Domain Controller Migration
Overview
This project focused on migrating the Active Directory Domain Controller infrastructure from btpn.com to btpnsyariah.com as part of organizational transformation and infrastructure standardization initiatives.
The migration process involved Active Directory preparation, DNS restructuring, Group Policy migration, replication validation, and authentication service optimization to ensure stable enterprise operations across all environments.
The project was executed using a staged migration approach with continuous monitoring and rollback planning to minimize operational risks and avoid service disruption during the transition process.
Key responsibilities included Domain Controller health checks, FSMO role validation, DNS synchronization, Active Directory replication monitoring, user and computer object validation, and post-migration infrastructure testing.
Role
System Administrator
Project Type
Active Directory Migration
Client
PT Bank BTPN Syariah Tbk
Project Challenge
The migration of Active Directory Domain Controller infrastructure from btpn.com to btpnsyariah.com involved multiple technical dependencies and critical enterprise services. The primary objective was to ensure a seamless migration process without disrupting authentication, authorization, and daily operational activities.
Since the environment supported enterprise-scale infrastructure, maintaining service availability, replication consistency, and Group Policy integrity became major priorities throughout the migration lifecycle.
Authentication Availability
Ensuring Active Directory authentication services, DNS resolution, and Single Sign-On functionality remained fully available during migration activities.
DNS Replication Consistency
Maintaining DNS synchronization and replication consistency across all Domain Controllers to prevent authentication failures.
Group Policy Migration
Migrating Group Policy Objects while preserving inheritance, permissions, and endpoint security policies.
Business Continuity
Preventing downtime and minimizing operational impact through phased migration and rollback planning.
To mitigate risks, a staged migration strategy was implemented, including infrastructure health checks, replication monitoring, pilot testing, rollback preparation, and post-migration validation.
Infrastructure Migration
The infrastructure migration process focused on transitioning Active Directory services from the legacy btpn.com environment to the new btpnsyariah.com domain architecture while maintaining enterprise authentication stability and operational continuity.
Migration activities included FSMO role validation, Active Directory health checks, DNS synchronization, replication monitoring, server validation, and phased migration execution across all Domain Controllers.
A staged migration strategy was implemented to minimize operational risks, allowing infrastructure validation, rollback preparation, and service monitoring throughout the migration lifecycle.
Active Directory Health Check
Performed Domain Controller diagnostics, replication validation, and infrastructure readiness assessments before migration activities.
Replication Synchronization
Monitored Active Directory replication consistency and ensured synchronization between all Domain Controllers during transition phases.
DNS & Authentication Validation
Verified DNS resolution, authentication services, and trust relationship integrity across enterprise systems.
Infrastructure Transition
Migrated server infrastructure, user authentication, and shared enterprise resources gradually using phased deployment methodology.
Post-migration validation was conducted to ensure all enterprise services, user authentication processes, DNS resolution, and Group Policy configurations operated normally after cutover.
DNS & Group Policy
DNS and Group Policy migration activities were performed as part of the Domain Controller migration from btpn.com to btpnsyariah.com to ensure enterprise authentication, endpoint management, and organizational security policies remained fully operational throughout the migration process.
DNS namespace validation, replication monitoring, and Group Policy synchronization were continuously executed to maintain infrastructure stability and prevent authentication failures across all enterprise systems.
Existing Group Policy Objects (GPO) were reviewed, validated, and migrated gradually to preserve security baselines, user restrictions, login configurations, mapped drives, printer deployment, and enterprise endpoint compliance settings.
DNS Namespace Validation
Validated forward lookup zones, reverse lookup zones, DNS forwarding, and name resolution consistency between legacy and new domain environments.
DNS Replication Monitoring
Continuously monitored DNS replication health and synchronization status across all Domain Controllers to prevent service disruption during migration activities.
Group Policy Migration
Migrated Group Policy Objects gradually while preserving inheritance structure, security filtering, login scripts, and enterprise access configurations.
Endpoint Validation
Validated endpoint policy application, mapped drives, printer deployment, authentication behavior, and user access configurations after migration completion.
Post-migration verification was conducted to ensure DNS resolution, Group Policy processing, enterprise authentication services, and endpoint configurations operated normally within the new btpnsyariah.com domain environment.
Solutions
The Domain Controller migration from btpn.com to btpnsyariah.com was completed successfully using a staged deployment strategy, infrastructure validation, rollback preparation, and continuous monitoring throughout the migration lifecycle.
The migration approach focused on minimizing operational risks, maintaining authentication availability, preserving enterprise security policies, and ensuring business continuity across all infrastructure services.
Multiple validation phases were implemented before, during, and after migration activities to ensure Active Directory replication, DNS synchronization, Group Policy processing, and enterprise authentication services operated normally within the new domain environment.
Staged Deployment Strategy
Migration activities were executed gradually to minimize operational impact and ensure stable infrastructure transition across enterprise services.
Rollback Preparation
Rollback procedures and recovery planning were prepared to mitigate risks and maintain business continuity during migration execution.
Continuous Monitoring
Active Directory replication, DNS synchronization, authentication services, and Domain Controller health were continuously monitored.
Post-Migration Validation
Comprehensive validation testing ensured endpoint authentication, Group Policy processing, DNS resolution, and enterprise applications operated normally after migration.
Following migration completion, all authentication services, enterprise applications, endpoint management policies, and shared infrastructure resources continued operating normally under the new btpnsyariah.com domain environment.
The project successfully improved infrastructure standardization, domain management consistency, authentication reliability, and enterprise operational readiness while minimizing downtime and preserving business continuity.
