[Pdns-users] PowerDNS vs UltraDNS??

[Andrew Mulholland]

On 14 Feb 2004, at 19:19, AJ McKee wrote:

>
>> There would be zero problems. Additionally, you have a number
>> of open source programmers around the world that can fix any
>> problems you encounter.
>
> The only thing there I see that may be interesting is this "Directional
> DNS" stuff they talk about. Now a quick google shows that this is their
> talk for some type of "use the nearest web server" result returned from
> DNS. Now obvisouly I am gonna have to go away and have a look into this
> as I have never heard of this being done using dns before. Does anyone
> know if it can be done and if so, can PDNS (That magical brilliant 
> piece
> of art) do the same thing?


it theoretically should be possible, if you write your own backend to 
handle such stuff..

To do it properly, would mean giving the DNS servers a BGP feed, and 
writing some kind of algorithm to return result based on the lowest 
cost path.
This is how I believe the akadns.net stuff works, and also what BBC are 
doing with news.bbc.co.uk.

what might be easier, is doing it using one of the geoip type 
things...(http://www.maxmind.com/) but might not always return people 
to the closest mirror etc.


thanks

andy

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