Wouldn't it be simpler (and more secure) to put IPSec in place? Far
fewer holes to poke in the firewall, for a start.

I'm ignoring for a moment that it's sinful to have a machine in the
DMZ auth (or start *any* conversation beyond perhaps DNS or SMTP) with
a machine in the production network.

Kurt


On Mon, Nov 29, 2010 at 10:08, David Lum <david....@nwea.org> wrote:
> I have a 2008 R2 server in a DMZ and I need it to authenticate it with our
> AD but it tells me “domain is not available.
>
>
>
> Per this article:
>
> http://blogs.msdn.com/b/rds/archive/2009/07/31/rd-gateway-deployment-in-a-perimeter-network-firewall-rules.aspx
>
>
>
> I have the following firewall ruled from the DMZ server --> inbound. RADIUS
> is not used.
>
>
>
> TCP/UDP 53 (DNS) --> DC’s
>
> TCP 88 (Kerberos) --> DC’s
> TCP 135 (RPC) --> DC’s
>
> TCP/UDP 389 (LDAP) -- > DC’s, RDS servers
> TCP/UDP 443 (SSL) -->  DC’s, RDS servers
>
> TCP/UDP 24158 (WMI) --> RDS servers * (I set this port to be fixed on the
> RDS servers)
>
> TCP 3389 (RDP) --> LAN
>
> TCP 5504 -->  RDS Broker
>
>
>
> Do I also need to have TCP > 1024 opened up? I can’t log into this system
> via a domain account.
>
> David Lum // SYSTEMS ENGINEER
> NORTHWEST EVALUATION ASSOCIATION
> (Desk) 971.222.1025 // (Cell) 503.267.9764
>
>
>
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