Date: Thu, 5 Nov 1998 00:56:10 -0700 From: Nate Williams <nate@mt.sri.com> To: Poul-Henning Kamp <phk@critter.freebsd.dk> Cc: Don Lewis <Don.Lewis@tsc.tdk.com>, cvs-committers@FreeBSD.ORG Subject: Re: cvs commit: src/usr.sbin/inetd inetd.c Message-ID: <199811050756.AAA17272@mt.sri.com> In-Reply-To: <10913.910249569@critter.freebsd.dk> References: <199811050559.VAA12623@salsa.gv.tsc.tdk.com> <10913.910249569@critter.freebsd.dk>
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Poul-Henning Kamp writes: > >} 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. > > Well, it is (barely) measurably faster on the two busy mailservers I run. That makes no sense given Don't analysis. Getting a reset is *MUCH* faster than making a full-fledged TCP connection, sending and receiving (bogus) data, and then shutting down the connection. Are you sure it's not your firewall setup that's causing it? (I ask since I got my original firewall stuff from you, and most of the rules you had were 'deny' instead of 'reject' type rules. > The other advantage is that it makes: > sysctl -w net.inet.tcp.log_in_vain=1 > less noisy on same machines. ???? Nate To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message
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