$ sudo realm discover -v mems.local
 * Resolving: _ldap._tcp.mems.local
 * Resolving: mems.local
 ! Discovery timed out after 15 seconds
mems.local
  type: kerberos
  realm-name: MEMS.LOCAL
  domain-name: mems.local
  configured: no

$ nslookup -type=srv _ldap._tcp.mems.local
 Server:        172.17.21.20
 Address:   172.17.21.20#53

_ldap._tcp.mems.local   service = 0 100 389 mwinds2.mems.local.
_ldap._tcp.mems.local   service = 0 100 389 mwinds1.mems.local.