NOTAIL.MAC Version 8A Abstract for DECUS 9-Sep-91 Tailgating is the name commonly given to what happens when a modem data path is broken before the job using it has logged off, and the next call is connected to that still active session of the prior user. TSX-Plus was given improved modem control in V6.40, with which tailgating incidents are easily prevented. If you are using this or a later release then this program is not necessary, although the info concerning use of a logoff command file applies in either case. If you're using TSX-Plus V6.31 or below, the TIMOUT value which governs how long a job will be held active after the data carrier has been lost also determines the time allowed for a caller to first connect, type two returns and initialize the line. Thus, setting TIMOUT small enough to prevent tailgating means it's not likely anyone will be able to log on a phone line either. This little program, running as a detached job, checks desginated lines every 0.5 second and kills any that may still be logged on without DCD held true. Revised 25-Aug-91 to work with pre-V6.3 releases of TSX-Plus, at least thru V6.0, and may run on some of the later V5.x releases too.