Subject: Re: sendmail (crackish?) error message question...
To: Tim Rightnour <root@garbled.futureone.com>
From: Andrew Brown <codewarrior@daemon.org>
List: netbsd-help
Date: 12/16/1997 12:47:53
>>Dec 14 22:43:28 acheron sendmail[1464]: NOQUEUE: Null connection from
>>root@localhost
>
>Could a sendmail of some sort simply be starting a connection, and breaking it
>off before it gets fully connected? IE in one of the ACK_WAIT states?
nope.
* if it was trying to connect out somewhere and failed, it would
simply leave the associated message in the local queue and try
again later.
* if something was trying to connect to it and dropped, you see a line
like this:
Dec 16 12:39:56 noc sendmail[22280]: NOQUEUE: Null connection from noc.untraceable.net [198.67.15.13]
* if something was trying to connect in and never completed the
three-way-handshake, sendmail would never see it.
* if someone other than root ran it from the command line with -bs,
you see their name instead of root.
--
|-----< "CODE WARRIOR" >-----|
andrew@echonyc.com (TheMan) * "ah! i see you have the internet
codewarrior@daemon.org that goes *ping*!"
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