Right from the time Unix came up on the PDP-11 it was networked in the sense that it had dial-in and dial-out modems. Fairly early on, when Unixes appeared in other Bell Labs locations, Charlie Roberts provided a program for logging into another machine. It had an escape for file transfer, so it covered the basic functionality of rsh and ftp. It was not included in distributions, however, and its name escapes me. Maybe scj can add further details. Doug