How To Install and Use Composer on Debian 9
In this tutorial, you’ll install and get started with Composer on a a Debian 9 system.
How to Configure Apache2 with mod_security on Debian 9
Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up configure apache2 with mod_security 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 […]
How to Set Up Open-iSCSI on Debian 9
Introduction How to Set Up Open-iSCSI 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. This […]
How to Configure AppArmor Profiles on Debian 9
Introduction Deploying configure apparmor profiles 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, […]
How to Harden Shared Memory on Debian 9
Introduction How to Harden Shared Memory 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. This […]
Debian 9 – KVM Bridge Networking Stops Passing Traffic – Host Bridge Repair
🟠 High ⏱ 5–30 min Last verified: 8 December 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 & […]
Debian 9 Release File Is Not Valid Yet During apt update
🟠 High ⏱ 5–30 min Last verified: 4 December 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 & […]
How to Install Amanda Network Backup on Debian 9
Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up install amanda network backup 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 […]
Debian 9: Nginx serves incomplete TLS certificate chain
🟠 High ⏱ 5–30 min Last verified: 28 November 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 & […]
How to Set Up Node Exporter for Server Metrics on Debian 9
Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up set up node exporter for server metrics 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 […]
