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000349_news@columbia.edu _Mon Jun 5 10:08:47 2000.msg
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From: fdc@columbia.edu (Frank da Cruz)
Subject: Re: Login garbage
Date: 5 Jun 2000 14:06:51 GMT
Organization: Columbia University
Message-ID: <8hgc5r$7qb$1@newsmaster.cc.columbia.edu>
To: kermit.misc@columbia.edu
In article <8heop1$djs$1@samba.rahul.net>,
Clarence Dold <dold@rahul.net> wrote:
: Frank da Cruz <fdc@watsun.cc.columbia.edu> wrote:
:
: : To avoid getty babble, the answering modem must be configured as follows
: : (the commands shown are for USR modems but should be fairly portable):
:
: That shouldn't be necessary on any modern Unix.
:
Yet the report suggests that some form of getty babble is happening anyway.
: The Unix getty, starting
: with early SVR3, should ignore any incoming characters if CD is not high,
: masking this very problem. Prior to the change, made specifically for
: "chatty" modems, the getty was blocked from opening, waiting for CD, but as
: soon as it did open, the previously buffered "RING" would be delivered to
: the getty.
:
The report didn't indicate whether this was a modern Unix (but now we know
it's AIX 4.2). Anyway, experience tells us that sweeping statements applying
to multiple Unix varieties, or even multiple releases of the same Unix
product, can rarely be made with any confidence.
The bottom line is that if a modem is to be used for dialing in to Unix,
it can't hurt to set it up appropriately, and it probably will help.
- Frank