[mod.protocols.tcp-ip] 4.3bsd/telnet break

stanonik@NPRDC.ARPA.UUCP (12/12/86)

We've had some users, who connect to us via tacs,
complain that programs now mysteriously crash.  One hunch
is that we're receiving telnet breaks (iac brk), which the
4.3bsd telnet server turns into the dump core signal (SIGQUIT).
So, the question is, "Can a telnet break be sent from a tac
and, if so, how?".  I haven't found much information on tacs
(any suggestions, I've tried rfcs and nic tacnews), but tacs
do use "@" as an escape character (which has caused grief
when users try to send mail to say, user@colorado.edu).  Is
there a tac escape sequence for sending the telnet break;
eg, @b?

Thanks,

Ron Stanonik
stanonik@nprdc.arpa

ahill@CC7.BBN.COM.UUCP (12/12/86)

Ron,
	Yes.  There is a TAC escape sequence that will cause 
breaks to be transmitted to a host.  The sequence is @s b.  There
are probably others but that one works.  The default command intercept
is @ and it can be transmitted through the TAC by doubling the character,
ie, two @'s.  If there is need, you can change the intercept.

Alan