Tim Jackson knows his stuff with servers...
> NOT a DNS server which contains a list of all URLs. There are many
> hundreds of thousands of DNS servers scattered around the world, each one
> often only holding information for one or two domains
> use one or two name servers given to you by your ISP. These are forwarding
> nameservers and will answer queries for ANY domain but not because they
> have all the information in the world!
> What you need is a search engine :) I'm not sure if you can enter wildcards
I realise the question I'm about to ask is not directly related to the
topic, but you have piqued my curiosity:
How does a search engine work then? It holds (allegedly) millions of
page references, usually at least a 256-character keyword string for
each, often a more descriptive text. The storage space alone must be
phenomenal, and even with advanced hash-tables and whatever it seems
weird that it can search it all and create the answers within a few
seconds - and do it for thousands of requests repeatedly. Do they use
some other scheme, or is it really as brute-force as it sounds?
Cheers,
Ian
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