找出網域的KMS主機

http://kb.wisc.edu/page.php?id=7770

If a SRV record exists for the domain, the DNS server will detail the SRV record.

C:\>nslookup -type=srv _vlmcs._tcp
Server:  rdns1.doit.wisc.edu
Address:  128.104.254.254

Non-authoritative answer:
_vlmcs._tcp..wisc.edu       SRV service location:
          priority       = 0
          weight         = 0
          port           = 1688
          svr hostname   = ms-kms-1.services.wisc.edu

p.s.KMS Server預設的port是1688