Firewall

How to Install Nginx on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Install Nginx on RHEL 9

Nginx (pronounced “engine-x”) is the most widely deployed web server in the world, powering everything from small personal websites to the largest content delivery networks. On RHEL 9, Nginx is available from the AppStream repository and integrates natively with SELinux, firewalld, and systemd. Its event-driven, non-blocking architecture means a single Nginx worker process can handle […]

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How to Install Ruby with rbenv on Oracle Linux 10 — step-by-step Oracle Linux 10 tutorial on Progressive Robot

How to Install Ruby with rbenv on Oracle Linux 10

Introduction This tutorial demonstrates how to Install Ruby with rbenv on Oracle Linux 10 on Oracle Linux 10. 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 Oracle Linux 10 system with the […]

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How to Harden PHP on Oracle Linux 10 — step-by-step Oracle Linux 10 tutorial on Progressive Robot

How to Harden PHP on Oracle Linux 10

Introduction This tutorial demonstrates how to Harden PHP on Oracle Linux 10 on Oracle Linux 10. 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 Oracle Linux 10 system with the default AppStream […]

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How to Install Go 1.23 on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Install Go 1.23 on Debian 13

Introduction Debian 13 Trixie is built around the ethos of stability and free software. Setting up install go 1.23 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 will […]

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How to Install Python 3.13 on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Install Python 3.13 on Debian 13

Introduction Debian 13 Trixie is built around the ethos of stability and free software. Setting up install python 3.13 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 will […]

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How to Tune the Linux Kernel with sysctl on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Tune the Linux Kernel with sysctl on Debian 13

Introduction This guide explains how to Tune the Linux Kernel with sysctl 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 Enable Brotli Compression in Nginx on Oracle Linux 10 — step-by-step Oracle Linux 10 tutorial on Progressive Robot

How to Enable Brotli Compression in Nginx on Oracle Linux 10

Introduction Oracle Linux 10 ships with a stable, security-hardened base that makes deploying enable brotli compression in nginx on oracle linux 10 both straightforward and auditable. This tutorial covers the complete procedure for how to Enable Brotli Compression in Nginx on Oracle Linux 10, including dnf module streams where applicable, systemd unit management, and the […]

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How to Set Up ModSecurity WAF with Apache on Oracle Linux 10 — step-by-step Oracle Linux 10 tutorial on Progressive Robot

How to Set Up ModSecurity WAF with Apache on Oracle Linux 10

Introduction Setting up set up modsecurity waf with apache on oracle linux 10 on a Oracle Linux 10 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Set Up ModSecurity WAF with Apache on Oracle Linux 10, with all the commands you need, the SELinux […]

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How to Configure Network Interface Settings with nmcli and ip on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Configure Network Interface Settings with nmcli and ip on RHEL 9

Network configuration on RHEL 9 is managed by NetworkManager, and the primary tools for working with it are nmcli (NetworkManager Command-Line Interface) and the traditional ip command from the iproute2 package. Understanding both is essential: nmcli creates persistent network profiles that survive reboots and are managed by NetworkManager, while the ip command makes temporary changes […]

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How to Configure IPv6 Networking on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Configure IPv6 Networking on Debian 13

Introduction How to Configure IPv6 Networking 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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