Containers

How to Set Up Docker Multi-Stage Builds on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Set Up Docker Multi-Stage Builds on Debian 9

Introduction This guide explains how to Set Up Docker Multi-Stage Builds 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 […]

Read more
How to Set Up Unbound DNS Resolver on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Set Up Unbound DNS Resolver on Debian 10

Introduction Deploying set up unbound dns resolver on debian 10 on a Debian 10 Buster 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 […]

Read more
How to Use Makefile for Build Automation on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Use Makefile for Build Automation on RHEL 8

GNU Make is one of the oldest and most reliable build automation tools in software development, yet it remains deeply relevant in modern DevOps workflows. A Makefile acts as a self-documenting command runner that codifies every build, test, lint, and deploy action in a single file that any developer or CI system can invoke with […]

Read more
How to Configure Database Backups with Automysqlbackup on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure Database Backups with Automysqlbackup on Debian 10

Introduction This guide explains how to Configure Database Backups with Automysqlbackup on Debian 10 on Debian 10 Buster. Debian Buster 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 10 install with […]

Read more
How to Set Up Docker Registry with Authentication on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Set Up Docker Registry with Authentication on Debian 9

Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up set up docker registry with authentication 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 […]

Read more
How to Configure Network Bridging on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure Network Bridging on Debian 10

Introduction How to Configure Network Bridging on Debian 10 is a fundamental operation for any administrator maintaining a Debian 10 Buster server. Debian 10 Buster 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 10. This […]

Read more
How to Configure Apache2 with mod_security on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure Apache2 with mod_security on Debian 10

Introduction How to Configure Apache2 with mod_security on Debian 10 is a fundamental operation for any administrator maintaining a Debian 10 Buster server. Debian 10 Buster 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 10. […]

Read more
Common Problems 118076

Ubuntu 18.04 LTS – Docker daemon fails after kernel update with cgroup issues – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 23 February 2020 Affected versions: Ubuntu 18.04 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
How to Install Helm Package Manager for Kubernetes on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Install Helm Package Manager for Kubernetes on Debian 10

Introduction Debian 10 Buster is built around the ethos of stability and free software. Setting up install helm package manager for kubernetes on debian 10 on Buster leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Buster freeze. Follow each step […]

Read more
How to Use Makefile for Build Automation on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Use Makefile for Build Automation on RHEL 7

How to Use Makefile for Build Automation on RHEL 7 The Makefile has been a cornerstone of software build automation since the 1970s, and it remains one of the most versatile and universally available tools on any Linux system. On RHEL 7, GNU Make is installed by default as part of the base system or […]

Read more
CHAT