trace ok but cannot get answer

Ken Lai soulhacker511 at gmail.com
Thu Aug 14 23:50:40 UTC 2008


Hi,
yesterday one of our customer complain cannot resolve the
*www.zaobao.com, *the dns server he used is 211.148.192.137. so i trace
it and get:
ken at ken-laptop ~ $ dig @211.148.192.137 www.zaobao.com +trace

; <<>> DiG 9.4.2-P1 <<>> @211.148.192.137 www.zaobao.com +trace
; (1 server found)
;; global options: printcmd
. 481468 IN NS C.ROOT-SERVERS.NET.
. 481468 IN NS A.ROOT-SERVERS.NET.
. 481468 IN NS J.ROOT-SERVERS.NET.
. 481468 IN NS B.ROOT-SERVERS.NET.
. 481468 IN NS G.ROOT-SERVERS.NET.
. 481468 IN NS L.ROOT-SERVERS.NET.
. 481468 IN NS E.ROOT-SERVERS.NET.
. 481468 IN NS M.ROOT-SERVERS.NET.
. 481468 IN NS H.ROOT-SERVERS.NET.
. 481468 IN NS I.ROOT-SERVERS.NET.
. 481468 IN NS D.ROOT-SERVERS.NET.
. 481468 IN NS K.ROOT-SERVERS.NET.
. 481468 IN NS F.ROOT-SERVERS.NET.
;; Received 500 bytes from 211.148.192.137#53(211.148.192.137) in 11 ms

com. 172800 IN NS B.GTLD-SERVERS.NET.
com. 172800 IN NS C.GTLD-SERVERS.NET.
com. 172800 IN NS D.GTLD-SERVERS.NET.
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.
;; Received 504 bytes from 198.41.0.4#53(A.ROOT-SERVERS.NET) in 278 ms

zaobao.com. 172800 IN NS ns1.asia1.com.sg.
zaobao.com. 172800 IN NS ns2.asia1.com.sg.
;; Received 80 bytes from 192.52.178.30#53(K.GTLD-SERVERS.NET) in 346 ms

www.zaobao.com. 360 IN CNAME zaobao.com.edgesuite.net.
zaobao.com.edgesuite.net. 9033 IN CNAME a1868.g.akamai.net.
g.akamai.net. 289 IN NS n4g.akamai.net.
g.akamai.net. 289 IN NS n6g.akamai.net.
g.akamai.net. 289 IN NS n2g.akamai.net.
g.akamai.net. 289 IN NS n8g.akamai.net.
g.akamai.net. 289 IN NS n3g.akamai.net.
g.akamai.net. 289 IN NS n5g.akamai.net.
g.akamai.net. 289 IN NS n0g.akamai.net.
g.akamai.net. 289 IN NS n1g.akamai.net.
g.akamai.net. 289 IN NS n7g.akamai.net.
;; Received 405 bytes from 202.27.17.253#53(ns1.asia1.com.sg) in 96 ms

but i get this also:

ken at ken-laptop ~ $ dig @211.148.192.137 www.zaobao.com

; <<>> DiG 9.4.2-P1 <<>> @211.148.192.137 www.zaobao.com
; (1 server found)
;; global options: printcmd
;; connection timed out; no servers could be reached

could anyone guide me, thx


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