Systemd Services

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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How to Set Up Snort IDS on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Set Up Snort IDS on Debian 13

Introduction Debian 13 Trixie is built around the ethos of stability and free software. Setting up set up snort ids on Trixie leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Trixie freeze. Follow each step carefully and the resulting configuration […]

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How to Configure Suricata IDS on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Configure Suricata IDS on Debian 13

Introduction This guide explains how to Configure Suricata IDS 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 […]

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How to Set Up SELinux on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Set Up SELinux on Debian 13

Introduction How to Set Up SELinux 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 […]

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How to Configure Log Rotation with logrotate on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Configure Log Rotation with logrotate on RHEL 8

Log files grow indefinitely unless something rotates and prunes them, which will eventually fill a disk and crash your services. On RHEL 8, logrotate is installed by default and handles rotation for most system logs out of the box via a systemd timer. For application logs your team manages, you need to write a custom […]

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How to Configure Automatic Kernel Hardening with Hardening.io on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Configure Automatic Kernel Hardening with Hardening.io on Debian 13

Introduction This guide explains how to Configure Automatic Kernel Hardening with Hardening.io 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 […]

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How to Use tmux for Terminal Multiplexing on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Use tmux for Terminal Multiplexing on RHEL 8

tmux is a terminal multiplexer that lets you run multiple shell sessions inside a single terminal window, keep sessions alive after you disconnect from SSH, and split your screen into panes for simultaneous work. On RHEL 8 it is available from the default AppStream repository and requires no additional configuration to get started. This tutorial […]

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