[LINK] Internet gambling ban announced
Wed, 28 Mar 2001 12:06:48 +1000 (AUS Eastern Standard Time)
On Wed, 28 Mar 2001, Kevin Littlejohn wrote:
> > So is there a generally accepted method of determining the country of
> > a net user, from the server's point of view? I would have thought
> > proxy servers and caches would preclude reliable answers.
> For the technically minded, you hook up something that keeps a database of AS
> number to organisation, and organisation to country, you fill another
> database _in real time, constantly_, with BGP information to track AS paths
> for IP's, and you work out in real time, as each request comes in,
> whether or not the IP number's announcement has a foreign AS number in it's
> advertisement path (or, in this case of tracking the originator, whether the
> originating AS in listed as an Australian company or not).
There is a open source tool SuperSparrow which is a global load balancing
solution that basically works this way. http://www.supersparrow.org/
(See where it directs you when you go to the above URL).
The blerb is "Super Sparrow enables users to load balance traffic between
geographically separated points of presence by finding the site
network-wise closest to clients. This is done by accessing BGP routing
information, the information that determines the path that traffic will
take on the internet."
I remember that it deals with quite a few of these issues.
There is a paper on the technology
http://www.au.supersparrow.org/ss_paper/ which was presented at the LCA
2001 in Sydney earlier this year.
It was developed by Simon Horman (horms) an Australian guy working at VA