From owner-freebsd-net Tue Jul 25 22:31:37 2000 Delivered-To: freebsd-net@freebsd.org Received: from obie.softweyr.com (obie.softweyr.com [204.68.178.33]) by hub.freebsd.org (Postfix) with ESMTP id B324137BE4A; Tue, 25 Jul 2000 22:31:29 -0700 (PDT) (envelope-from wes@softweyr.com) Received: from softweyr.com (Foolstrustident!@homer.softweyr.com [204.68.178.39]) by obie.softweyr.com (8.8.8/8.8.8) with ESMTP id XAA04440; Tue, 25 Jul 2000 23:31:27 -0600 (MDT) (envelope-from wes@softweyr.com) Message-ID: <397E78B1.BDE3A622@softweyr.com> Date: Tue, 25 Jul 2000 23:35:45 -0600 From: Wes Peters <wes@softweyr.com> Organization: Softweyr LLC X-Mailer: Mozilla 4.7 [en] (X11; U; FreeBSD 4.1-RC i386) X-Accept-Language: en MIME-Version: 1.0 To: Robert Watson <rwatson@FreeBSD.ORG> Cc: "Roberto Nunnari, AGIE" <roberto.Nunnari@agie.ch>, Nick Rogness <nick@rapidnet.com>, net@FreeBSD.ORG Subject: Re: gateway strange behaviour for telnet and ftp References: <Pine.NEB.3.96L.1000724125838.41604H-100000@fledge.watson.org> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-net@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org Robert Watson wrote: > > On Mon, 24 Jul 2000, Wes Peters wrote: > > > Because the server daemones for each of those do the reverse lookup, for > > logging and/or authentication purposes. Ping never gets out of the IP > > stack; one of the reasons it is preferred for testing connectivity is the > > minimal load it imposes on the target being pinged. > > This has gotten worse recently (well, relatively recently) with inclusion > of TCP wrappers in standard binaries, including inetd, et al. Introducing > DNS lookups is actually fairly irritating, especially given that most of > the checks there are somewhat bogus, as easily spoofed :-). I don't > believe our default wrapper rules should require DNS lookups; it would be > nice if they didn't do them. > > Would also be nice if we logged IPs as well as hostnames in wtmp all of > the time. It would be better to just log the IP address and make who et al smart enough to do the reverse lookup at display time. -- "Where am I, and what am I doing in this handbasket?" Wes Peters Softweyr LLC wes@softweyr.com http://softweyr.com/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message