To be able to make use of Managed Service Accounts with SQL Server, there are certain prerequisites that need to be met: 1. I created the gMSA in the root domain and configured Azure ATP to use this account to connect to Active Directory. This is where group Managed Service Accounts (gMSA) differ from Managed Service Accounts (MSA). Another common finding is that accounts were created long ago and current support staff are not sure on which systems the account are used. This document describes how to get started with them. This prevents password generation before all Domain Controllers are capable of answering the password requests. To determine if the root key exists I run Get-KdsRootKey in my forest root domain and child domain using Windows PowerShell. The Managed Service Accounts in Windows2008R2 offered two distinct features. This is a safety measure to ensure all Domain Controllers converge their replication before allowing the creation of a gMSA. I haven’t found any detailed documents in regards to cross-domain usage of a gMSA account and have not been able to test in different scenarious. I will now update the first gMSA account by modifying the computers that can use the gMSA and also updating the KerberosEncryptionType value. Ensure you specify the required value during creation should you wish to use a custom password age for the account. Group Managed service accounts provides the same functionalities as managed service accounts but its extend its capabilities to host group levels. This ensure the service account is only used for it’s intended purpose of running a service. The password for the gMSAs (Group Managed Service Accounts) are generated and maintained by the Key Distribution Service (KDS, kdssvc.dll) on the Active Directory Domain controllers. Virtual Accounts, as discussed in Part One, are local computer accounts which must use the domain computer account if they need to reach out and access network resources.. This can also be updated later or you can specify the SamAccountName value that you want to use when creating the account. SQL Server 2012 or Higher 3. MSA (Managed Service Accounts) have been around since Windows Server 2008R2 with the latest incarceration of features being introduced with Windows 2012R2. gMSAs are not applicable to Windows operating systems prior to Windows Server 2012. create a group in Active Directory and add the computer accounts of the servers that you want to use a particular service account. We can now see that the account was created with the appropriate values that we specified during creation and is no longer using the default values as with the first account. I will also change the SamAccountName and add two ServicePrincipalNames (SPN’s) to demonstrate how this is done, because some services like SQL requires SPN’s to be defined. The primary difference being that MSA are used for standalone SQL instances, whereas clustered SQL instances require gMSA. The PrincipalsAllowedToRetrieveManagedPassword attribute now contains the distinguishedName of the security group that we specified. A Group Managed Service Account (gMSA) can be used for services running on multiple servers such as a server farm. The Azure ATP service started successfully on the child domain Domain Controller. A Group Managed Service Account (gMSA) can be used for services running on multiple servers such as a server farm. Assuming the user has the correct permissions, the key(s) will then be visible in Services, Group Key Distribution Service, Master … I will also specify a security group for the PrincipalsAllowedToRetrieveManagedPassword attribute instead of computer accounts. If you intend using Group Managed Service Accounts feature. gMSAs are not supported in SQL Server. Today we want to set up and pay attention to Group Managed Service Accounts (gMSA) who was introduced in Windows Server 2012 and Windows 8.. gMSA’s are specific user accounts in Active Directory and extends the successor Standalone Managed Service Accounts (sMSA).. A great documentation with technical background and details about sMSA you will find below. The group Managed Service Account (gMSA) provides the same functionality within the domain but also extends that functionality over multiple servers. The PrincipalsAllowedToRetrieveManagedPassword attribute on the account will provide a clear indication of where the service account is intended to be used, no guesswork required. A Key Distribution Services (KDS) root key is needed to support password generation for gMSAs. In the console, select View then select Show Services Node: You will find the root key under the Master Root Keys node: It is important to note that the root key will only be visible in the root domain of the forest, not in any of the child domains. A standalone Managed Service Account (sMSA) is a managed domain account that provides automatic password management, simplified service principal name (SPN) management and the ability to delegate the management to other administrators. Managed Service Account (MSA) Is a new type of Active Directory Account type where AD responsible for changing the account password every 30 days. Using PowerShell, creat… Create gMSA and specify Security Group to link the account and computers The following commands are used to create the group, add the computer objects as members of the newly created group, then check the … Also take note of the $ (dollar) sign at the end of the name, similar to computer objects. This type of managed service account (MSA) was introduced in Windows Server 2008 R2 and Windows 7. Group managed service accounts got following capabilities, • No Password Management The previous value which contained two servers was replaced so now instead of having 3 servers in the list, we end up with the 1 server that we specified with the Set-ADServiceAccount command. The password will automatically change and there is no need to update the password on the individual tasks. Introduce Windows Server 2012 or later DCs into the domain 1.2. Group managed service accounts require a key distribution service (KDS) using the AD PowerShell module. Password management requires no administration overhead as password management is handled automatically using Windows Server 2012 and later versions across multiple hosts. You will have to create a root key for the group key distribution service within Active Directory. 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