Communication between local and remote systems

In order to communicate between a remote system and a local system, the remote system must have a hardwire or modem link to the local system, a UNIX-based operating system installed, and either BNU or another version of UNIX-to-UNIX Copy Program (UUCP) running.

Note: You can use BNU to communicate to a non-UNIX system, but such connections might require additional hardware or software.

BNU has two commands that enable you to communicate with remote systems. The cu command connects systems over either hardwire or telephone lines. The ct command connects systems over telephone lines only, using a modem.

Use the cu command to establish communication between networks when you know either the phone number or the name of the target system. To use the ct command, you must have the phone number of the target system.

Note: A third command, tip, functions very much like the cu command. However, the tip command is a component of the Berkeley Software Distribution (BSD) version of the UUCP program. Its installation with BNU requires special configuration.