From owner-freebsd-questions Wed Jun 23 11:28:46 1999 Delivered-To: freebsd-questions@freebsd.org Received: from megamail.megared.net.mx (megamail.megared.com.mx [207.249.162.252]) by hub.freebsd.org (Postfix) with SMTP id 0CB1E153A7 for ; Wed, 23 Jun 1999 11:28:35 -0700 (PDT) (envelope-from ales@megared.net.mx) Received: from [207.249.163.251] by megamail.megared.net.mx (NTMail 3.03.0017/4c.ab3r) with ESMTP id fa327085 for ; Wed, 23 Jun 1999 13:25:12 -0500 Message-ID: <004101bebda5$d8eb37e0$fba3f9cf@megared.net.mx> From: "Alejandro Ramírez" To: "Doug White" Cc: References: <003001bebcf7$a514cb60$fba3f9cf@megared.net.mx> Subject: RE: Problem with NAT!!! Date: Wed, 23 Jun 1999 13:26:01 -0500 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2014.211 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2014.211 Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Hi Doug, This is the output that I get when I make the .cf file with the FEATURE(nodns) enabled, here it says that this option it´s no longer available, that I should use the /etc/service.switch file, but I dont have this file, and the only file I have is the /etc/services file, the faq in sendmail.org site also said that i have to disable the dns lookups in this file, but Im a little confused here, How do I do it??? , and another question, disabling dns lookups in the server, will this going to be a security hole in my server???, and this server its still going to be an "internet mail server"??? Output from: #make generic-bsd4.4.cf FEATURE(nodns) is no-op. Use ServiceSwitchFile (/etc/service.switch) if your OS does not provide its own instead. Thanks in Advance!!! Ales ----- Original Message ----- To: Doug White Sent: Tuesday, June 22, 1999 4:39 PM > Hi Doug, > > Hi again, the solution of using an Internal DNS, its very dificult for > me, I have about 10,000 customers behind the NAT at my routers, so I will > have to disable DNS Lookups in Sendmail, but I cant find how to do it, the > only thing I found its this : FEATURE(nodns), in the .mc file, but this > didnt worked, I still having the same problem, is this the right feature, or > its something I have missed in the sendmail.org Site. > > Ales > > ----- Original Message ----- > From: Doug White > Sent: Tuesday, June 22, 1999 2:40 PM > > On Tue, 22 Jun 1999, Alejandro Ramírez wrote: > > > > > I have set up forward and reverse mapping to the outside ip address > of > > > the NAT (the public IP Address), and I also set up an MX record to the > same > > > address ( I read it in a firewall list ), I have checked this > configurations > > > with the nslookup command, and also with this page > > > http://www.wiskit.com/cgi-bin/tracecon , and everything seems to be > > > configured correctly, but I still have to wait like 25-30 seconds to get > an > > > answer from sendmail, I dont know what else I have to do to make this > work > > > with DNS records and computers behind the NAT. > > > > Yes, but you must set up an *INTERNAL* DNS with INTERNAL addresses. > > > > > BTW How do I turn off DNS lookups in sendmail, I want this to be my last > > > option. > > > > Check www.sendmail.org. > > > > > > > After 25 seconds it returns this... > > > > > > > > > > 220-mail.megared.net.mx ESMTP Mail Server. > > > > > 220-Ready on Fri, 18 Jun 1999 16:13:16 -0500 (CDT). > > > > > 220 !!!Do Not Spam this Site or use it as a Relay Without Explicit > > > > > Permission!! > > > > Doug White > > Internet: dwhite@resnet.uoregon.edu | FreeBSD: The Power to Serve > > http://gladstone.uoregon.edu/~dwhite | www.freebsd.org > > > > > 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