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Line 2: [[File:SDF Heart.jpg\|thumb\|The heart of SDF with a few spares. This also includes the diaspora pod, the Plan9 cluster and the bifrost cluster. (tour 2012)]] '''Super Dimension Fortress''' (abbreviated as ''SDF'', also known as freeshell.org) is a [[non-profit]] public access [[UNIX]] [[shell provider]] on the [[Internet]]. It has been in continual operation since 1987 as a non-profit [[social club]]. The name is derived from the Japanese [[anime]] series ''[[Super Dimension Fortress Macross]]''; the original SDF server was a [[Bulletin board system]] created by Ted Uhlemann for fellow Japanese anime fans.<ref>{{cite web\|url=http://www.heise.de/netze/meldung/PUBNIX-System-SDF-1-feiert-20-jaehriges-Jubilaeum-140770.html \|title=PUBNIX-System SDF-1 feiert 20-jähriges Jubiläum \| heise Netze \|date=18 June 2007 \|publisher=Heise.de \|access-date=2014-05-09}}</ref> From its BBS roots, which have been well documented as part of the ''[[BBS: The Documentary]]'' project, SDF has grown into a [[Software feature#Feature-rich software and feature creep\|feature-rich]] provider serving members around the world. ==Services==

SDF Public Access Unix System: Difference between revisions