Backup Recovery

Common Problems 117035

Ubuntu 22.04 LTS – NGINX fails config test due to duplicate server_name – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 19 November 2023 Affected versions: Ubuntu 22.04 LTS 📖 ~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 […]

Read more
Common Problems 115040

Rsyslog not writing expected logs to file

🟡 Medium   ⏱ 5–30 min  Last verified: 19 November 2023 📖 ~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 […]

Read more
How to Configure OpenVPN Server on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Configure OpenVPN Server on Debian 12

Introduction How to Configure OpenVPN Server on Debian 12 is a fundamental operation for any administrator maintaining a Debian 12 Bookworm server. Debian 12 Bookworm 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 12. This […]

Read more
How to Enable AppArmor Mandatory Access Control on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Enable AppArmor Mandatory Access Control on Debian 12

Introduction How to Enable AppArmor Mandatory Access Control on Debian 12 is a fundamental operation for any administrator maintaining a Debian 12 Bookworm server. Debian 12 Bookworm 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 […]

Read more
How to Set Up Swap Space on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Set Up Swap Space on CentOS Stream 9

Introduction CentOS Stream 9 ships with a stable, security-hardened base that makes deploying set up swap space on centos stream 9 both straightforward and auditable. This tutorial covers the complete procedure for how to Set Up Swap Space on CentOS Stream 9, including dnf module streams where applicable, systemd unit management, and the firewalld rules […]

Read more
Common Problems 120186

Debian 12 Cron Job Not Running at Scheduled Time

🟡 Medium   ⏱ 5–30 min  Last verified: 17 November 2023 Affected versions: Debian 12 📖 ~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 & […]

Read more
Common Problems 117049

Ubuntu 22.04 LTS – cron jobs do not run because cron service is inactive

🟡 Medium   ⏱ 5–30 min  Last verified: 17 November 2023 Affected versions: Ubuntu 22.04 LTS Ubuntu 22.04 Ubuntu 22.04.4 📖 ~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 […]

Read more
How to Configure Persistent Volumes in Kubernetes on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Configure Persistent Volumes in Kubernetes on Debian 12

Introduction Debian 12 Bookworm is built around the ethos of stability and free software. Setting up configure persistent volumes in kubernetes on debian 12 on Bookworm leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Bookworm freeze. Follow each step carefully […]

Read more
How to Install and Secure phpMyAdmin on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Install and Secure phpMyAdmin on Debian 12

Introduction Deploying install and secure phpmyadmin on debian 12 on a Debian 12 Bookworm 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 You will […]

Read more
How to Install Lighttpd on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Install Lighttpd on CentOS Stream 9

Introduction This tutorial demonstrates how to Install Lighttpd on CentOS Stream 9 on CentOS Stream 9. It is written for administrators who want a repeatable, well-explained walkthrough that goes beyond a bare command list and explains each configuration choice. Every command is tested against a freshly registered CentOS Stream 9 system with the default AppStream […]

Read more
CHAT