Re: Your god is fake (conversation of energy)
- From: Sam Wormley <swormley1@xxxxxxxxx>
- Date: Thu, 15 Feb 2007 03:23:12 GMT
gdewilde@xxxxxxxxx wrote:
The Google Purchase of the 1995-2001 Usenet Archive And the Online
Community
http://www.heise.de/tp/r4/artikel/7/7013/1.html
hehehe
Technical details
http://en.wikipedia.org/wiki/Usenet#Technical_details
Usenet is a set of protocols for generating, storing and retrieving
news "articles" (which resemble Internet mail messages) and for
exchanging them among a readership which is potentially widely
distributed. These protocols most commonly use a flooding algorithm
which propagates copies throughout a network of participating servers.
Whenever a message reaches a server, that server forwards the message
to all its network neighbors that haven't yet seen the article. Only
one copy of a message is stored per server, and each server makes it
available on demand to the (typically local) readers able to access
that server. Usenet was thus one of the first peer-to-peer
applications, although in this case the "peers" are themselves servers
that the users then access, rather than the users themselves being
peers on the network.
RFC 850 was the first formal specification of the messages exchanged by
Usenet servers. It was superseded by RFC 1036.
One difference between Usenet and newer peer-to-peer applications is
that one can request the automated removal of a posting from the whole
network by creating a cancel message, although due to a lack of
authentication and resultant abuse, this capability is frequently
disabled. Copyright holders may still request the manual deletion of
infringing material using the provisions of World Intellectual Property
Organization treaty implementations, such as the U.S. Online Copyright
Infringement Liability Limitation Act.
On the Internet, Usenet is typically on TCP Port 119.
.
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