[isalist] Re: Looking for pitfalls
- From: Jim Harrison <Jim@xxxxxxxxxxxx>
- To: "isalist@xxxxxxxxxxxxx" <isalist@xxxxxxxxxxxxx>
- Date: Wed, 10 Oct 2007 08:50:17 -0700
http://www.ISAserver.org
-------------------------------------------------------
I didn't say that; I said that if ISA is expected to pass domain-based traffic
(usually found as RPC & DCOM), you can expect lots of "interesting" problems;
many of which are irresolvable.
It's a looooong discussion, but the short for is that any DCOM traffic crossing
ISA borders is problematic at best.
Sometimes you can limit the ports used by the server app, sometimes not.
-----Original Message-----
From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-bounce@xxxxxxxxxxxxx] On
Behalf Of Steve Moffat
Sent: Wednesday, October 10, 2007 8:43 AM
To: ISA Mailing List
Subject: [isalist] Re: Looking for pitfalls
http://www.ISAserver.org
-------------------------------------------------------
Ahh...So if you're isolating the domains, ie totally separate, no contact, then
there are no issues?
S
-----Original Message-----
From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-bounce@xxxxxxxxxxxxx] On
Behalf Of Jim Harrison
Sent: Wednesday, October 10, 2007 12:40 PM
To: ISA Mailing List
Subject: [isalist] Re: Looking for pitfalls
http://www.ISAserver.org
-------------------------------------------------------
That's not true either; ISA can use LDAP to authenticate foreign domain
accounts without being a member of either - that's exactly why we added LDAP
auth.
It's the cross-ISA domain traffic that makes it nearly impossible.
IOW, if there exists any form of cross-domain trusted traffic that crosses ISA
boundaries, you will have problems.
-----Original Message-----
From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-bounce@xxxxxxxxxxxxx] On
Behalf Of Thor (Hammer of God)
Sent: Wednesday, October 10, 2007 8:30 AM
To: isalist@xxxxxxxxxxxxx
Subject: [isalist] Re: Looking for pitfalls
http://www.ISAserver.org
-------------------------------------------------------
Not at all... it is only an "issue" if you need AD-based authentication
for both domains. If so, then you'll just need to create a trust (one
way will work just fine). What "cross-trust issues" are you referring
to?
t
-----Original Message-----
From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-bounce@xxxxxxxxxxxxx]
On Behalf Of JB
Sent: Wednesday, October 10, 2007 8:07 AM
To: isalist@xxxxxxxxxxxxx
Subject: [isalist] Re: Looking for pitfalls
http://www.ISAserver.org
-------------------------------------------------------
So.... All would agree that having two domains behind ISA 2006
creates enough complexity (for one who does not enjoy cross-trust
relationship between domains issues) for it to be impractical?
JB
On Oct 8, 2007, at 8:53 AM, Jim Harrison wrote:
> http://www.ISAserver.org
> -------------------------------------------------------
>
> Actually, it's both.
> Domain traffic across ISA is a great reason to increase your
> illicit substance use.
> Have a peek at the RPC-oriented fixes in ISA; nearly all of them
> have been driven by domain scenarios; some because of RPC protocol
> changes in the OS.
>
> -----Original Message-----
> From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-
> bounce@xxxxxxxxxxxxx] On Behalf Of Thor (Hammer of God)
> Sent: Monday, October 08, 2007 8:33 AM
> To: isalist@xxxxxxxxxxxxx; isalist@xxxxxxxxxxxxx
> Subject: [isalist] Re: Looking for pitfalls
>
> That's what I was going to say ;)
>
> It's not "multiple domains behind ISA," it's the way you want trust
> to work within those "multiple domains behind ISA."
>
> If you don't have some sort of cross-trust relationship between the
> domains, only users within the domain that the ISA server is a
> member of can use rules that require user authentication (including
> certificates).
>
> t
>
> ________________________________
>
> From: isalist-bounce@xxxxxxxxxxxxx on behalf of Jim Harrison
> Sent: Fri 10/5/2007 12:49 PM
> To: isalist@xxxxxxxxxxxxx
> Subject: [isalist] Re: Looking for pitfalls
>
>
>
> http://www.ISAserver.org <http://www.isaserver.org/>
> -------------------------------------------------------
>
> the question of cross-ISA domain / forest traffic is gonna make you
> drink (more).
>
> -----Original Message-----
> From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-
> bounce@xxxxxxxxxxxxx] On Behalf Of Thomas W Shinder
> Sent: Friday, October 05, 2007 11:50 AM
> To: isalist@xxxxxxxxxxxxx
> Subject: [isalist] Re: Looking for pitfalls
>
> http://www.ISAserver.org <http://www.isaserver.org/>
> -------------------------------------------------------
>
> Ha! I'll brew a pot on your behalf and I already have the skittles
> in my
> desk drawer :)
>
> -----Original Message-----
> From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-
> bounce@xxxxxxxxxxxxx]
> On Behalf Of JB
> Sent: Friday, October 05, 2007 1:37 PM
> To: isalist@xxxxxxxxxxxxx
> Subject: [isalist] Re: Looking for pitfalls
>
> http://www.ISAserver.org <http://www.isaserver.org/>
> -------------------------------------------------------
>
> Brilliant!!!
>
> How do I send you a pot of coffee and bag of skittles? ;-)
> On Oct 5, 2007, at 11:28 AM, Thomas W Shinder wrote:
>
>> http://www.ISAserver.org <http://www.isaserver.org/>
>> -------------------------------------------------------
>>
>> Sounds like an excellent scenario for an article! I'll pound it out
>> this
>> weekend.
>>
>> Thanks!
>>
>> Tom
>>
>> -----Original Message-----
>> From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-
>> bounce@xxxxxxxxxxxxx]
>> On Behalf Of JB
>> Sent: Friday, October 05, 2007 12:12 PM
>> To: isalist@xxxxxxxxxxxxx
>> Subject: [isalist] Looking for pitfalls
>>
>> I would like to indulge the minds of ISA List on the pitfalls of
>> having
>> two separate networks/domains behind one ISA 2006 firewall.
>>
>> The main question: How does authentication in ISA 2006 work with two
>> domains?
>>
>> Any thoughts would be greatly appreciated - I should probably
>> rephrase
>> this ;-)
>>
>> Scenario:
>> Both domains are Windows 2003.
>> Both domains have Exchange servers publishing OWA etc...
>> Both domains have users requiring RDP and VPN access All users except
>> admins are not allowed into opposing network
>>
>>
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