From owner-freebsd-questions Tue Jun 19 10: 4:42 2001 Delivered-To: freebsd-questions@freebsd.org Received: from evilfry.dyndns.org (dyn15ppp9.qala.com.sg [210.193.15.9]) by hub.freebsd.org (Postfix) with ESMTP id 72EAD37B401 for ; Tue, 19 Jun 2001 10:04:38 -0700 (PDT) (envelope-from root@evilfry.dyndns.org) Received: by evilfry.dyndns.org (Postfix, from userid 0) id 66C9718381D; Wed, 20 Jun 2001 01:04:50 +0800 (SGT) Content-Type: text/plain; charset="iso-8859-1" From: James Lim Reply-To: evilfry@sg.freebsd.org To: Dan Armstrong , Tony Wells Subject: Re: Urgent help with Reverse Lookups and FTPD Date: Wed, 20 Jun 2001 01:04:46 +0800 X-Mailer: KMail [version 1.2] Cc: freebsd-questions@freebsd.org References: <3B2F74D7.C057B32F@beanfield.com> <3B2F820B.4147E4E8@camel.kdsi.net> <3B2F84CE.608E7F75@beanfield.com> In-Reply-To: <3B2F84CE.608E7F75@beanfield.com> MIME-Version: 1.0 Message-Id: <01062001044603.44515@evilfry.dyndns.org> Content-Transfer-Encoding: quoted-printable Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi =09Are you using the normal ftpd? Does commenting out the following in=20 your /etc/host.allow works? # Prevent those with no reverse DNS from connecting. #ALL : PARANOID : RFC931 20 : deny Hope this helps. On the last episode Wednesday 20 June 2001 00:58, Dan Armstrong wrote: > Well, we have almost 1000 stub-bridged Ethernet LANs each on it's > own private subnet tunneled over an ATM network back to a router.=20 > The long and the short of it is that we just cannot possibly manage > reverse info for the entire network. > > Dan. > > Tony Wells wrote: > > Do you really need thousands of addresses for your customers?=20 > > I'm making an assumption , but if you're assigning addresses > > using DHCP, can you limit the range of addresses assigned to a > > reasonable amount? If you only have say, 100 modems/xdsl/isdn or > > whatever connections, you don't need ~64,000 IP's available. > > > > I would try looking into limiting the addresses assigned, and > > then using /etc/hosts or reverse dns to resolve the IP's.=20 > > (Unless of course, you really need all those IP's.) > > > > Dan Armstrong wrote: > > > We are a small ISP, and just turned up a new webserver running > > > Free4.3 > > > > > > Most of our customers live on private (192.168) addresses and I > > > am getting slaughtered with phone calls that they cannot ftp > > > into their sites, and it is because their ftp programs don't > > > necessarily wait for Free's ftpd to timeout doing the reverse > > > lookup, for an address that of course does not have any reverse > > > information for it. If I add their IP to the /etc/hosts BOOM > > > they get in instantly. These thousands of addresses are all > > > dynamically assigned, so the hosts file fix is not possible on > > > this scale. Is there a way I can get it to stop? HELP! > > > > > > Dan. > > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > > > with "unsubscribe freebsd-questions" in the body of the message > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-questions" in the body of the message - --=20 Regards, James Lim http://sg.freebsd.org | http://www.bsd-geeks.org -----BEGIN PGP SIGNATURE----- Version: PGP 6.5.8 iQA/AwUBOy+GLppTakonTMbIEQLRawCghDlBMaOCON42Ph+eDyw603V9xJwAoPOa Zk8EEVolF8KC84QoLxU44Cw8 =3D2/HN -----END PGP SIGNATURE----- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message