root server query question
tforeman at ibsys.com
tforeman at ibsys.com
Thu Apr 28 20:17:12 UTC 2005
Okay, you don't really want to query the root servers.
This is how the resolver works:
dig +trace www.msnbc.com
***** These are the Root Servers *****
; <<>> DiG 9.2.3 <<>> +trace www.msnbc.com
;; global options: printcmd
. 3600000 IN NS I.ROOT-SERVERS.NET.
. 3600000 IN NS J.ROOT-SERVERS.NET.
. 3600000 IN NS K.ROOT-SERVERS.NET.
. 3600000 IN NS L.ROOT-SERVERS.NET.
. 3600000 IN NS M.ROOT-SERVERS.NET.
. 3600000 IN NS A.ROOT-SERVERS.NET.
. 3600000 IN NS B.ROOT-SERVERS.NET.
. 3600000 IN NS C.ROOT-SERVERS.NET.
. 3600000 IN NS D.ROOT-SERVERS.NET.
. 3600000 IN NS E.ROOT-SERVERS.NET.
. 3600000 IN NS F.ROOT-SERVERS.NET.
. 3600000 IN NS G.ROOT-SERVERS.NET.
. 3600000 IN NS H.ROOT-SERVERS.NET.
;; Received 260 bytes from 192.168.100.20#53(192.168.100.20) in 5 ms
***** These are the .com servers ******
com. 172800 IN NS E.GTLD-SERVERS.NET.
com. 172800 IN NS F.GTLD-SERVERS.NET.
com. 172800 IN NS G.GTLD-SERVERS.NET.
com. 172800 IN NS H.GTLD-SERVERS.NET.
com. 172800 IN NS I.GTLD-SERVERS.NET.
com. 172800 IN NS J.GTLD-SERVERS.NET.
com. 172800 IN NS K.GTLD-SERVERS.NET.
com. 172800 IN NS L.GTLD-SERVERS.NET.
com. 172800 IN NS M.GTLD-SERVERS.NET.
com. 172800 IN NS A.GTLD-SERVERS.NET.
com. 172800 IN NS B.GTLD-SERVERS.NET.
com. 172800 IN NS C.GTLD-SERVERS.NET.
com. 172800 IN NS D.GTLD-SERVERS.NET.
;; Received 503 bytes from 192.36.148.17#53(I.ROOT-SERVERS.NET) in 99 ms
***** These are msnbc's servers ******
msnbc.com. 172800 IN NS ns1.msft.net.
msnbc.com. 172800 IN NS ns2.msft.net.
msnbc.com. 172800 IN NS ns3.msft.net.
msnbc.com. 172800 IN NS ns4.msft.net.
msnbc.com. 172800 IN NS ns5.msft.net.
;; Received 209 bytes from 192.12.94.30#53(E.GTLD-SERVERS.NET) in 118 ms
www.msnbc.com. 900 IN CNAME lb.msnbc.com.
;; Received 48 bytes from 207.46.245.230#53(ns1.msft.net) in 127 ms
So if you are looking for a .com domain, you would query one of the
.com servers
--Tim
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