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Road Map for Successful On-premises Data center Application Servers to Microsoft Office 365 Cloud and Azure

In this article, we are going to see a plan to migrate On-premises Datacenter Microsoft servers to Microsoft Office 365 Cloud and Azure.

Today's world each and every organization is willing to migrate their datacenter to cloud, this article will help you to understand the procedure to migrate Microsoft application servers like Exchange, SFBO / Lync, Domain Controller, AD servers, One Drive, SharePoint to Microsoft cloud.

Plan a road map to achieve migration successfully. 

1.       To determine the Road Map To Achieve migration Goals
2.       To determine the inventory of the current environment
a.      We need to prepare an inventory to list out, How many domains, branches, users, on-premises server versions, the client device is available in the organization
3.       To fix any blockers if identified between environments
a.      Make sure if any blockers for migration, such as different versions and need to check compatibility issues between servers and client devices. 

Plan for Provision of O365 

1.       Setup an Office 365 Tenant.
a.       Create a tenant trial account with Mail.
2.       Plan & Determine Features and Functionalities are available by Region.
a.       Decide to buy licenses, based on region or buy for one region and utilize.
b.       Plan & Determine Administrator Roles for IT Admins
c.       We need to find the features and functionalities, for example, some features not available in India such as we can't dial PSTN call.
3.       Plan & Determine Tenant Subscription & Licenses
a.       We want to decide who are all work in the initial stage of migration and further future, how we are going to give a charge to others. 

Plan Add and Configure Custom Domains

1.       Plan to add and confirm domain Ownership.
a.       Configure organization( custom domain by using TXT & an MX record to confirm our Domain Ownership with our domain hosted or domain provider (Go-daddy / Azure DNS)
2.       Plan and set up domain purpose (Required Exchange Records, Lync or SFBO Records, MDM Records, & Additional Records MSOID, etc.) for all domains
a.       Configure Required Exchange Records, Lync or SFBO Records (SIP Protocol), MDM Records, & Additional records.
3.       Plan & transfer Microsoft domain to Ownership Domain
a.       We should transfer our account domain to custom domain 

Plan & Determine Migrating Objects 

1.       Plan for AD Sync.
a.       Prepare On-premises Active Directory For Azure AD Connect
                                       i.    We need to clean the Host by using of AD Clean up tool (For cleaning UPN Suffixes valid character no duplicates) and synchronizing non-routable domains, filtering AD Objects for synchronization, implement support for multiple forests.

                                     ii.    We need three-components to migrate office 365, 1. Subscription, 2.Azure AD, 3. On-premises domain controller with AD.

                                   iii.    We have certain software requirements for Azure AD Connect Tool.

b.       Prepare On-Premises Active Directory For Azure AD Connect
                                       i.    We have two options to sync AD in AD Connect tool, if we have a single forest topology means, we can go with Express settings or Multiple Forest means will go with Custom Settings.

                                     ii.    By the help of AD Connect tool we can synchronize OU and other user data which we want to migrate.

                                   iii.    Also we sync All AD configurations like Password sync, pass through sync, ADFS Hybrid Configuration, etc.

c.       Verify by comparing On-premises Active Directory Users & Groups with Azure AD

d.       Implement and manage federated identities for SSO
                                       i.   Configure ADFS Farm in AD Connect Tool for Sync MFA, SSO, and Security features.

2.       Plan for Exchange Migration
a.       Plan to choose Mailbox Migration option and Start Migration.
                                       i.     We need to check and decide which migration choice (Cutover, Remote, Staged and Hybrid) is suitable for exchange migration and then start for migration.

b.       After Migration compare and check migrated mail boxes.

c.       Configure and Manage accessing mail box remotely (OWA, Active Sync, mobile device).

d.       Plan to define security configuration and configure security consideration & settings.
                                       i.   We need to decide security configuration based organization need and configure settings in eDiscovery, Litigation Hold, Data loss Prevention, Retention Tags.
e.       Plan and Configure Antimalware and Spam Configurations.

f.        Plan and Configure Archive policies and delegating permissions or users and groups.

3.       Plan and decide for SFBO or Lync or Teams Migration
a.       To choose Migration option (Cutover or hybrid) and Migrate.

b.       After migration check and fix any configuration obstacles. 

4.        Plan for Share point and OneDrive Migration.
a.       Migrate SharePoint and OneDrive data to SharePoint and OneDrive online.

b.       Configure security and compliance for SharePoint and OneDrive.
                                       i.   Configure IRM and DLP settings. 

Plan to Configure and Manage O365 Clients and Devices 

1.       Understand and explore modern authentication in all client devices.

2.       Identify Desktop OS Version, Patches, Browser version in Client Devices

3.       Plan to install O365 related application and telemetry service in Client devices.

4.       Allow O365 web links in the on-premises firewall if blocked. 

Post Migration 

1.       Plan and Execute Rollout Plan.

2.       Begin with small test / Pilot groups.

3.       Expand rollout across the organization.

4.       Expand usage of adopted apps and services.

5.       Use integrations between apps and services.

6.       Learn new user needs and repeat the cycle.

I hope this article will help you to migrate, please share and subscribe

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Tech Optimist, Senior Software Engineer, Blogger, Youtuber.

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