RFC 818 November 1982 Remote User Telnet Service providing a network virtual terminal. A server Telnet also exists on the TC68K to serve as a front end for devices that have no awareness of the net. This is used for remote printer/plotters and computers with no network software. The TC68Ks at BBN are distributed about several buildings. To provide an operational tool to test remote TC68Ks, the TC68K software was configured to put a user Telnet back to back with a server Telnet. An operator can open a connection to a remote TC68K and appear to be a terminal local to that unit. This verifies that the network path between the two units is operational and provides the operator with access to statistics that are kept as part of the standard user TC-Telnet application. Operator's Local Remote Remote Terminal user server user TC-Telnet Telnet TC-Telnet This solution was attractive as the only extra piece of software necessary for this was the "Pseudo Teletype" (PTY) device driver for MOS. This "device" appears as a terminal to its application, but what it is really doing is providing a character stream between two processes. Postel