Date: Tue, 22 Jun 1999 13:19:02 -0500 From: "Alejandro Ramírez" <ales@megared.net.mx> To: "Doug White" <dwhite@resnet.uoregon.edu> Cc: <freebsd-questions@FreeBSD.ORG> Subject: RE: Problem with NAT!!! Message-ID: <001b01bebcdb$b5127ce0$fba3f9cf@megared.net.mx> References: <Pine.BSF.4.10.9906211032340.36767-100000@resnet.uoregon.edu>
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Hi, Doug
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.
BTW How do I turn off DNS lookups in sendmail, I want this to be my last
option.
Ales
----- Original Message -----
From: Doug White <dwhite@resnet.uoregon.edu>
Sent: Monday, June 21, 1999 12:34 PM
> s/,/./g
>
> On Fri, 18 Jun 1999, Alejandro Ramírez wrote:
>
> > FreeBSD% telnet 207.249.163.249 25
> > Trying 207.249.163.249...
> > Connected to mail.megared.net.mx.
> > Escape character is '^]'.
> >
> > 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!!
>
> Sendmail is waiting for the DNS reverse lookup to timeout. Set up DNS for
> your internal network with forward and reverse mappings.
>
> Or turn off DNS lookups in sendmail.
>
> Doug White
> Internet: dwhite@resnet.uoregon.edu | FreeBSD: The Power to Serve
> http://gladstone.uoregon.edu/~dwhite | www.freebsd.org
>
>
>
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