ArgoCD is a declarative, GitOps-based continuous delivery tool for Kubernetes. In the GitOps model, Git is the single source of truth for both application code and infrastructure configuration — when a developer pushes a change to a Git repository, ArgoCD automatically detects the change and applies it to the Kubernetes cluster, keeping the live cluster […]
Kubernetes Role-Based Access Control (RBAC) is the mechanism for controlling which users and service accounts can perform which actions on which resources within a Kubernetes cluster. Without RBAC configuration, all authenticated users (and service accounts in pods) have full admin access — a significant security risk in multi-team environments. RBAC uses four resource types: Role […]
Kubernetes Services of type ClusterIP expose applications only within the cluster — external traffic cannot reach them directly. An Ingress resource solves this by providing HTTP/HTTPS routing from outside the cluster to internal services based on hostnames and URL paths. The Nginx Ingress Controller is the most widely deployed ingress controller, running as a pod […]
How to Configure USB Device Restriction via Group Policy on Windows Server 2012 R2 Removable storage devices represent a significant data exfiltration and malware introduction risk in any organization. USB flash drives, portable hard drives, and other removable media can bypass network-level security controls entirely. Windows Server 2012 R2 provides multiple mechanisms to restrict removable […]
Helm is the package manager for Kubernetes — it allows defining, installing, and upgrading complex Kubernetes applications using charts, which are pre-configured packages of Kubernetes resource manifests. Instead of manually writing and applying dozens of YAML files for a complex application (deployments, services, config maps, secrets, ingress rules, RBAC), a single helm install command deploys […]
k3s is a lightweight, certified Kubernetes distribution designed for resource-constrained environments, edge computing, IoT devices, and development workstations. Created by Rancher (now SUSE), k3s packages the entire Kubernetes control plane into a single binary under 100 MB, removing cloud-provider integrations, storage drivers, and alpha features that are not needed in most deployments. k3s uses SQLite […]
How to Set Up RADIUS Authentication with NPS on Windows Server 2012 R2 Network Policy Server (NPS) is Microsoft’s implementation of a RADIUS (Remote Authentication Dial-In User Service) server and proxy, included with Windows Server 2012 R2. NPS centralizes authentication, authorization, and accounting for network access—including VPN connections, 802.1X wired and wireless connections, dial-up connections, […]
How to Set Up LAPS Advanced Configuration on Windows Server 2012 R2 Local Administrator Password Solution (LAPS) is a Microsoft tool that automatically manages unique, randomly generated local Administrator passwords for every computer in Active Directory. Without LAPS, organizations often set the same local Administrator password on all machines, which means that compromising one system […]
How to Configure Security Compliance Baselines on Windows Server 2012 R2 Microsoft’s Security Compliance Toolkit (SCT) provides pre-built, tested Group Policy baselines for Windows Server 2012 R2 that align with both Microsoft’s own security recommendations and industry frameworks such as CIS and NIST. Rather than building a security baseline from scratch, the SCT gives you […]
How to Implement AppLocker Policies on Windows Server 2012 R2 AppLocker is a feature introduced in Windows Server 2008 R2 that allows administrators to specify exactly which applications, scripts, Windows Installer files, and DLLs are permitted to run. On Windows Server 2012 R2, AppLocker provides application whitelisting—one of the highest-value security controls available because it […]
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