How to Configure a DSC Pull Server on Windows Server 2012 R2 Desired State Configuration (DSC) is a PowerShell-based configuration management platform built into Windows Server 2012 R2. In push mode, an administrator pushes configurations directly to individual nodes. In pull mode, nodes periodically contact a central Pull Server to retrieve their configuration and report […]
Helm is the standard Kubernetes package manager — a single helm install command deploys a complete application stack by rendering and applying a collection of templated Kubernetes manifests called a chart. Beyond basic installation, Helm provides powerful package management workflows: multiple simultaneous releases of the same chart with different configurations, chart dependencies (a parent chart […]
GitHub Actions self-hosted runners allow running GitHub Actions CI/CD workflows on your own infrastructure instead of GitHub’s shared runners. This is essential when workflows need to: access private network resources (internal databases, Docker registries, Kubernetes clusters), use specialised hardware (GPUs, large memory), comply with data residency requirements, or reduce GitHub Actions billing costs for high-volume […]
Terraform’s power lies in its ability to provision real cloud infrastructure — virtual machines, networks, databases, DNS records, load balancers, and Kubernetes clusters — using declarative configuration. A Terraform configuration describes the desired end state, and Terraform calculates and executes the actions needed to reach that state. Key concepts in practice are: resources (infrastructure objects […]
How to Write Advanced PowerShell Scripts for Windows Server 2012 R2 Administration PowerShell is the cornerstone of modern Windows Server administration. On Windows Server 2012 R2, PowerShell 4.0 ships by default, bringing with it Desired State Configuration, enhanced remoting, workflow capabilities, and a mature scripting ecosystem. For sysadmins managing dozens or hundreds of servers, mastering […]
Ansible playbooks are YAML files that describe the desired state of a set of managed servers using a series of tasks. Advanced playbook authoring goes beyond simple task lists to include: roles (reusable, shareable task bundles with a standard directory structure), handlers (tasks triggered only when a change occurs, such as restarting Nginx only when […]
How to Set Up Site-to-Site VPN with RRAS on Windows Server 2012 R2 A site-to-site VPN connects two geographically separate networks over the internet as if they were directly connected. Windows Server 2012 R2 RRAS (Routing and Remote Access Service) can act as a VPN gateway for site-to-site connections, establishing persistent encrypted tunnels between a […]
How to Set Up iSCSI Initiator on Windows Server 2012 R2 The iSCSI Initiator allows Windows Server 2012 R2 to connect to iSCSI storage targets — shared storage devices that expose block-level storage over a standard IP network. iSCSI is widely used for connecting servers to SAN (Storage Area Network) devices, NAS appliances with iSCSI […]
How to Configure Scale-Out File Server (SoFS) on Windows Server 2012 R2 Scale-Out File Server (SoFS) is a Failover Cluster role in Windows Server 2012 R2 that provides continuously available file shares using SMB 3.0. Unlike a traditional File Server Failover Cluster role — where one node actively serves files while others stand by — […]
How to Set Up Work Folders on Windows Server 2012 R2 Work Folders is a file synchronization service introduced in Windows Server 2012 R2 that allows users to store and sync work files from personal devices or corporate computers, even when they are not connected to the corporate network. Unlike traditional folder redirection which requires […]
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