WHITE PAPER BT Sync, the alternative for DirSync during Migrations

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Lewis Singleton
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1 WHITE PAPER BT Sync, the alternative for DirSync during Migrations

2 INTRODUCTION When you have a migration from Exchange on Premises, you definitely have an Active Directory set up. It is a logical decision to want your Active Directory synchronized with Office 365. When you follow the guidelines of Microsoft you ll read that the Directory Synchronization (DirSync) tool is the best way to go. BUT IS IT REALLY? Do you know that by activating DirSync in an Exchange on Premises environment you make it impossible to migrate you mailboxes except by using the Microsoft Built In tools. Because of DirSync Office 365 doesn t make cloud mailboxes when you assign a license to your users. MigrationWiz needs a destination mailbox to store all the migrated mails, contacts, calendar, etc. So you might want to choose for the built in tools from Microsoft but are they your best choice? We think not. These are few objective reasons why MigrationWiz is the better choice: 1. Unlimited scalability, supported by 5 data centers worldwide, to migrate as many mailboxes concurrently at any given second, without throttling. 2. No public certificate required. Supports self-signed certificates in addition to non-ssl migration. 3. No special configuration on source server. 4. Strong error resolutions with rich granular statistics, in real time, including status and failure errors. 5. Can apply filters to migration such as date, item types, etc x7 technical, high skilled support, same day resolution.

Do you know that by activating DirSync in an Exchange on Premises environment you make it impossible to migrate you mailboxes except by using the Microsoft Built In tools.

3 WHAT S THE ALTERNATIVE? BitTitan has a solutions that will allow you to synchronize your local Active Directory to Office 365 without the limitations of DirSync. REQUIREMENTS Domain joined computer or server Microsoft Windows PowerShell 2.0 Microsoft.NET Framework 3.5 MigrationWiz PowerShell Commandlets Enable PowerShell of your MigrationWiz account WHAT ATTRIBUTES DO WE SYNC USERS Office 365 Attribute DisplayName External Address FirstName Initials Lastname MicrosoftOnlineServicesID Name Alias AD Attribute Mail givenname Initials Sn userprincipalname If mailnickname exists we use mailnickname If not we get the alias out of the mail attribute The Password for the users is a definable field in our script or you can choose to generate a random one. It is not retrieved from the Active Directory and synced.

5 MigrationWiz PowerShell Commandlets Enable PowerShell of your MigrationWiz account WHAT ATTRIBUTES DO WE SYNC USERS Office 365 Attribute DisplayName ExternalEmailAddress FirstName Initials Lastname

4 GROUPS Office 365 Attribute DisplayName Name PrimarySmtpAddress Alias MemberShips AD Attribute Mail If mailnickname exists we use mailnickname If not we get the alias out of the mail attribute All the users that are a member of the group. CONTACTS Office 365 Attribute DisplayName External Address FirstName Initials Lastname MicrosoftOnlineServicesID Name Alias AD Attribute Mail givenname Initials Sn userprincipalname If mailnickname exists we use mailnickname If not we get the alias out of the mail attribute

CONTACTS Office 365 Attribute DisplayName ExternalEmailAddress FirstName Initials Lastname MicrosoftOnlineServicesID Name Alias

5 STEP BY STEP ENABLE POWERSHELL ON MIGRATIONWIZ To enable PowerShell usage on your account: 1. Sign in to your MigrationWiz account. 2. If you do not see a Developer Settings section, your account is not authorized for remote access. Contact our technical support to have your account enabled. 3. Click Manage developer settings. 4. Select Enable remote access to account. 5. Click Save. INSTALL MIGRATIONWIZ COMMANDLETS 1. Go to Commandlets 2. Install (if necessary) Microsoft Windows PowerShell Install (if necessary) Microsoft.NET framework Install MigrationWiz Commandlets msi SYNCHRONIZE 1. Login to the Office 365 Portal and disable DirSync if necessary. 2. Login to the computer with administrative credentials that has read access to the Active Directory objects and has the MigrationWiz commandlets installed. 3. Launch the MigrationWiz Command Shell from the start menu. 4. Execute the script downloaded from the command shell by navigating to the directory where the script resides and typing.\syncactivedirectorytooffice365.ps1 and pressing enter.

Select Enable remote access to account. 5. Click Save. INSTALL MIGRATIONWIZ COMMANDLETS 1. Go to Commandlets 2. Install (if necessary) Microsoft Windows PowerShell 3.0 3.

6 THE SCRIPT 1. Enter your MigationWiz account credentials 2. Enter your Office 365 Global Administrator account credentials

3. Select what you want to synchronize. 4. Select what you want to do. Our tool allows you to simulate what will happen when you do a sync with or without delete.

7 3. Select what you want to synchronize. 4. Select what you want to do. Our tool allows you to simulate what will happen when you do a sync with or without delete. This guarantees the desired result without the risk of an unforeseen update, delete or add. If you want a risk free synchronization after the simulation use our Sync without delete option. This will allow our tool to add and to update users, contacts and groups without the risk of deleting one. 5. Groups: If you choose to add Groups make sure to do a second run of our tool after the creation of the groups. It s during the second run that the membership are being assigned between users and groups.

If you want a risk free synchronization after the simulation use our Sync without delete option.

8 FILTERING Just as DirSync our BT Sync tool allows you synchronize only a subset of your local Active Directory. When you open our SyncActiveDirectoryToOffice365.ps1 script you have multiple filter options $USERROOTSEARCHCONTAINER # Active Directory root search container for users. The default is the root of the domain. # i.e. OU=Users,DC=example,DC=com $CONTACTROOTSEARCHCONTAINER # Active Directory root search container for users. The default is the root of the domain. # i.e. OU=Contacts,DC=example,DC=com $GROUPROOTSEARCHCONTAINER # Active Directory root search container for users. The default is the root of the domain. # i.e. OU=Groups,DC=example,DC=com We also allow you to filter certain users, groups or contact based on attributes $USERSEARCHFILTER # User LDAP search filter. Default value is: # (&(objectcategory=person)(objectclass=user)(=*)(mail=*)(userprincipalname=*)) $CONTACTSEARCHFILTER # Contact LDAP search filter. Default value is: # (&(objectcategory=person)(objectclass=contact)(=*)(mail=*)) $GROUPSEARCHFILTER # Group LDAP search filter. Default value is: # (&(objectclass=group)(=*)(mail=*))

The default is the root of the domain. # i.e. OU=Contacts,DC=example,DC=com $GROUPROOTSEARCHCONTAINER # Active Directory root search container for users. The default is the root of the domain. # i.e. OU=Groups,DC=example,DC=com We also allow you to filter certain users, groups or contact based on attributes $USERSEARCHFILTER # User LDAP search filter.

9 WHAT IF YOU WANT TO USE DIRSYNC AFTER SYNC If you want to use DirSync after the Migration due to requirements for automatic synchronizations, password synchronization, you can choose to do so. 1. Activate DirSync on your tenant 2. Run the following script. This will make sure that DirSync connects the right Office 365 User to your local Active Directory Users Import-Module MSOnline Import-module activedirectory $user = <enter username for Office 365> $password = <enter password for office 365> $secpasswd = ConvertTo-SecureString $password -AsPlainText -Force $credential = New-Object System.Management.Automation.PsCredential($user,$secpasswd) Connect-MsolService -Credential $credential foreach ($user in (Get-MsolUser -All)) { $ADUser = Get-ADUser -filter {UserPrincipalName -eq $user.userprincipalname} -Properties * $guid = [GUID]$ADUser.ObjectGUID $bytearray = $guid.tobytearray() $immutableid = [system.convert]::tobase64string($bytearray) Set-MsolUser -UserPrincipalName $user.userprincipalname -ImmutableId $immutableid } 3. Run DirSync to synchronize.

This will make sure that DirSync connects the right Office 365 User to your local Active Directory Users Import-Module MSOnline Import-module activedirectory $user = <enter username for Office 365>

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