Firewall

How to Set Up Node Exporter for Server Metrics on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Set Up Node Exporter for Server Metrics on Debian 11

Introduction This guide explains how to Set Up Node Exporter for Server Metrics on Debian 11 on Debian 11 Bullseye. Debian Bullseye 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 11 […]

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How to Configure Concourse CI on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Configure Concourse CI on CentOS Stream 9

Introduction This tutorial demonstrates how to Configure Concourse CI on CentOS Stream 9 on CentOS Stream 9. It is written for administrators who want a repeatable, well-explained walkthrough that goes beyond a bare command list and explains each configuration choice. Every command is tested against a freshly registered CentOS Stream 9 system with the default […]

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How to Configure Caddy Web Server on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Configure Caddy Web Server on CentOS Stream 9

Introduction How to Configure Caddy Web Server on CentOS Stream 9 on CentOS Stream 9 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting configuration […]

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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 Install Nomad Workload Orchestrator on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Install Nomad Workload Orchestrator on Debian 11

Introduction How to Install Nomad Workload Orchestrator on Debian 11 is a fundamental operation for any administrator maintaining a Debian 11 Bullseye server. Debian 11 Bullseye 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 11. […]

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How to Configure SELinux Targeted Policy on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Configure SELinux Targeted Policy on CentOS Stream 9

Introduction Setting up configure selinux targeted policy on centos stream 9 on a CentOS Stream 9 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Configure SELinux Targeted Policy on CentOS Stream 9, with all the commands you need, the SELinux and firewalld considerations to […]

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How to Set Up ModSecurity WAF on SLES 15 — step-by-step SUSE Linux Enterprise 15 tutorial on Progressive Robot

How to Set Up ModSecurity WAF on SLES 15

Introduction This tutorial covers How to Set Up ModSecurity WAF on SLES 15 on SLES 15. SLES 15 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 15 system is up to date: zypper […]

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How to Configure Rate Limiting in Nginx on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Configure Rate Limiting in Nginx on Debian 11

Introduction How to Configure Rate Limiting in Nginx on Debian 11 is a fundamental operation for any administrator maintaining a Debian 11 Bullseye server. Debian 11 Bullseye 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 Configure Docker Log Rotation on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Configure Docker Log Rotation on CentOS Stream 9

Introduction How to Configure Docker Log Rotation on CentOS Stream 9 on CentOS Stream 9 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting configuration […]

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How to Set Up BGP Routing with BIRD on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Set Up BGP Routing with BIRD on Debian 11

Introduction This guide explains how to Set Up BGP Routing with BIRD on Debian 11 on Debian 11 Bullseye. Debian Bullseye 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 11 install […]

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