Introduction to Group Policy on Windows Server 2022 Group Policy is the primary mechanism for applying configuration settings, security baselines, and software deployments across computers and users in an Active Directory domain. A Group Policy Object (GPO) is a collection of settings that are applied to computer accounts (via the Computer Configuration node) or user […]
Introduction Oracle Linux 9 ships with a stable, security-hardened base that makes deploying configure automatic security updates on oracle linux 9 both straightforward and auditable. This tutorial covers the complete procedure for how to Configure Automatic Security Updates on Oracle Linux 9, including dnf module streams where applicable, systemd unit management, and the firewalld rules […]
Managing AD Users and Groups with PowerShell PowerShell’s ActiveDirectory module provides a comprehensive set of cmdlets for creating, modifying, querying, and removing user and group objects in Active Directory. While the graphical ADUC console works well for one-off tasks, scripting with PowerShell is essential for bulk operations, consistent provisioning, and automation. On Windows Server 2022, […]
Introduction This tutorial demonstrates how to Set Up a Firewall with firewalld 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 […]
Overview: Promoting a Server to Domain Controller Adding a second (or additional) domain controller to an existing Active Directory domain is one of the most critical operations an administrator performs. A single-DC environment is a single point of failure — if that DC goes down, authentication, Group Policy application, DNS resolution, and file access all […]
Introduction Oracle Linux 9 ships with a stable, security-hardened base that makes deploying configure ssh key authentication on oracle linux 9 both straightforward and auditable. This tutorial covers the complete procedure for how to Configure SSH Key Authentication on Oracle Linux 9, including dnf module streams where applicable, systemd unit management, and the firewalld rules […]
Introduction Oracle Linux 9 ships with a stable, security-hardened base that makes deploying add a sudo user on oracle linux 9 both straightforward and auditable. This tutorial covers the complete procedure for how to Add a Sudo User on Oracle Linux 9, including dnf module streams where applicable, systemd unit management, and the firewalld rules […]
Introduction to Active Directory Domain Services on Windows Server 2022 Active Directory Domain Services (AD DS) is the cornerstone of identity and access management in Windows environments. It provides a centralized, hierarchical directory that stores information about users, computers, groups, printers, and other network resources. On Windows Server 2022, AD DS benefits from improved security […]
Introduction Initial Server Setup with 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 reproducible and […]
Introduction Setting up set up a devsecops pipeline on oracle linux 10 on a Oracle Linux 10 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Set Up a DevSecOps Pipeline on Oracle Linux 10, with all the commands you need, the SELinux and firewalld […]
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