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can you add a xenapp server to a farm that is not in the same domain?

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Last Modified: 2012-02-28
we have multiple domains at one site
DOMAIN A has a citrix xenapp 6 farm in it (FARM A)
DOMAIN B has no citrix farm within
we want to install xenapp on one of the servers in DOMAIN B and have it publish applications
will we be able to add it to FARM A which resides on a different domain?
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Carl WebsterCitrix Technology Professional - Fellow
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Commented:
I do not see a problem with that.  In the web interface you can enter multiple domains.  I have one customer with servers in 7 AD forests and it works.
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Carl WebsterCitrix Technology Professional - Fellow
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Commented:
Nope, 7 AD Forests each with 1 domain.  So, I guess technically 7 AD Domains.  But 7 AD Domains can be on 1 Forest or multiple forests.  I mean 1 domain each in 7 AD Forests.
Ayman BakrSenior Consultant
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Commented:
Great, I agree with you Carl; but in this scenario trust relationship is not by default and thus I am sure that company had created the two-way transitive trust relationship between the forests.
Top Expert 2010

Commented:
While it's possible, UPN form of authentication is not possible with multiple forest also Citrix recommend servers to be in same domain

Recommendations for Active Directory Environments
Citrix recommends the following configuration for server farms with Active Directory:•XenApp servers are in their own Organizational Units (OUs).
•All servers reside in the same domain.
•The server farm domain has no trust relationships with non-Active Directory domains, as this can affect operations requiring trusted domains.
•The server farm is in a single Active Directory forest. If your farm has servers in more than one forest, users cannot log on by entering user principal names (UPNs).
UPN logons use the format username@UPN identifier. With Active Directory, UPN logons do not require a domain to be specified, because Active Directory can locate full UPN logons in the directory. However, if the server farm has multiple forests, problems occur if the same UPN identifier exists in two domains in separate forests.
Important: Citrix XenApp does not support UPN logons if a server farm spans multiple Active Directory forests.

More information:

http://support.citrix.com/proddocs/topic/xenapp5fp-w2k8/ps-planning-ad-v2.html

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