Re: [nznog] TelstraVodaHug core lag

On 18/09/2013 7:47 p.m., Nathan Ward wrote:

On 18/09/2013, at 7:38 PM, Don Stokes wrote:

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On 18/09/13 18:58, Nathan Ward wrote:

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As has been mentioned by others, don't use 8.8.8.8 for DNS if you're in NZ because Akamai will make your life hard. Random thought ... how bad would it be for a service provider to locally redirect 8.8.8.8/32 into their own DNS forwarders?

I mean it would probably violate the Principle of Least Astonishment, at least for folk who are paying attention, but random users who have been told that "it's better to use 8.8.8.8" without fully understanding the implications might get better performance…

This is why we can't have nice things.

Incidentally, on some networks, for HTTP it doesn't change too much, because their proxy servers do DNS lookups based on whatever you put in your requests' Host header, instead of whatever is the original destination IP address.

Here's an example of this sort of thing in the past: http://list.waikato.ac.nz/pipermail/nznog/2009-August/015712.html

Anything in the Host header is a bit of an overstatement for the current generation of HTTP proxies. Since 2009 there has been significant cross-vendor effort to eradicate that ability and validate the Host header against destination IP before using either one. AYJ -- "That Squid Guy"