title: Using nslookup to find what name servers were contacted in a query
body: <p>I'm using <code>nslookup</code> to find the DNS name that has the a given IP address as one of its associated addresses. So, I use nslookup interactively...</p>
  
  <pre><code>command line &gt; nslookup -
  set query=ptr
  24.248.56.68
  
  Non-authoritative answer:
  68.56.248.24.in-addr.arpa       name = wsip-24-248-56-68.ri.ri.cox.net.
  
  Authoritative answers can be found from:
  24.in-addr.arpa nameserver = x.arin.net.
  
  24.in-addr.arpa nameserver = u.arin.net.
  
  24.in-addr.arpa nameserver = t.arin.net.
  
  24.in-addr.arpa nameserver = v.arin.net.
  
  24.in-addr.arpa nameserver = dill.arin.net.
  
  24.in-addr.arpa nameserver = y.arin.net.
  
  24.in-addr.arpa nameserver = z.arin.net.
  
  24.in-addr.arpa nameserver = w.arin.net.
  
  t.arin.net      internet address = 199.253.249.63
  
  u.arin.net      internet address = 204.61.216.50
  
  u.arin.net      has AAAA address 2001:500:14:6050:ad::1
  
  v.arin.net      internet address = 63.243.194.2
  
  v.arin.net      has AAAA address 2001:5a0:10::2
  
  w.arin.net      internet address = 72.52.71.2
  
  w.arin.net      has AAAA address 2001:470:1a::2
  
  x.arin.net      internet address = 199.71.0.63
  
  x.arin.net      has AAAA address 2001:500:31::63
  
  y.arin.net      internet address = 192.42.93.32
  
  z.arin.net      internet address = 199.212.0.63
  
  z.arin.net      has AAAA address 2001:500:13::63
  
  dill.arin.net   internet address = 192.35.51.32
  </code></pre>
  
  <p>Now I want to find what name servers were contacted to do that lookup. I think I'm supposed to <code>set query=ns</code> but that returns the same answer. How can I find what name servers were contacted?</p>