Here are some common Active Directory commands that you can use on a Windows Server 2019:
dcpromo: This command is used to promote or demote a domain controller. You can use this command to create a new domain or join an existing domain.dsadd: This command is used to create objects in Active Directory, such as users, groups, and organizational units.dsquery: This command is used to query Active Directory for information about objects. You can use this command to find users, groups, computers, and other objects in Active Directory.dsmod: This command is used to modify objects in Active Directory. You can use this command to change properties of users, groups, and other objects.dsrm: This command is used to delete objects in Active Directory.netdom: This command is used to manage domains and domain controllers. You can use this command to join computers to a domain, create trusts between domains, and manage domain controllers.repadmin: This command is used to manage replication between domain controllers. You can use this command to force replication, check the status of replication, and diagnose replication issues.dcdiag: This command is used to diagnose issues with domain controllers. You can use this command to check the health of the Active Directory environment, identify replication issues, and diagnose problems with DNS.
These are just a few of the many commands available for managing Active Directory on a Windows Server 2019. You can use the help command followed by the command name to get more information on a specific command, or refer to the official documentation from Microsoft for more detailed information on using Active Directory commands.