Domain Type Class TTL Answer
a134.g.akamai.net.6528acf.1.cn.akamaitech.net. A IN 20 67.130.109.38
a134.g.akamai.net.6528acf.1.cn.akamaitech.net. A IN 20 67.130.109.16
NOTE: One or more CNAMEs were encountered. auto.search.msn.com is really a134.g.akamai.net.6528acf.1.cn.akamaitech.net. [auto.search.msn.com->sea.search.msn.com->sea.search.msn.com.nsatc.net->
search.msn.com.edgesuite.net->a134.g.akamai.net->
a134.g.akamai.net.6528acf.1.cn.akamaitech.net]
再来看我们使用了上海热线DNS所解析出来的结果,我这里用BIND提供的dig工具来取结果:
# dig @202.96.209.5 A auto.search.msn.com
; <<>> DiG 9.2.4 <<>> @202.96.209.5 A auto.search.msn.com
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 18248
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 5, ADDITIONAL: 4
;; QUESTION SECTION:
;auto.search.msn.com. IN A
;; ANSWER SECTION:
auto.search.msn.com. 86400 IN A 218.30.64.194
;; AUTHORITY SECTION:
auto.search.msn.com. 86400 IN NS ns-puxi.online.sh.cn.
auto.search.msn.com. 86400 IN NS ns-pudong.online.sh.cn.
auto.search.msn.com. 86400 IN NS ns-pd.online.sh.cn.
auto.search.msn.com. 86400 IN NS ns-px.online.sh.cn.
auto.search.msn.com. 86400 IN NS ns-px2.online.sh.cn.
;; ADDITIONAL SECTION:
ns-pd.online.sh.cn. 86400 IN A 202.96.209.133
ns-px.online.sh.cn. 86400 IN A 202.96.209.5
ns-puxi.online.sh.cn. 86400 IN A 202.96.209.5
ns-pudong.online.sh.cn. 86400 IN A 202.96.209.133
Pinging notpresentxxxxxxxxxx.cn [218.83.175.154] with 32 bytes of data:
Reply from 218.83.175.154: bytes=32 time=124ms TTL=242
Reply from 218.83.175.154: bytes=32 time=122ms TTL=242
Reply from 218.83.175.154: bytes=32 time=134ms TTL=242
Reply from 218.83.175.154: bytes=32 time=134ms TTL=242
Ping statistics for 218.83.175.154:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 122ms, Maximum = 134ms, Average = 128ms
C:>ping dsfsdofhetfowefuwdf.com
Pinging dsfsdofhetfowefuwdf.com [218.83.175.154] with 32 bytes of data:
Reply from 218.83.175.154: bytes=32 time=126ms TTL=242
Reply from 218.83.175.154: bytes=32 time=125ms TTL=242
Reply from 218.83.175.154: bytes=32 time=116ms TTL=242
Reply from 218.83.175.154: bytes=32 time=118ms TTL=242
Ping statistics for 218.83.175.154:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 116ms, Maximum = 126ms, Average = 121ms
C:>ping gherogfhgnewlffefh.com
Pinging gherogfhgnewlffefh.com [218.83.175.154] with 32 bytes of data:
Reply from 218.83.175.154: bytes=32 time=674ms TTL=242
Reply from 218.83.175.154: bytes=32 time=1007ms TTL=242
Reply from 218.83.175.154: bytes=32 time=1002ms TTL=242
Reply from 218.83.175.154: bytes=32 time=812ms TTL=242
Ping statistics for 218.83.175.154:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 674ms, Maximum = 1007ms, Average = 873ms
我ping了3个根本不存在的域名,本应出现找不到域名错误(hostname not found),然而这显然不存在的3个域名竟然能得到解析结果,而无一例外的指向同一个IP----218.83.175.154。这个IP是什么我想大家应该也会非常有兴趣知道,点一下看看吧http://218.83.175.154 照样不能忘记把这个IP的whois信息拿出来作证据: http://www.dnsstuff.com/tools/whois.ch?ip=218.83.175.154 ,顺便贴出来:
WHOIS results for 218.83.175.154
Generated by www.DNSstuff.com
Location: China [City: Shanghai, Shandong]
ARIN says that this IP belongs to APNIC; I'm looking it up there.