The Prometheus Blackbox Exporter allows you to probe external endpoints over HTTP, HTTPS, TCP, and ICMP and expose the results as Prometheus metrics. Unlike Node Exporter, which reports what is happening inside a host, the Blackbox Exporter reports whether a service is reachable from the outside — making it ideal for end-to-end availability checks. This […]
Introduction How to Install AIDE for File Integrity 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 […]
Uptime Kuma is a self-hosted monitoring tool that provides a clean web dashboard for tracking uptime across HTTP endpoints, TCP ports, DNS records, Docker containers, and more. On RHEL 9, you can run it directly with Node.js and PM2 for process management, or deploy it instantly via Docker. This tutorial walks through both approaches, firewall […]
Introduction How to Install rkhunter 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 and production-safe. […]
Introduction RHEL 10 ships with a stable, security-hardened base that makes deploying install clamav antivirus both straightforward and auditable. This tutorial covers the complete procedure for how to Install ClamAV Antivirus on RHEL 10, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for network-facing services. Prerequisites Before you begin, […]
syslog-ng is a high-performance, flexible syslog daemon that can act as a centralised log server, receiving log messages from dozens of remote hosts, filtering them, and writing them to organised file hierarchies or forwarding them to external storage systems. Unlike the default rsyslog that ships with RHEL 9, syslog-ng offers a powerful pattern-based configuration language […]
Introduction This tutorial demonstrates how to Configure fail2ban 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. Prerequisites […]
Jaeger is a distributed tracing platform originally developed by Uber that helps developers visualise request flows across microservices, identify latency bottlenecks, and diagnose failures in complex systems. Each request is represented as a trace composed of spans — timed operations — that are collected from instrumented services and assembled into a service map. This guide […]
Introduction How to Write a Custom SELinux Policy Module 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 […]
The OpenTelemetry Collector is a vendor-agnostic agent that receives, processes, and exports telemetry data — metrics, traces, and logs — from instrumented applications. Running a standalone Collector on RHEL 9 decouples your application code from the observability backend, making it easy to route data to multiple destinations or swap backends without redeploying services. This guide […]
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