Introduction RHEL 10 ships with a stable, security-hardened base that makes deploying configure jenkins with https via nginx both straightforward and auditable. This tutorial covers the complete procedure for how to Configure Jenkins with HTTPS via Nginx on RHEL 10, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for […]
Without a log rotation strategy, application log files will grow unbounded until they fill your disk and bring services down. Logrotate is the standard RHEL utility that automates log file rotation, compression, and cleanup on a scheduled basis with no daemon process required. It runs daily via a cron job and processes configuration rules you […]
Netdata is a lightweight, real-time performance monitoring agent that provides per-second metrics with zero configuration for hundreds of applications and services out of the box. Unlike traditional monitoring solutions that poll at 15- or 60-second intervals, Netdata collects data every second and renders interactive charts in its built-in web dashboard instantly. It is designed to […]
Zabbix is a mature, enterprise-grade open-source monitoring solution capable of tracking thousands of servers, virtual machines, network devices, and applications from a single web interface. It supports agent-based and agentless monitoring, flexible alerting, and detailed graphing out of the box. This tutorial installs Zabbix 6.4 on RHEL 9 using MySQL (MariaDB) as the backend database […]
Introduction This tutorial demonstrates how to Set Up Ingress with NGINX in Kubernetes 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 […]
HTTP security headers are a lightweight but highly effective layer of defence for web applications, instructing browsers to enforce policies that mitigate common attacks like clickjacking, MIME-type sniffing, cross-site scripting (XSS), and protocol downgrade attacks. HSTS (HTTP Strict Transport Security) forces browsers to use HTTPS exclusively, while a Content Security Policy (CSP) controls which resources […]
Introduction How to Configure PHP-FPM with 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 is reproducible […]
SELinux (Security-Enhanced Linux) enforces Mandatory Access Control (MAC) on RHEL 9, confining processes to only the resources they are explicitly permitted to access regardless of traditional Unix file permissions. While RHEL ships with comprehensive base policies, custom applications often generate AVC (Access Vector Cache) denials because their access patterns are not covered by existing policy […]
Introduction This tutorial demonstrates how to Install Apache Cassandra 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 repositories enabled. […]
OpenSSL is the most widely used toolkit for working with SSL/TLS certificates on Linux systems. On RHEL 9, it provides everything you need to generate private keys, create certificate signing requests (CSRs), sign certificates using your own certificate authority, and convert between certificate formats. Understanding OpenSSL is essential for any sysadmin managing secure services. This […]
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