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How to Install Loki for Log Aggregation on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Install Loki for Log Aggregation on Debian 13

Introduction Deploying install loki for log aggregation on a Debian 13 Trixie 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 13 Trixie […]

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How to Install node_exporter on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Install node_exporter on Debian 13

Introduction This guide explains how to Install node_exporter on Debian 13 on Debian 13 Trixie. Debian Trixie 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 13 install with the standard repositories […]

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How to Monitor Disk Usage with df, du, lsblk and ncdu on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Monitor Disk Usage with df, du, lsblk and ncdu on RHEL 8

Running out of disk space is one of the most disruptive events on a Linux server, and it often happens silently until a service crashes or a write fails. Red Hat Enterprise Linux 8 ships with several tools to help you stay ahead of the problem: df for a quick filesystem overview, du for directory-level […]

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How to Install Grafana on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Install Grafana on Debian 13

Introduction Deploying install grafana on a Debian 13 Trixie 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 need a registered Debian 13 […]

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How to Install Prometheus on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Install Prometheus on Debian 13

Introduction How to Install Prometheus on Debian 13 is a fundamental operation for any administrator maintaining a Debian 13 Trixie server. Debian 13 Trixie 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 tutorial […]

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How to Schedule Automated Tasks with cron and anacron on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Schedule Automated Tasks with cron and anacron on RHEL 8

Automating repetitive tasks is one of the core responsibilities of a Linux system administrator. Red Hat Enterprise Linux 8 provides several scheduling mechanisms: the venerable cron daemon for recurring jobs, anacron for machines that are not always running, the at command for one-off deferred tasks, and systemd timers for tighter integration with the service manager. […]

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How to Apply CIS Benchmark Hardening to Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Apply CIS Benchmark Hardening to Debian 13

Introduction This guide explains how to Apply CIS Benchmark Hardening to Debian 13 on Debian 13 Trixie. Debian Trixie 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 13 install with the […]

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How to Use rsync for Efficient File Synchronisation on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Use rsync for Efficient File Synchronisation on RHEL 8

When you need to copy large directory trees, synchronise remote backups, or mirror content between servers, rsync is the tool of choice on Red Hat Enterprise Linux 8. Unlike a plain cp or scp, rsync transmits only the differences between source and destination, making subsequent runs dramatically faster. Its rich option set covers everything from […]

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How to Configure OpenVAS Vulnerability Scanner on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Configure OpenVAS Vulnerability Scanner on Debian 13

Introduction Deploying configure openvas vulnerability scanner on a Debian 13 Trixie 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 you […]

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How to Configure /etc/hosts, /etc/resolv.conf and DNS Resolution on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Configure /etc/hosts, /etc/resolv.conf and DNS Resolution on RHEL 8

Reliable name resolution is essential for almost every networked service on a Linux server. Red Hat Enterprise Linux 8 gives you several places to configure how hostnames are resolved: the static /etc/hosts file, the resolver configuration in /etc/resolv.conf, the look-up order defined in /etc/nsswitch.conf, and DNS settings managed through NetworkManager. Knowing how these layers interact […]

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