How to Configure Apache mod_proxy as a Reverse Proxy on RHEL 7 Apache’s mod_proxy module transforms your existing Apache web server into a fully capable reverse proxy without requiring any additional software. On RHEL 7, Apache is the default web server and is frequently already running for other purposes. Rather than installing a second web […]
VictoriaMetrics is a fast, cost-efficient time-series database designed as a drop-in replacement for Prometheus storage. It supports the full Prometheus remote_write protocol, exposes its own MetricsQL query language (fully compatible with PromQL), and operates as a single binary with no external dependencies. On RHEL 8, the installation takes under five minutes and the memory footprint […]
How to Enable HTTP/2 with Nginx on RHEL 7 HTTP/2 is the major revision of the HTTP network protocol that brings multiplexed streams, header compression, and server push to web traffic. Compared to HTTP/1.1, HTTP/2 dramatically reduces page load times on sites with many assets by eliminating head-of-line blocking and reducing the overhead of repeated […]
HTTP security headers instruct browsers how to handle your site’s content and protect visitors from clickjacking, cross-site scripting, MIME sniffing, and other common attacks. Adding these headers to Nginx or Apache on RHEL 8 is a high-value, low-effort hardening step that improves both your security posture and your score on tools like securityheaders.com. This tutorial […]
How to Configure syslog-ng for Centralised Syslog on RHEL 7 Every Linux system generates a continuous stream of log data from the kernel, system services, and applications. On a single host, rsyslog handles this adequately, but when you need to aggregate logs from dozens or hundreds of servers into a central repository, filter them intelligently, […]
WireGuard is a modern, high-performance VPN protocol built into the Linux kernel since version 5.6, offering significantly simpler configuration and better performance than older alternatives like OpenVPN or IPsec. On RHEL 8, WireGuard can be installed via the ELRepo kernel module or the wireguard-tools package from EPEL, with the kernel module provided by the elrepo-kernel […]
How to Set Up Kubernetes Ingress with Nginx Ingress Controller on RHEL 7 Kubernetes Ingress provides a powerful way to expose HTTP and HTTPS routes from outside the cluster to services running inside it. Rather than creating a separate LoadBalancer service for every application, an Ingress resource lets you define routing rules in one place, […]
Setting a proper hostname and Fully Qualified Domain Name (FQDN) is one of the first configuration tasks on any new RHEL 8 server. A correct hostname ensures that system logs, email delivery, and network services identify your machine accurately. On RHEL 8, hostnamectl from systemd provides a clean, persistent way to manage hostname settings without […]
How to Configure Podman Compose on RHEL 7 Podman Compose is a Python script that implements the Docker Compose file specification against the Podman container engine. It allows you to use your existing docker-compose.yml files with Podman, either with the rootless model for increased security or as root on systems where Docker is not installed. […]
How to Install Elasticsearch on RHEL 7 Elasticsearch is a distributed, RESTful search and analytics engine built on Apache Lucene. It is widely used for full-text search, log aggregation, and real-time data analysis. This guide walks you through installing and configuring Elasticsearch on Red Hat Enterprise Linux 7, including repository setup, basic cluster configuration, JVM […]
