TCP/IP

Microsoft limits P2P connects in XP/Vista, eyes ‘greener’ P2P for Windows 7

Windows flagIn the current P2P world, torrenters and the like are discovering that a recent Windows-update – included in XP service pack 3, and Vista – alters the tcpip.sys file that governs Windows tcp behavior to limit users to just 10 ‘half open‘ connections at any one time. This could be a response to the concerns raised by cable ISP’s like Comcast that’s DOCSIS-based networks break down when clients use over-multitudinous connections. Needless to say, as the word spreads, workarounds to undo MS’s changes are proliferating.

A Mar 17 article in BetaNews notes the aptly-timed announcement that, for the forthcoming Windows 7, Microsoft is contemplating adding such features as metered connections, distributed hash tables, and something called ‘green P2P’. The article notes that Windows Vista already includes an IPv6-based P2P-enabling technology known as Teredo. Continue reading

Computer History Museum now on YouTube

Computer History Museum” The Computer History Museum has inaugurated a channel on YouTube featuring full length versions of their lectures and documentary programs. Of particular interest is ‘Internet Milestone – 30th Anniversary 3-Network Transmission ‘ which celebrates Kahn & Cerf’s first successful internetworking test.

NY Times notes 20th Anniversary of NSFnet

An article –The Team That Put the Net in Orbit – in today’s NY Times notes the recent 20th anniversary of the launch of NSFnet, a precursor to the Internet. Originally constructed to tie together the nation’s five supercomputer centers, by the time the academic network was shut down in 1996, it connected 6.6 million host computers and extended to 93 countries.

A critical decision was to adopt the then as unproven TCP/IP protocol. TCP/IP served as a vital lingua franca between previously incompatible computer networks.
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