The ninth installment of the “Twelve Days of Blog-mas” series discusses the evolution of enterprise architectures from single-domain Active Directory forests to multi-domain ones, driven by business needs. The article explores the complexities and challenges of this transition, particularly in the context of the cloud era.

Welcome to the Multi-Tenant and Cross-Platform World
In the ninth edition of the Twelve Days of Blog-mas, we delve into the world of multi-tenant and cross-platform technologies. This is a world that has significantly evolved from the days of on-prem Active Directory being the hub of many enterprise architectures.
From Single-Domain to Multi-Domain AD Forests
Business needs have often driven the requirement to expand single-domain AD forests into multi-domain AD forests. This was especially true in the NT days, where one might have ‘Account Domains’ and ‘Resource Domains’ – connected via one-ways trusts.
“Before the cloud, when on-prem Active Directory was the hub of many enterprise architectures, business needs often drove the requirement to expand single-domain AD forests into multi-domain AD forests.”
The Evolution of NT 4.0 Domains
As technology evolved, multiple existing NT 4.0 domains were ‘upgraded’ into a single AD forest, as additional domains. This was a significant step forward in the evolution of enterprise architectures.
Embracing the Cloud
With the advent of cloud technology, the landscape of enterprise architectures has changed drastically. The cloud has brought about new opportunities and challenges, making it an exciting time for tech-savvy individuals and businesses alike.
“Greetings! Before the cloud, when on-prem Active Directory was the hub of many enterprise architectures…”
Stay tuned for more insights into the multi-tenant and cross-platform world in the upcoming editions of the Twelve Days of Blog-mas.
From the Core Infrastructure and Security Blog