Introduction This guide explains how to Configure pfsync Firewall State Synchronization on FreeBSD 12 on FreeBSD 12. FreeBSD uses the pkg(8) binary package manager, rc.conf(5) for service startup configuration, and pf(4) as its primary packet filter. There is no SELinux or AppArmor — instead, FreeBSD provides the MAC (Mandatory Access Control) framework and Capsicum for […]
Terraform is HashiCorp’s open-source Infrastructure as Code (IaC) tool that allows provisioning and managing cloud infrastructure (VMs, databases, networks, DNS records, Kubernetes clusters) using declarative configuration files. Unlike Ansible (which is primarily a configuration management tool that executes tasks imperatively), Terraform maintains a state file that tracks the real-world infrastructure it manages — allowing it […]
Introduction This tutorial demonstrates how to Configure GitLab CI/CD on Oracle Linux 9 on Oracle Linux 9. 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 Oracle Linux 9 system with the default […]
RHEL 8 ships with firewalld as its default firewall management layer, replacing the older iptables static ruleset approach with a dynamic, zone-based model. Zones define the level of trust assigned to network interfaces and traffic sources, and rules can be added or removed at runtime without flushing the entire ruleset. This guide covers the essential […]
🟡 Medium ⏱ 5–30 min Last verified: 17 May 2023 Affected versions: Oracle Linux 9 📖 ~2 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 How to Configure Container Networking on Oracle Linux 9 on Oracle Linux 9 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 Setting up set up zabbix on oracle linux 9 on a Oracle Linux 9 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Set Up Zabbix on Oracle Linux 9, with all the commands you need, the SELinux and firewalld considerations to keep in […]
Introduction IBM AIX 7.1 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.1 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to integrate aix with active directory on ibm aix 7.1 […]
Introduction to Terraform on Windows Server 2022 Terraform is an open-source Infrastructure as Code (IaC) tool developed by HashiCorp that allows you to define, provision, and manage cloud and on-premises infrastructure using a declarative configuration language called HCL (HashiCorp Configuration Language). Running Terraform on Windows Server 2022 is fully supported and is common in enterprise […]
Traefik is a modern, cloud-native reverse proxy and load balancer that discovers routing rules dynamically from configuration files, Docker labels, or Kubernetes annotations — eliminating most of the manual virtual host configuration required by Nginx or Apache. Version 3 introduces improved middleware composition, better gRPC support, and enhanced ACME (Let’s Encrypt) certificate management. On RHEL […]
