Path: utzoo!utgpu!water!watmath!uunet!portal!cup.portal.com!thad From: thad@cup.portal.com Newsgroups: unix-pc.general Subject: 3B1 vs. 7300, uucp/mail Fight, Round One Message-ID: <9377@cup.portal.com> Date: 23 Sep 88 11:29:23 GMT Organization: The Portal System (TM) Lines: 42 XPortal-User-Id: 1.1001.2826 Has anyone succeeded in connecting two UNIX-PCs via a single serial port on each system and having bi-directional uucp and mail function between them? I attempted this and, after using a DLM (data line monitor) on the serial port, discovered that each system's login herald would be interpreted as a login attempt by the other system with the result being each system would "fight" the other. Actually brought one system to its knees until I pulled the cable. The "fight" occurs when both systems have their (respective) serial port configured as "CALLER and HOST. When one system is configured as "CALLER" and the other as "HOST", there is no conflict, but mail and uucp traffic only flows from the CALLER to the HOST; uucp or mail on the HOST remains queued forever. I cannot afford the luxury of dedicating TWO serial ports on each system simply for uucp/mail between them (esp. since one system only has a single serial port). Both systems have 3.51 Foundation Set software. The null-modem cabling I'm using: System A, tty004 System B, tty000 (1)-----------------------(1) (2)-----------------------(3) (3)-----------------------(2) (4)-----------------------(5) (5)-----------------------(4) (7)-----------------------(7) (6)(8)-----------------------(20) (20)-----------------------(6)(8) The UNIX-PC docs "claim" that inter-system mail and uucp is trivial; does this imply that one must use StarLan (or something?) Thad Floryan [thad@cup.portal.com (OR) ...!sun!portal!cup.portal.com!thad]