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In page Samba (software):

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Andrew Tridgell developed the first version of Samba Unix in December 1991 and January 1992, as a PhD student at the Australian National University, using a packet sniffer to do network analysis of the protocol used by DEC Pathworks server software. It did not have a formal name at the time of the first releases, versions 0.1, 0.5, and 1.0, all from the first half of January 1992; Tridgell simply referred to it as "a Unix file server for Dos Pathworks." He understood that he had "in fact implemented the netbios protocol" at the time of version 1.0 and that "this software could be used with other PC clients."[citation needed]