:: All OUs
dsquery ou DC=<domain>,DC=<tld>
:: All DCs
netdom query dc
:: All Servers
netdom query server
dsquery computer "OU=<servers>,DC=<domain>,DC=<tld>"
:: All Workstations
netdom query workstation
dsquery computer "OU=<workstations>,DC=<domain>,DC=<tld>"
:: OUs which user has rights to create computer object
netdom query ou
:: FSMO servers
netdom query fsmo