How to Monitor Nginx with Prometheus nginx-exporter on RHEL 7 Monitoring your Nginx web server with Prometheus and Grafana gives you real-time visibility into request rates, connection states, error rates, and server performance over time. The Prometheus ecosystem works through a scrape model: an exporter process exposes metrics at an HTTP endpoint in a text […]
How to Harden Nginx: Security Headers, TLS 1.3 and OCSP Stapling on RHEL 7 A default Nginx installation exposes unnecessary information about the server software, accepts outdated and broken TLS protocol versions, and omits the HTTP security headers that modern browsers rely on for protection against cross-site scripting, clickjacking, and protocol downgrade attacks. Hardening Nginx […]
How to Configure Nginx WebSocket Proxying on RHEL 7 WebSockets provide a full-duplex communication channel over a single TCP connection, enabling real-time features such as live chat, push notifications, collaborative editing, and live dashboards. Unlike traditional HTTP requests, a WebSocket connection is established through an HTTP upgrade handshake and then kept open indefinitely. Nginx can […]
How to Configure SSL/TLS with OpenSSL and Self-Signed Certificates on RHEL 7 Encrypting web traffic with SSL/TLS is no longer optional for any server that handles user data, logins, or forms. Even on internal or development servers, a self-signed certificate provides encryption in transit and is far preferable to plain HTTP. On RHEL 7, OpenSSL […]
How to Set Up a LAMP Stack on RHEL 7 A LAMP stack — Linux, Apache, MySQL, and PHP — is one of the most widely deployed web server configurations in the world. On Red Hat Enterprise Linux 7, setting up a fully functional LAMP stack requires pulling packages from multiple repositories, because RHEL 7’s […]
How to Set Up a LEMP Stack on RHEL 7 A LEMP stack — Linux, Nginx, MySQL, and PHP — is one of the most common foundations for modern dynamic web applications. On RHEL 7 the individual components are available from a combination of the base repositories, the EPEL community repository, the official MySQL community […]
How to Install and Configure OpenLiteSpeed Web Server on RHEL 7 OpenLiteSpeed is the open-source edition of LiteSpeed Web Server, one of the fastest web servers available for Linux. It is event-driven, capable of handling tens of thousands of concurrent connections with minimal memory, and includes native support for PHP via LSAPI — an interface […]
How to Configure HAProxy for HTTP and TCP Load Balancing on RHEL 7 HAProxy is one of the most widely deployed open-source load balancers in production infrastructure, renowned for its high throughput, low latency, and fine-grained configurability. On RHEL 7 it is available directly from the base repositories and integrates cleanly with systemctl and firewalld. […]
How to Set Up Varnish Cache as a Reverse Proxy on RHEL 7 Varnish Cache is a high-performance HTTP reverse proxy and caching accelerator designed to sit in front of your web server. When a visitor requests a page, Varnish checks whether it holds a fresh cached copy. If it does, the response is served […]
How to Configure Nginx FastCGI Caching on RHEL 7 FastCGI caching in Nginx allows you to store responses from your PHP backend — typically PHP-FPM — directly on disk or in memory, serving subsequent identical requests without re-executing PHP. On a busy RHEL 7 server this can reduce backend load by an order of magnitude, […]
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