Comcast DNS/POP performance question

Thomas Lopolito thomas at lopolito.com
Wed Jul 2 10:29:14 EDT 2003


I've called and asked for their Primary and Secondary DNS server IP
addresses as well as the gateway IP and they refused to give them to me.
They gave me Windows instructions but when I informed them I was using
linux, I was told I'm on my own. I tried to explain that was fine with
me; just tell me the addresses, but they couldn't get past the Windows
issue. I think the answer is that they really don't know and I'm not
sure how far up the food chain you have to go to get the info. I stopped
trying after the second supervisor.


On Wed, 2003-07-02 at 00:20, Robert La Ferla wrote:
> Resending because I used 'x' instead 'n' for the ips below and the 
> mailing list software thought it was obscene content!  ;-)
> 
> Since Comcast uses a single hostname for their POP server, are they 
> doing a DNS trick to route regional traffic to different IP addresses 
> for multiple POP servers?  e.g.  Boston's pop.comcast.net resolves to 
> nnn.nnn.nnn.1 and California's resolves to nnn.nnn.nnn.2, etc... Or are 
> they really using a simple powerful POP server to handle all the traffic 
> for comcast.net?  I ask this because if they are doing a DNS trick and 
> you don't use their DNS servers, performance can suffer.  Anyone know 
> the facts?
> 
> 
> 
> 
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