Debian 9 – ext4 filesystem remounts read-only after I/O errors

🔴 Critical   ⏱ 5–30 min  Last verified: 8 February 2022 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 Set Up a PPTP VPN Server on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Set Up a PPTP VPN Server on Debian 9

Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up set up a pptp vpn server 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 […]

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Common Problems 121689

Debian 9 Firewall Rules Block Required Service Ports

🟠 High   ⏱ 5–30 min  Last verified: 7 January 2022 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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Установка Nginx на Debian 9 — step-by-step Linux tutorial on Progressive Robot

Установка Nginx на Debian 9

Nginx — один из самых популярных веб-серверов в мире. На веб-серверах Nginx размещены некоторые самые крупные сайты в Интернете с самым высоким уровнем трафика. Обычно он использует ресурсы эффективнее, чем Apache, и может использоваться как веб-сервер или…

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How to Set Up DRBD Block Replication on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Set Up DRBD Block Replication on Debian 9

Introduction Deploying set up drbd block replication 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 […]

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