Package Management

How to Manage Users and Groups on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Manage Users and Groups on Debian 9

Introduction Deploying manage users and groups 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 […]

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How to Configure Swap Space on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Configure Swap Space on Debian 9

Introduction How to Configure Swap Space 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 […]

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How to Enable AppArmor on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Enable AppArmor on Debian 9

Introduction Deploying enable apparmor 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, ensure […]

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How to Install and Configure iptables on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Install and Configure iptables on Debian 9

Introduction Deploying install and configure iptables 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 Ensure Debian […]

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How to Configure NTP Time Synchronization on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Configure NTP Time Synchronization on Debian 9

Introduction This guide explains how to Configure NTP Time Synchronization 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 […]

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How to Set Up Automatic Security Updates on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Set Up Automatic Security Updates on Debian 9

Introduction Deploying set up automatic security updates 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 You […]

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How to Configure the System Timezone on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Configure the System Timezone on Debian 9

Introduction Deploying configure the system timezone 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 You will […]

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How to Monitor Nginx with Prometheus nginx-exporter on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Monitor Nginx with Prometheus nginx-exporter on RHEL 7

How to Monitor Nginx with Prometheus nginx-exporter on RHEL 7 Monitoring your Nginx web server with Prometheus and Grafana gives you real-time visibility into request rates, connection states, error rates, and server performance over time. The Prometheus ecosystem works through a scrape model: an exporter process exposes metrics at an HTTP endpoint in a text […]

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How to Set the Hostname and FQDN on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Set the Hostname and FQDN on Debian 9

Introduction Deploying set the hostname and fqdn 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 You […]

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How to Configure sudo for Non-Root Users on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Configure sudo for Non-Root Users on Debian 9

Introduction How to Configure sudo for Non-Root Users 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 […]

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