RE: Two domains at one site..
- From: "adrian bolzan" <abolzan@xxxxxxxxxxxxxxxxxxxxxxxxx>
- To: "[ExchangeList]" <exchangelist@xxxxxxxxxxxxx>
- Date: Fri, 11 Feb 2005 12:54:48 +1100
Hi,
John's suggestion to have a deicated SMTP server forward mail to the
appropriate SBS server is a good one.
However if cost is an issue, instead of running up a Windows server for
IIS SMTP, why not use a linux server running postfix.
Postfix/Linux is ideal for this situation.
Cost would be that of a low end/used PC- say Celeron 500 with 128MB or
more RAM. I am assuming that the volume of email traffic will be
smallish.
Best regards,
Adrian
> -----Original Message-----
> From: Tim Jordan [mailto:tim@xxxxxxxxxxxxx]
> Sent: Friday, 11 February 2005 12:08 PM
> To: [ExchangeList]
> Subject: [exchangelist] RE: Two domains at one site..
>
> http://www.MSExchange.org/
>
> Okay, I'll fill in a few blanks.
>
> 1. This is a non-profit project..$
>
> 2. These domains are for a medical practices and the powers
> at be say keep the domains separated.
>
> 3. I actually have two sites and three domains:
> Site A - domain_A
>
> Site B - domain_B
> domain_C
>
> 4. Connectivity between the two sites is unreliable. They
> are in a remote area of Alaska and the ISP bandwidth is limited.
>
> Now with Site B I can't see why the SBS servers would
> complain if they are not on the same subnet:
>
> Domain_B--->nic1
> (192.168.1.1/24)--->switch--->workstations.domain_b.local
> Domain_B--->nic2 (192.168.2.2/24)--->firewall--->ISP
>
> Domain_C--->nic1
> (192.168.3.0/24)--->switch--->workstations.domain_c.local
> Domain_C--->nic2 (192.168.2.3/24)--->firewall--->ISP
>
> Nic2 on both SBS servers will be going into a Netscreen 5GT
> (firewall).
>
> In regards to the Exchange configuration. It looks like I
> need to look into smtp connector instead of relaying or do
> these components work together? I like John's idea about a
> dedicated SMTP server to relay/forward to the proper domain
> but that is just not an option right now so I'm curious if I
> can just configure one of the Exchange server
> (domain_b) to receive mail for it's domain and then
> relay/forward mail for domain_c.
>
> Thanks for the discussion!
> TJ
>
> -----Original Message-----
> From: John Tolmachoff (Lists) [mailto:johnlist@xxxxxxxxxxxxxxxxxxx]
> Sent: Thursday, February 10, 2005 3:25 PM
> To: [ExchangeList]
> Subject: [exchangelist] RE: Two domains at one site..
>
> http://www.MSExchange.org/
>
> Yes, you can have multiple SBS servers on the same physical
> network, especially if you use separate private IP networks,
> such as 10.10.10.1 and 192.168.10.1. As far as receiving
> e-mail from the Internet, that is something you have to
> configure properly on the Firewall if you only have one
> public IP. One way to do this is to forward all incoming SMTP
> to a 3rd server running IIS SMTP virtual server, and
> configure that to relay for the
> 2 domains, and on each one set to forward to the correct server.
>
> So yes, it can be done.
>
> However, there are a lot of why questions that come to mind.
>
> John Tolmachoff
> Engineer/Consultant/Owner
> eServices For You
>
>
> > -----Original Message-----
> > From: Tim Jordan [mailto:tim@xxxxxxxxxxxxx]
> > Sent: Thursday, February 10, 2005 1:56 PM
> > To: [ExchangeList]
> > Subject: [exchangelist] RE: Two domains at one site..
> >
> > http://www.MSExchange.org/
> >
> > Yes, I think I have accomplished segmenting the networks by
> using two
> > nics in each server.
> >
> > -----Original Message-----
> > From: Andrew English [mailto:andrew@xxxxxxxxxxxxxxxxxxxxxx]
> > Sent: Thursday, February 10, 2005 12:45 PM
> > To: [ExchangeList]
> > Subject: [exchangelist] RE: Two domains at one site..
> >
> > http://www.MSExchange.org/
> >
> > You are aware that you can not bind two SBS server together. If you
> > want to bind them together you will have start from scratch using
> > Windows
> > 2003 Server on both. SBS is for business with no more than 75 users
> > ideally and is its own machine.
> >
> > You can however put them both on a separate network, but honestly I
> > don't think you can put them both on the same network together.
> >
> > Maybe someone here can clarify this.
> > Andrew
> >
> >
> > -----Original Message-----
> > From: Tim Jordan [mailto:tim@xxxxxxxxxxxxx]
> > Sent: Thursday, February 10, 2005 4:27 PM
> > To: [ExchangeList]
> > Subject: [exchangelist] Two domains at one site..
> >
> > http://www.MSExchange.org/
> >
> > I have been asked to put two separate domains on the same physical
> > network. Both domains will be SBS 2003 and share one ISP
> connection
> > which is connected to a Netscreen firewall.
> >
> > To achieve this I'm going to put two nics in each server
> and bind nic1
>
> > to the private network and then route outgoing packets to
> nic2 which
> > will lead to the Internet. If I do this on each SBS server I'm
> > thinking I can keep the networks segmented but I'm not sure if name
> > resolution is going to work across the board....can anyone advise??
> >
> > For mail how should Exchange be configured to get mail between both
> > servers when I can port forward 25 to only one server? Is
> this just
> > an MX record and set up relaying?
> >
> > I guess the same question would go if I wanted to implement OWA on
> > both servers.
> >
> > Please feel free to ask questions if this is unclear.
> >
> > Thanks,
> > TJ
> >
> >
> >
> >
> >
> >
> >
> >
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