[THIN] Re: OT: Access Exchange from outside firewall
- From: "Vince Tan" <VinceT@xxxxxxxxxxxx>
- To: <thin@xxxxxxxxxxxxx>
- Date: Wed, 12 Mar 2003 17:25:39 -0500
They need to sync to their mailbox for when they are on the road. I
might have to use pop or trying imap now. Or might have to use VPN.
Vince
-----Original Message-----
From: Chris Lynch [mailto:lynch00@xxxxxxx]=20
Sent: Wednesday, March 12, 2003 5:09 PM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: OT: Access Exchange from outside firewall
=3D20
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Hash: SHA1
Correct. There was just a VERY long discussion in the MS Security Focus
mailing list because someone wanted to open ports to allow an Outlook
client to directly attach to an Exchange server from the Internet.
Some said to use ISA server, while others (like me) said to use a VPN
device. You NEVER want to open RPC to the Internet. You are just
begging hackers to break into your system and get critical information.
Again, my question goes back to "why are you wanting to open ports for
your Exchange server to the Internet?" Is it because someone wants to
get to their mailbox? If so, then either publish Outlook, or have them
connect to OWA (secured with an SSL certificate).
Chris
- -----Original Message-----
From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On
Behalf Of Ryan Lambert
Sent: Wednesday, March 12, 2003 2:01 PM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: OT: Access Exchange from outside firewall
What are your objectives?
I would suggest maybe just POP the box, unless you want the Exchange
Address Book/Public Folders/etc. Or better yet, implement a published
application via Citrix and create a connection that way. ;-)
Personally, I am not in favor of opening any more ports than absolutely
necessary.
- -----Original Message-----
From: Chris Lynch [mailto:lynch00@xxxxxxx]=3D3D20
Sent: Wednesday, March 12, 2003 4:48 PM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: OT: Access Exchange from outside firewall
=3D3D3D20
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Hash: SHA1
Why are you doing this? You need to open more ports than what you have
=3D =3D3D3D selected. Mainly, the GC port, port 135, possibly 139. Why =
not
=3D use a =3D3D =3D3D3D VPN connection? If you have Windows 2000, use =
RRAS.
If =3D not, then look =3D3D3D for a project called Wolverine. It's a =
small
=3D distro that will give you =3D3D3D PPTP VPN support. Very easy to =
setup,
=3D and is Linux based.
Chris
- - -----Original Message-----
From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On =
=3D
=3D3D =3D3D3D Behalf Of Vince Tan
Sent: Wednesday, March 12, 2003 1:39 PM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] OT: Access Exchange from outside firewall
Hi Everyone, I've been working on this for the better half of the day =
=3D
=3D3D =3D3D3D and can't seem to get anywhere. I'm trying to setup an =
=3D
Outlook client =3D3D =3D3D3D to connect to my Exchange 2K server. The =
=3D
Outlook client is outside the =3D3D3D firewall connected via the =
internet.
=3D I already setup the =3D3D3D =3D
HLKM\System\CurrentControlSet\Service\MSExchangeDS\Parameters,
HKLM\System\CurrentControlSet\Services\MSExchangeIS\ParametersSystem to
=3D =3D3D3D point to static port. I also configured the firewall =
already
for =3D those =3D3D3D 2 ports.=3D3D3D3D20
When I start the Outlook client, I get "Exchanger server unavailable". =
=3D
=3D3D =3D3D3D Oh, I also set up the hosts file to point to the right ip =
=3D
address for =3D3D =3D3D3D the exchange server.
Thanks for any help
Vince
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Get 30-40% more users per server to save $$$ and time.=3D20
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