Date: Thu, 14 Feb 2002 15:43:50 +0300 From: Alexandr Alov <amil198@eltex.ru> To: Peter Pentchev <roam@ringlet.net> Cc: freebsd-security@FreeBSD.ORG Subject: Re: about 113 port Message-ID: <200202141243.PAA05312@incredible.hq.eltex.ru> In-Reply-To: <20020214143702.A935@straylight.oblivion.bg> References: <200202141018.NAA05098@incredible.hq.eltex.ru> <20020214135052.A339@straylight.oblivion.bg> <200202141216.PAA05281@incredible.hq.eltex.ru> <20020214143702.A935@straylight.oblivion.bg>
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Hello ! Thank you. PPAA> This is a connection *attempt*, not an actual connection. PPAA> It is only an attempt, because there is nothing that listens PPAA> on port 113 on 10.0.0.2; therefore, the OS returns a TCP RST (reset) PPAA> packet, and a TCP client on 10.0.0.1 would get a 'connection PPAA> refused' error. PPAA> Many programs attempt connections to port 113 - mail servers, PPAA> IRC servers, some FTP servers.. If there is nothing that answers PPAA> such connection requests, the programs just go on, having received PPAA> no data. This is the way it should generally be :) (unless you happen PPAA> to use one of those picky-picky IRC servers that require an auth response; PPAA> but that's another topic for another day) In general, you should leave PPAA> things configured exactly the way they are now - nothing listening PPAA> on port 113. The network traffic that you are seeing is just somebody PPAA> *trying* to connect and failing - it is completely normal. PPAA> G'luck, PPAA> Peter -- Alexandr Alov System Engineer, Eltex TC Co. Saint-Petersburg, Russia. e-mail: amil198@eltex.ru www: www.eltex.net To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message
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