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From: Don Lewis <Don.Lewis@tsc.tdk.com>
Message-Id: <199811050559.VAA12623@salsa.gv.tsc.tdk.com>
Date: Wed, 4 Nov 1998 21:59:24 -0800
In-Reply-To: Poul-Henning Kamp <phk@critter.freebsd.dk>
       "Re: cvs commit: src/usr.sbin/inetd inetd.c" (Nov  4,  8:58pm)
X-Mailer: Mail User's Shell (7.2.6 alpha(3) 7/19/95)
To: Poul-Henning Kamp <phk@critter.freebsd.dk>,
        "Andrey A. Chernov" <ache@nagual.pp.ru>
Subject: Re: cvs commit: src/usr.sbin/inetd inetd.c
Cc: cvs-committers@FreeBSD.ORG, cvs-all@FreeBSD.ORG
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On Nov 4,  8:58pm, Poul-Henning Kamp wrote:
} Subject: Re: cvs commit: src/usr.sbin/inetd inetd.c
} In message <19981104225055.A17178@nagual.pp.ru>, "Andrey A. Chernov" writes:
} >On Wed, Nov 04, 1998 at 11:39:47AM -0800, Poul-Henning Kamp wrote:
} >> phk         1998/11/04 11:39:47 PST
} >
} >>   It will return "ERROR:HIDDEN-USER" for all requests.
} >
} >Just wonder, why?
} 
} Makes sendmail connect a bit faster...

It shouldn't.  If nothing is listening on this port, the initial SYN packet
should get a TCP RST as a response, and the client's connect() call should
then return ECONNREFUSED.  If inetd is listening, then the client will have
to wait for the initial three-way handshake, the data to be transferred, and
part of the connection teardown.

The only time things should be slow is if you block access to this port so
that there is no response to the client's SYN, so that the client retries
a few times and finally has to time out.

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