[X4U] Re: Leopard Issues - Some Responses

[Robert Ameeti]

At 4:52 AM -0800, 12/5/07, Daly Jessup wrote:

>At 22 38  -0800 12/4/07, Robert Ameeti wrote:
>>At 12:26 AM -0500, 12/5/07, Jon wrote:
>>
>>>I respectfully request help, but - please - explain why 10.4 still 
>>>works and 10.5 hasn't from the first day I installed it. (And I'd 
>>>love to see a tech bulletin that could explain it further.)
>>
>>DNS works like this:
>
><snip the interesting description>
>
>>In this case, the Verizon DNS server has been configured to not 
>>accept any URL that does not have a top level domain as part of the 
>>URL and to send back their search page instead of an error. Because 
>>you one computer did not get the error result, it was not able to 
>>'guess' and resend the request with additional information.
>
>But then why might it work on his Tiger machine and not on his 
>Leopard machine. If Verizon were doing it, wouldn't they both fail?

Without being there, this could be explained in few ways.

I'm still waiting to see what the DNS servers are on each computer. 
We've not heard that yet. We've only heard what the DNS was on the 
router. The DNS on the computer would override the DNS on the router.

Secondly, there should always be at least 2 DNS servers listed in the 
DNS. The system is designed to randomly select from those DNS 
servers. Each DNS server can be configured differently.

As always, there are lots of variables to be examined. The bottom 
line though is that the return of Verizon's search page is just plain 
wrong. No DNS server should ever take upon itself the choice to 
return what it wants to return. That must always be the choice of the 
computer asking the question or else the system breaks down in many 
ways.
-- 

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Robert Ameeti

If it weren't for Philo T. Farnsworth, inventor of television, we'd still be eating frozen radio dinners.
-- Johnny Carson
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