Hi all,

I am looking at a slightly tricky situation, at least for me - I'm sure you
guys would find this a "walk in the park" :-)

I have a situation where there are two forests (2003 Forest Functional
Level). Each contains a single domain. One domain is a resource domain
(DomainB), and the other contains the user accounts (DomainA). There is a
one-way forest trust, such that the resource forest/ domain trust the user
forest (and domain).

The situation I have is as follows:

Client ---> ISA Server 2006 ---> Web Server ---> App Server

The user that is logged on to the client is from DomainA. All the servers
belong to DomainB. The user's credentials need to be passed from the web
server back to the app server. So I could use Basic Authentication all the
way through. Or I can try to use Kerberos & delegation.

Now, ISA Server can use protocol transition, so that Client ---> ISA Server
can be something other than Kerberos (e.g. forms authentication), however
Protocol Transition then requires the use of constrained delegation. Am I
right in thinking that constrained delegation is limited to accounts in the
same domain? If so, then the fact that the user is in a different domain to
the ISA Server will cause this to fail.

On the other hand, if I didn't use constrained delegation, just regular
delegation (and no protocol transition), does that work across Forests
though? I have read conflicting reports on this. I'm having some difficulty
getting it working, so either the answer is "no", or my skills aren't up to
the task (probably the latter, in combination with the former).

Cheers
Ken

--
My Blog: www.adOpenStatic.com/cs/blogs/ken

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