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Old 11-06-2006, 14:26   #7
codebreaker
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Join Date: Jun 2006
Location: india
Posts: 12
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Re: Transparent Proxiy Cache And Ntl

I am back ... with some knowledge in my belly ...[ lol ]. Whenever an NTL customer tries to run an nslookup command from the DOS shell the following happens :
nslookup bbc.com
[the NTL dns first tries to resolve the address and pulls up the IP address associated with the specified web URL , if it fails to do so then it queries an external DNS server in an effort to resolve the IP address and the customer gets a message "non-authoritative answer" folloed by the web URL and it's corresponding ip address ]

Now the biggest question i have is , if NTL DNS servers [both primary and the secondary ] stops working ( u can recall the recent DNS outage ) will it be able to query an external DNS , is yes then how , if no then is it possible for the customer to specify an external DNS on his lan configuration . Will he be able to get access to the DNS server of bt or freeserve ?.....

cheers,
codebreaker
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