Networking

How to Configure GPG Key Management on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Configure GPG Key Management on Debian 12

Introduction Debian 12 Bookworm is built around the ethos of stability and free software. Setting up configure gpg key management 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 and […]

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How to Encrypt Disk Partitions with LUKS on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Encrypt Disk Partitions with LUKS on Debian 12

Introduction How to Encrypt Disk Partitions with LUKS 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 […]

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How to Build and Deploy a Go Web Application on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Build and Deploy a Go Web Application on RHEL 8

Building a Go web application and getting it running in production are two different challenges. Go compiles to a single static binary that is trivial to deploy, but you still need a proper project structure, a way to manage runtime configuration securely, a systemd service for process supervision, and a reverse proxy to handle TLS […]

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How to Configure auditd System Auditing on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Configure auditd System Auditing on Debian 12

Introduction How to Configure auditd System Auditing 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. […]

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How to Set Up File Integrity Monitoring with AIDE on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Set Up File Integrity Monitoring with AIDE on Debian 12

Introduction Debian 12 Bookworm is built around the ethos of stability and free software. Setting up set up file integrity monitoring with aide 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 […]

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How to Deploy a Spring Boot Application on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Deploy a Spring Boot Application on RHEL 8

Spring Boot is the most popular framework for building production-ready Java applications, and RHEL 8 provides an excellent foundation for running them as long-lived services. In this tutorial you will create a Spring Boot application using Maven, package it into a self-contained executable JAR, configure it to run as a systemd service with a dedicated […]

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How to Perform a CIS Benchmark Audit on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Perform a CIS Benchmark Audit on Debian 12

Introduction This guide explains how to Perform a CIS Benchmark Audit on Debian 12 on Debian 12 Bookworm. Debian Bookworm 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 12 install with […]

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How to Configure AppArmor Profiles on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Configure AppArmor Profiles on Debian 12

Introduction How to Configure AppArmor Profiles 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 […]

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How to Install Maven and Gradle on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Install Maven and Gradle on RHEL 8

Maven and Gradle are the two dominant build tools in the Java ecosystem, and knowing how to use both gives you flexibility across different project types and team conventions. Maven provides a well-defined project structure and a massive central repository of dependencies, while Gradle offers a Groovy or Kotlin DSL with faster incremental builds and […]

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How to Install and Configure Fail2ban on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Install and Configure Fail2ban on Debian 12

Introduction This guide explains how to Install and Configure Fail2ban on Debian 12 on Debian 12 Bookworm. Debian Bookworm 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 12 install with the […]

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