Why "dig foo" fails but "dig +trace foo" succeeds?

Norman Joseph joseph at ctc.com
Tue Nov 16 17:12:36 UTC 2004


Is there anyone who can explain this behavior to me?

  # dig www.powweb.com
   <...waits patiently...>
  ; <<>> DiG 9.2.4rc6 <<>> www.powweb.com
  ;; global options:  printcmd
  ;; connection timed out; no servers could be reached
  #

  # dig +trace www.powweb.com

  ; <<>> DiG 9.2.4rc6 <<>> +trace www.powweb.com
  ;; global options:  printcmd
  .                       502538  IN      NS      K.ROOT-SERVERS.NET.
  .                       502538  IN      NS      L.ROOT-SERVERS.NET.
  .                       502538  IN      NS      M.ROOT-SERVERS.NET.
  .                       502538  IN      NS      A.ROOT-SERVERS.NET.
  .                       502538  IN      NS      B.ROOT-SERVERS.NET.
  .                       502538  IN      NS      C.ROOT-SERVERS.NET.
  .                       502538  IN      NS      D.ROOT-SERVERS.NET.
  .                       502538  IN      NS      E.ROOT-SERVERS.NET.
  .                       502538  IN      NS      F.ROOT-SERVERS.NET.
  .                       502538  IN      NS      G.ROOT-SERVERS.NET.
  .                       502538  IN      NS      H.ROOT-SERVERS.NET.
  .                       502538  IN      NS      I.ROOT-SERVERS.NET.
  .                       502538  IN      NS      J.ROOT-SERVERS.NET.
  ;; Received 372 bytes from 147.160.1.6#53(147.160.1.6) in 1 ms
 
  com.                    172800  IN      NS      a.gtld-servers.net.
  com.                    172800  IN      NS      g.gtld-servers.net.
  com.                    172800  IN      NS      h.gtld-servers.net.
  com.                    172800  IN      NS      c.gtld-servers.net.
  com.                    172800  IN      NS      i.gtld-servers.net.
  com.                    172800  IN      NS      b.gtld-servers.net.
  com.                    172800  IN      NS      d.gtld-servers.net.
  com.                    172800  IN      NS      l.gtld-servers.net.
  com.                    172800  IN      NS      f.gtld-servers.net.
  com.                    172800  IN      NS      j.gtld-servers.net.
  com.                    172800  IN      NS      k.gtld-servers.net.
  com.                    172800  IN      NS      e.gtld-servers.net.
  com.                    172800  IN      NS      m.gtld-servers.net.
  ;; Received 504 bytes from 193.0.14.129#53(K.ROOT-SERVERS.NET) in 87 ms
 
  powweb.com.             172800  IN      NS      ns2.powweb.com.
  powweb.com.             172800  IN      NS      ns3.powweb.com.
  ;; Received 100 bytes from 192.5.6.30#53(a.gtld-servers.net) in 22 ms
 
  www.powweb.com.         3600    IN      A       66.152.97.130
  powweb.com.             3600    IN      NS      ns3.powweb.com.
  powweb.com.             3600    IN      NS      ns2.powweb.com.
  ;; Received 116 bytes from 66.152.97.4#53(ns2.powweb.com) in 81 ms
 
If it matters, this is on RHEL 3.0.



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