If you see result like:
pinging www.google.com [xxx.xxx.xxx.xxx.]
then DNS is working but not able to receive pings, then there is a network problem. You can then use tracert to see where the problem is in the route (probably can't do anything to fix this, only contact your ISP).
If you see result without IP, then your DNS server is down. You can either fix by adding more DNS servers like other people suggested or call and complain at your ISP. Adding DNS not from your own ISP is a good idea to serve as backup.作者: mayakeq 時間: 2006-11-1 14:33 標題: Re: 奇怪的網路狀況,能P2P卻不能出80port 除了168.95.1.1之外,也可以把168.95.192.1當作備用的dns
(也是中華電信的)作者: thomaschion094 時間: 2006-11-1 17:25 標題: Re: 奇怪的網路狀況,能P2P卻不能出80port 看來台固最聰明,第一個DNS指自己的,第二個指HiNet的.
不過,這樣做對嗎?作者: mayakeq 時間: 2006-11-1 18:54 標題: Re: 奇怪的網路狀況,能P2P卻不能出80port 這個...算是服務吧
台固也是要跟hinet簽線路的作者: 小螞蟻 時間: 2006-11-2 14:39 標題: Re: 奇怪的網路狀況,能P2P卻不能出80port 剛剛也遇到了,除了80PORT,其它FTP,TELNET,MSN,POP3都可以通.
改了DNS也無效,NSLOOKUP是正常的.
後來想到會不會和先前卡巴造成的TCP錯誤類似,拿了修正程式跑一下,重開,果然正常了~