Firewall

How to Set Up a LEMP Stack on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Set Up a LEMP Stack on RHEL 8

A LEMP stack — Linux, Nginx, MySQL (or MariaDB), and PHP — is one of the most common foundations for hosting WordPress, Laravel, and other PHP applications. On RHEL 8, each component is available from the default AppStream repository using module streams, giving you fine-grained control over which PHP version you install without relying on […]

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

How to Install Lighttpd on Debian 9

Introduction This guide explains how to Install Lighttpd 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 repositories […]

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How to Install and Configure InfluxDB on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Install and Configure InfluxDB on Debian 10

Introduction Deploying install and configure influxdb 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 Ensure Debian […]

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How to Install Prometheus on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Install Prometheus on Debian 10

Introduction How to Install Prometheus 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 tutorial […]

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How to Configure iptables Firewall Rules on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Configure iptables Firewall Rules on RHEL 8

Although firewalld ships as the default firewall manager on RHEL 8, some administrators prefer the well-known iptables command syntax for its long history, broad documentation, and deterministic rule ordering. RHEL 8 supports running iptables as a standalone service through the iptables-services package, which must be installed after disabling firewalld to avoid conflicts. This tutorial covers […]

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How to Configure HAST High-Availability Storage on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Configure HAST High-Availability Storage on FreeBSD 12

Introduction How to Configure HAST High-Availability Storage on FreeBSD 12 is a core administration task for any FreeBSD 12 server operator. FreeBSD 12 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for packet […]

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How to Encrypt Disk Partitions with LUKS on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Encrypt Disk Partitions with LUKS on Debian 10

Introduction This guide explains how to Encrypt Disk Partitions with LUKS 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 […]

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How to Set Up Uptime Kuma for Service Monitoring on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Set Up Uptime Kuma for Service Monitoring on RHEL 8

Uptime Kuma is a self-hosted monitoring tool that provides a clean web interface for tracking the availability of HTTP endpoints, TCP ports, DNS records, and ping targets. On RHEL 8, you can deploy it quickly using Docker or run it directly with Node.js managed by PM2. This tutorial walks through both installation methods, configuring monitors, […]

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How to Configure AIX Trusted Computing Base (TCB) on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Configure AIX Trusted Computing Base (TCB) on IBM AIX 7.1

Introduction IBM AIX 7.1 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.1 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to configure aix trusted computing base (tcb) on ibm aix […]

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How to Encrypt Disk Partitions with LUKS on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Encrypt Disk Partitions with LUKS on Debian 9

Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up encrypt disk partitions with luks 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 […]

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