- You have the "host" utility from BIND.
- You can do a zone transfer from the local DNS server
- Your Active Directory admins have properly configured DNS for Active Directory
If you have the above, use the following command:
host -t srv -l your.active.directory.dns.domain | grep _kerberos._tcp.*._sites.dc._msdcs.your.active.directory.dns.domain
Replace your.active.directory.dns.domain with your actual AD DNS domain.