Detect lame delegation with dig

1. Get delegation from parent
with "+norecurse" to make the intent clear
  % dig @203.178.141.194 www.lame.jinmei.org +norecurse
  ...
  ;; AUTHORITY SECTION:
  lame.jinmei.org.        86400   IN      NS      ns.lame.jinmei.org.
  ;; ADDITIONAL SECTION:
  ns.lame.jinmei.org.     86400   IN      A       202.249.10.124

2. Send query to the lame server
check if "aa" flag is set in the response
  % dig @202.249.10.124 www.lame.jinmei.org +norecurse
  ...
  ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 11840
  ;;   flags: qr ra;   QUERY: 1, ANSWER: 0, AUTHORITY: 2, ADDITIONAL: 2
  ;; QUESTION SECTION:
  ;www.lame.jinmei.org.           IN      A
  ;; AUTHORITY SECTION:
  org.                    40698   IN      NS      TLD1.ULTRADNS.NET.
  org.                    40698   IN      NS      TLD2.ULTRADNS.NET.
  ...