What is a Kerberos SPN?

What is a Kerberos SPN?

A service principal name (SPN) is a unique identifier of a service instance. SPNs are used by Kerberos authentication to associate a service instance with a service logon account. This allows a client application to request that the service authenticate an account even if the client does not have the account name.

Where can I find Kerberos SPN?

Viewing SPNs To view a list of the SPNs that a computer has registered with Active Directory from a command prompt, use the setspn –l hostname command, where hostname is the actual host name of the computer object that you want to query.

Is Active Directory using Kerberos?

Active Directory uses Kerberos version 5 as authentication protocol in order to provide authentication between server and client. Kerberos v5 became default authentication protocol for windows server from windows server 2003.

How do I create an Active Directory SPN?

Configure Service Principal Names (SPN)

1. On the Domain Controller machine, start Active Directory Users and Computers.
2. Select View > Advanced.
3. Under Computers, locate one of the Network Controller machine accounts, and then right-click and select Properties.
4. Select the Security tab and click Advanced.

What is SPN and is used in Active Directory?

A Service Principal Name (SPN) is a name in Active Directory that a client uses to uniquely identify an instance of a service. An SPN combines a service name with a computer and user account to form a type of service ID.

How do I enable Kerberos in Active Directory?

Configuring Kerberos authentication with Active Directory

1. Enter the user’s First name and User logon name.
2. Specify the Password and confirm the password. Select the User cannot change password and Password never expires check boxes.
3. Verify that you have not selected the Require preauthentication check box.

How do I find service principal name in Active Directory?

View SPNs in Active Directory After enabling it, go to the desired AD object, choose Properties and go to the Attribute Editor tab: Then look for the attribute servicePrincipalName and click Edit. Here you will see a list of all the SPNs and also the ability to add SPNs.

How do I check if a SPN exists?

Verify SPN has been successfully registered Using SETSPN Command Line Utility. In Command Line enter the following command: setspn -L and press enter. Next, you need to look for registered ServicePrincipalName to ensure that a valid SPN has been created for the SQL Server.

How does Kerberos work in Active Directory?

Kerberos is an authentication protocol enabling systems and users to prove their identity through a trusted third-party. The Kerberos implementation found within Microsoft Active Directory is based on the Kerberos Network Authentication Service (V5), which is detailed in RFC 4120.

How do I create a Kerberos principal in Active Directory?

1. Determine the Kerberos Service Principal Level.
2. Configure the Kerberos Configuration File.
3. Create Kerberos Principal Accounts in Active Directory.
4. Generate the Service Principal Name and Keytab File Name Formats.
5. Generate the Keytab Files.
6. Enable Delegation for the Kerberos Principal User Accounts in Active Directory.

What SPN means?

service principal name
SPN, short for service principal name, is the name by which a client uniquely identifies an instance of a service. For example, an SPN always includes the name of the host computer on which the service instance is running, so a service instance might register an SPN for each name or alias of its host.

What does the SPN mean in Kerberos authentication?

The SPN is a unique identifier for the Network Controller service instance, which is used by Kerberos authentication to associate a service instance with a service login account. For more details, see Service Principal Names.

How are service principal names used in Kerberos?

A service principal name (SPN) is a unique identifier of a service instance. SPNs are used by Kerberos authentication to associate a service instance with a service logon account.

How to configure service principal names ( SPN ) in Active Directory?

Configure Service Principal Names (SPN) 1 On the Domain Controller machine, start Active Directory Users and Computers. 2 Select View > Advanced. 3 Under Computers, locate one of the Network Controller machine accounts, and then right-click and select Properties. 4 Select the Security tab and click Advanced.

Can a network controller use an IP address for Kerberos?

Once you provide permission, Network Controller registers the SPN automatically, and all client operations use Kerberos. Typically, you can configure Network Controller to use an IP address or DNS name for REST-based operations. However, when you configure Kerberos, you cannot use an IP address for REST queries to Network Controller.