Introduction Deploying configure ssl/tls on nginx on a FreeBSD 15 machine differs from Linux in several important ways: packages come from the FreeBSD Ports Collection or the binary pkg repository, services are registered in /etc/rc.conf via sysrc(8), and firewall rules are written in pf.conf(5) syntax. This tutorial stays entirely within the standard base + ports […]
Introduction RHEL 10 ships with a stable, security-hardened base that makes deploying manage kernel parameters with sysctl both straightforward and auditable. This tutorial covers the complete procedure for how to Manage Kernel Parameters with sysctl on RHEL 10, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for network-facing services. […]
Traefik is a modern, cloud-native reverse proxy and load balancer designed for microservices. It auto-discovers services from Docker labels, Kubernetes ingress, and other providers, and automatically provisions Let’s Encrypt TLS certificates. This guide installs Traefik v3 on Ubuntu 26.04 LTS with Docker. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS with Docker […]
iptables is the traditional Linux packet filtering framework. While UFW provides a simplified interface, understanding iptables directly is valuable for advanced firewall rules, NAT, port forwarding, and Docker networking. This guide configures iptables on Ubuntu 26.04 LTS. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS A user with sudo privileges Basic networking […]
Introduction How to Install Loki for Log Aggregation 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 […]
Introduction RHEL 10 ships with a stable, security-hardened base that makes deploying use cri-o runtime both straightforward and auditable. This tutorial covers the complete procedure for how to Use cri-o Runtime on RHEL 10, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for network-facing services. Prerequisites You will need: […]
Prometheus is an open-source metrics collection and alerting system, while Grafana provides beautiful dashboards for visualising those metrics. Together they form the most popular open-source monitoring stack. This guide installs both on Ubuntu 26.04 LTS with Nginx and SSL. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS with Nginx installed A user […]
Introduction RHEL 10 ships with a stable, security-hardened base that makes deploying install kibana both straightforward and auditable. This tutorial covers the complete procedure for how to Install Kibana on RHEL 10, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for network-facing services. Prerequisites You will need: a registered […]
🟡 Medium ⏱ 5–30 min Last verified: 13 July 2026 Affected versions: Ubuntu 26.04 LTS 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors […]
Introduction This tutorial demonstrates how to Configure LVM 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 […]
