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How to Set Up ModSecurity WAF with Apache on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Set Up ModSecurity WAF with Apache on RHEL 8

ModSecurity is a widely-deployed open-source Web Application Firewall (WAF) that integrates directly with Apache as a module. Combined with the OWASP Core Rule Set (CRS), it provides protection against the most common web attack categories including SQL injection, cross-site scripting, and remote code execution. On RHEL 8, both the mod_security Apache module and the mod_security_crs […]

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How to Configure Squid Proxy on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Configure Squid Proxy on Debian 13

Introduction Deploying configure squid proxy 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 is fully […]

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How to Install and Configure Caddy Web Server on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Install and Configure Caddy Web Server on RHEL 8

Caddy is a modern, open-source web server written in Go that automatically provisions and renews TLS certificates via Let’s Encrypt. Unlike Apache or Nginx, Caddy requires almost no manual TLS configuration, making it an excellent choice for developers who want HTTPS out of the box. On RHEL 8, Caddy is not available in the default […]

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How to Configure strongSwan IPsec VPN on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Configure strongSwan IPsec VPN on Debian 13

Introduction Deploying configure strongswan ipsec vpn 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 […]

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How to Configure Nginx Load Balancing on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Configure Nginx Load Balancing on RHEL 8

Load balancing distributes incoming client requests across multiple backend servers, preventing any single server from becoming a bottleneck and improving both throughput and fault tolerance. Nginx’s built-in load balancing is highly capable and available in the open-source version without any additional modules for most common use cases. On RHEL 8, you can configure Nginx to […]

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

How to Set Up WireGuard VPN on Debian 13

Introduction This guide explains how to Set Up WireGuard VPN 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 […]

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How to Set Up an OpenVPN Server on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Set Up an OpenVPN Server on Debian 13

Introduction Debian 13 Trixie is built around the ethos of stability and free software. Setting up set up an openvpn server 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 […]

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How to Enable HTTP/2 with Nginx on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Enable HTTP/2 with Nginx on RHEL 8

HTTP/2 delivers significant performance improvements over HTTP/1.1 through features such as header compression, request multiplexing, and server push — all over a single TCP connection. Nginx has supported HTTP/2 since version 1.9.5, and on RHEL 8 the AppStream version of Nginx is compiled with the necessary OpenSSL support to enable it. Because browsers only implement […]

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

How to Configure Bridge Networking on Debian 13

Introduction Debian 13 Trixie is built around the ethos of stability and free software. Setting up configure bridge networking 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 Configure Apache mod_proxy as a Reverse Proxy on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Configure Apache mod_proxy as a Reverse Proxy on RHEL 8

Apache’s mod_proxy module turns your existing Apache web server into a fully functional reverse proxy without requiring a second web server like Nginx. This is particularly useful when you already have Apache managing SSL termination, virtual hosts, or authentication, and want to forward traffic to a backend application server such as Tomcat, Node.js, or a […]

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