authentication

How to Set Up Active Directory Tiered Administration on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Set Up Active Directory Tiered Administration on Windows Server 2012 R2

How to Set Up Active Directory Tiered Administration on Windows Server 2012 R2 The Microsoft Active Directory Tiered Administration model is a security architecture that separates administrative accounts and systems into three tiers to prevent credential theft attacks from escalating across the entire environment. Tier 0 contains the most critical assets — Domain Controllers, PKI […]

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How to Install Nexus Repository Manager on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Install Nexus Repository Manager on RHEL 9

Sonatype Nexus Repository Manager is a universal binary repository that centralizes storage and distribution of build artifacts across your organization. It supports Maven JARs, npm packages, Docker images, Python packages, RubyGems, and more — acting as both a proxy for upstream registries and a private hosted repository. In large teams and CI/CD pipelines, Nexus reduces […]

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How to Configure SAML SSO with AD FS 3.0 on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Configure SAML SSO with AD FS 3.0 on Windows Server 2012 R2

How to Configure SAML SSO with AD FS 3.0 on Windows Server 2012 R2 Active Directory Federation Services 3.0 (AD FS 3.0), included with Windows Server 2012 R2, enables SAML 2.0 and WS-Federation based Single Sign-On for web applications and cloud services. Organizations use AD FS to federate their on-premises Active Directory identity to external […]

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How to Integrate Windows Server 2012 R2 with Azure Active Directory — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Integrate Windows Server 2012 R2 with Azure Active Directory

How to Integrate Windows Server 2012 R2 with Azure Active Directory Integrating an on-premises Windows Server 2012 R2 Active Directory environment with Azure Active Directory (Azure AD) enables hybrid identity scenarios: users authenticate once with their on-premises credentials and gain access to cloud services including Office 365, Azure portal resources, and third-party SaaS applications. The […]

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How to Configure a DSC Pull Server on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Configure a DSC Pull Server on Windows Server 2012 R2

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 […]

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How to Install and Use Helm for Kubernetes Package Management on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Install and Use Helm for Kubernetes Package Management on RHEL 9

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 […]

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How to Register a GitHub Actions Self-Hosted Runner on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Register a GitHub Actions Self-Hosted Runner on RHEL 9

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 […]

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How to Use Terraform to Provision Infrastructure on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Use Terraform to Provision Infrastructure on RHEL 9

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 […]

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How to Write Advanced PowerShell Scripts for Windows Server 2012 R2 Administration — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Write Advanced PowerShell Scripts for Windows Server 2012 R2 Administration

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 […]

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How to Write Ansible Playbooks for Server Automation on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Write Ansible Playbooks for Server Automation on RHEL 9

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 […]

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