解決......
nslookup
> server 140.112.254.4
Default Server: dns.ntu.edu.tw
Address: 140.112.254.4
> etrade.ycpf.com.tw
Server: dns.ntu.edu.tw
Address: 140.112.254.4
DNS request timed out.
timeout was 2 seconds.
DNS request timed out.
timeout was 2 seconds.
*** Request to dns.ntu.edu.tw timed-out
> server 140.112.2.2
Default Server: ntu3.ntu.edu.tw
Address: 140.112.2.2
> etrade.ycpf.com.tw
Server: ntu3.ntu.edu.tw
Address: 140.112.2.2
DNS request timed out.
timeout was 2 seconds.
DNS request timed out.
timeout was 2 seconds.
*** Request to ntu3.ntu.edu.tw timed-out
> server 168.95.1.1
Default Server: dns.hinet.net
Address: 168.95.1.1
> etrade.ycpf.com.tw
Server: dns.hinet.net
Address: 168.95.1.1
Non-authoritative answer:
Name: etrade.ycpf.com.tw
Address: 211.72.253.222
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 140.112.3.116