SUMMARY: not dropping line on sbus serial/parallel controller

From: Tommy Reingold (tommy@boole.att.com)
Date: Sun Jun 27 1993 - 10:51:22 CDT

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I wrote:

$ I put an sbus-based serial/parallel controller on a sparc10. It has a
$ cable that goes to a rectangular pancake that has eight serial ports
$ and a paralell port. I'm running gettys on five of the serial ports.
$ People log in and get other people's shell sessions. This is a serious
$ problem as you can imagine. How can I correct this?

$ I'm running SunOS 4.1.3.

$ ttyi00 "/usr/etc/getty t9600" network on
$ ttyi01 "/usr/etc/getty t9600" network on
$ ttyi02 "/usr/etc/getty t9600" network on
$ ttyi03 "/usr/etc/getty t9600" network on
$ ttyi04 "/usr/etc/getty t9600" network on
$ ttyi05 "/usr/etc/getty t9600" unknown off
$ ttyi06 "/usr/etc/getty t9600" unknown off
$ ttyi07 "/usr/etc/getty t9600" unknown off
$ --
$ Tommy Reingold
$ AT&T Bell Labs, Holmdel, NJ
$ tommy@boole.att.com or att!boole!tommy

There's a file called /usr/etc/stc/stc_defaults.

This is how it looks now. I had to take soft_carrier out on the
entries for my inbound lines (0 through 4). That field made the lines
ignore changing states on the carrier detect (CD) signal.

ttyz00:dtr_assert:
ttyz01:dtr_assert:
ttyz02:dtr_assert:
ttyz03:dtr_assert:
ttyz04:dtr_assert:
ttyz05:dtr_assert:soft_carrier:
ttyz06:dtr_assert:soft_carrier:
ttyz07:dtr_assert:soft_carrier:

-- 
Tommy Reingold
AT&T Bell Labs, Holmdel, NJ
tommy@boole.att.com or att!boole!tommy

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