Introduction to Active Directory Tiered Administration The Active Directory Tiered Administration Model is a security architecture published by Microsoft that segregates administrative accounts into three tiers to contain the spread of compromised credentials. The fundamental insight is that a compromised workstation admin account should never be able to escalate to domain controller access, and the […]
Understanding SAML/SSO Integration on Windows Server 2019 Security Assertion Markup Language (SAML) 2.0 enables Single Sign-On (SSO) between an Identity Provider (IdP) and Service Providers (SPs). Active Directory Federation Services (AD FS) on Windows Server 2019 acts as a SAML 2.0 Identity Provider, allowing users to authenticate once with their on-premises Active Directory credentials and […]
Overview: Azure AD Integration with Windows Server 2019 Integrating Windows Server 2019 with Azure Active Directory (Azure AD, now called Microsoft Entra ID) extends on-premises identity to the cloud. This enables single sign-on across Microsoft 365, Azure resources, and thousands of SaaS applications. The primary integration tool is Azure AD Connect, which synchronizes on-premises AD […]
What Is PowerShell Desired State Configuration? Desired State Configuration (DSC) is a PowerShell management platform that allows administrators to declaratively define the desired state of servers and continuously enforce that state. Rather than running imperative scripts that might leave servers in inconsistent states, DSC configurations describe what a server should look like—which features are installed, […]
Understanding the Two Windows Server 2019 Servicing Channels Microsoft offers Windows Server through two distinct servicing models: the Long-Term Servicing Channel (LTSC) and the Semi-Annual Channel (SAC). Choosing between them affects how frequently you receive new features, how long you receive security support, and what workloads are supported. Windows Server 2019 itself is an LTSC […]
What Is Just Enough Administration (JEA)? Just Enough Administration (JEA) is a PowerShell security technology built into Windows Server 2019 that allows administrators to delegate specific administrative tasks without granting full administrative privileges. With JEA, a help desk operator can restart a service or reset a password through a constrained PowerShell endpoint that exposes only […]
Introduction: Managing Active Directory at Scale with PowerShell When an Active Directory environment grows to thousands of users, hundreds of groups, and dozens of OUs, the graphical tools become a bottleneck. PowerShell and the ActiveDirectory module—installed by default on Windows Server 2019 domain controllers and available on member servers via RSAT—provide the primitives for bulk […]
Introduction to Advanced PowerShell Scripting for Windows Server 2019 Windows Server 2019 ships with PowerShell 5.1 by default, and PowerShell 7.x can be installed side-by-side. Advanced scripting on this platform goes well beyond one-liners. A professional administrator writes scripts that are modular, error-tolerant, self-documenting, and safe to run in production. This guide covers the patterns […]
Introduction to VPN Site-to-Site with Windows RRAS on Windows Server 2019 A site-to-site VPN creates a permanent encrypted tunnel between two networks over the internet, allowing devices at both sites to communicate as if they were on the same LAN. Windows Server 2019 RRAS (Routing and Remote Access Service) can establish site-to-site VPN connections using […]
Introduction to DHCP Failover on Windows Server 2019 DHCP Failover in Windows Server 2019 enables two DHCP servers to share a scope’s IP address pool, providing continuous DHCP service even if one server fails. This is far superior to the older “split scope” approach where each server held half the addresses, because DHCP Failover allows […]
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