permissions required to register SPNs in AD

Hello Experts,

I would like to know exactly what permissions are required in AD to register SPN commands in AD. My SQL team is unable to perform and run spn commands to register some virtual names that belongs to SQL servers instances that refers to cluster virtual name

 According to some of the documentation I've read the service account for SQL server will create an SPN when the database engine starts up, allowing for kerberos authentication. I haven't been able to find any documentation that states what permission an account would need to create an SPN. So, what permissions would an account need to have (barring domain admin if that's possible) in order to create an SPN?

Please, provide steps by steps instruction with screenshots about permissions required to register SPN for SQL server instances on Windows 2012 R2 failover clusters
Jerry SeinfieldAsked:
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PadawanDBAOperational DBACommented:
Pretty sure all the service accounts need is read and write serviceprincipalname permissions to service account user objects.  Or if you have all of these in an OU, you can delegate permissions to that OU.  It'll be similar to the following:

edit:  oh yeah... i just noticed you said this is for failover clusters...  automatic spn registration is not recommended for failover clusters, read the note at the bottom of this (and also the last comment):

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