Logging Monitoring

How to Configure SELinux on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Configure SELinux on RHEL 9

SELinux (Security-Enhanced Linux) is a mandatory access control (MAC) framework built into the Linux kernel, developed by the NSA and now maintained as a core part of RHEL. Unlike traditional discretionary access control (DAC) where file permissions determine access, SELinux enforces policies that confine every process to the minimum resources it legitimately needs — even […]

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How to Enable Gzip and Brotli Compression in Nginx on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Enable Gzip and Brotli Compression in Nginx on RHEL 10

Introduction How to Enable Gzip and Brotli Compression in Nginx on RHEL 10 on RHEL 10 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 […]

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

How to Install ClamAV Antivirus on RHEL 9

ClamAV is an open-source antivirus engine widely used on Linux servers to detect malware in files destined for Windows users — such as email attachments, uploaded documents, and shared network storage. While Linux systems are largely immune to the Windows malware that ClamAV detects, running it is a responsible practice wherever Linux servers act as […]

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How to Set Up HTTP/3 (QUIC) in Nginx on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Set Up HTTP/3 (QUIC) in Nginx on RHEL 10

Introduction How to Set Up HTTP/3 (QUIC) in Nginx on RHEL 10 on RHEL 10 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 OpenVPN on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Install and Configure OpenVPN on RHEL 9

OpenVPN is a mature, battle-tested VPN solution that supports TLS-based encryption and X.509 certificate authentication, making it well-suited for enterprise environments where certificate lifecycle management and strong mutual authentication are required. Unlike WireGuard, OpenVPN can traverse firewalls over TCP port 443, which is useful when UDP is blocked. On RHEL 9, OpenVPN 2.x is available […]

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How to Set Up HTTP/2 in Nginx on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Set Up HTTP/2 in Nginx on RHEL 10

Introduction This tutorial demonstrates how to Set Up HTTP/2 in Nginx on RHEL 10 on RHEL 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 RHEL 10 system with the default AppStream […]

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How to Configure Apache as a Reverse Proxy on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Configure Apache as a Reverse Proxy on RHEL 10

Introduction RHEL 10 ships with a stable, security-hardened base that makes deploying configure apache as a reverse proxy both straightforward and auditable. This tutorial covers the complete procedure for how to Configure Apache as a Reverse Proxy on RHEL 10, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for […]

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How to Configure Nginx as a Reverse Proxy on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Configure Nginx as a Reverse Proxy on RHEL 10

Introduction Setting up configure nginx as a reverse proxy on a RHEL 10 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Configure Nginx as a Reverse Proxy on RHEL 10, with all the commands you need, the SELinux and firewalld considerations to keep in […]

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How to Harden SSH on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Harden SSH on RHEL 9

SSH is the primary remote access method for Linux servers, making it a common target for brute-force attacks, credential stuffing, and exploitation attempts. On RHEL 9, the default OpenSSH configuration works out of the box but leaves several attack vectors open. Hardening your SSH server configuration significantly reduces the risk of unauthorized access and is […]

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How to Enable HTTPS with Let's Encrypt on Nginx RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Enable HTTPS with Let’s Encrypt on Nginx RHEL 10

Introduction This tutorial demonstrates how to Enable HTTPS with Let’s Encrypt on Nginx RHEL 10 on RHEL 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 RHEL 10 system with the default […]

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