Establish ftp connection mac3/22/2023 ![]() Again, opening/closing a separate data connection was suggested as an alternative (which would also allow selection of an appropriate byte-size). In the Data Transfer Protocol (equivalent to modern-day data connections in FTP), block mode was considered too costly just to provide control/data separation and EOF indication.Using separate connections was suggested to avoid that overhead. Ad-hoc protocols on top of TELNET where the receiving process had to inspect every byte were considered slow.The selection of byte-size could be important for some computers, e.g: the 36-bit PDP-10. The CPYNET protocol used on TENEX systems closed the control connection and opened a new one with possibly different byte-size.RFC310 "Another Look At Data And File Transfer Protocols" was published on April 3 to prepare for the workshop. The decision to have separate control and data connections in FTP was taken at the Data and File Transfer Workshop at MIT on April 14-15, 1972. ![]()
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