Date: Thu, 22 Oct 1998 16:05:45 -0400 (EDT) From: Jim Flowers <jflowers@ezo.net> To: Juergen Nickelsen <ni@tellique.de> Cc: Chad Thunberg <chadth@atvideo.com>, freebsd-security@FreeBSD.ORG, freebsd-questions@FreeBSD.ORG Subject: Re: firewall + internal mail server Message-ID: <Pine.BSI.3.91.981022155534.5748C-100000@lily.ezo.net> In-Reply-To: <362F773A.AB9F196B@tellique.de>
next in thread | previous in thread | raw e-mail | index | archive | help
A fairly simple way would be to use a hidden dns. Run sendmail normally on your fbsd machine with resolv.conf entry pointed to internal (hidden) dns server hosting MX resource record pointing to internal mail-hub host running smtp. MX records on external server (at ISP for example) point to your fbsd machine. That way the only external dns record necessary is your mail-relay so all the good stuff is hidden from the rest of the world. Mail is sent to your mail-relay and then relayed on to your internal mail-hub and you don't have to modify your sendmail setup at all. Even better if you use a wrapper like smap. Jim Flowers <jflowers@ezo.net> #4 ISP on C|NET, #1 in Ohio Juergen wrote:------------------ > > As we are just a few people here yet, this is bearable, but for a > long-term solution I'll have to work out a sendmail configuration > where the mail exchanger for the domain delivers the mail to a > non-MX. I am sure there is a simple way, but I don't know it yet. > > Greetings, Juergen. > > -- > Juergen Nickelsen <ni@tellique.de> To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?Pine.BSI.3.91.981022155534.5748C-100000>