Security Considerations: Adding alternative UserPrincipalName (UPN-) Suffixes to a Domain

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hello community,

i got know feature add more upn-suffixes domain.

so domain domaina.local , can add suffix contoso.com. users can act user1@contoso.com although account user1@domaina.local.

this useful me using sql server analysis services can use "effectiveusername" role security , can grant role memberships constoso.com-user , on.

my question is: security issues, problems or other disadvantages when add contoso.com-upn-suffix domaina.local domain?

kind regards
stefan

hi stefan,

basically there won’t impact add upn suffix domain, upn suffix give user ability use friendly user-logon name not match domain's or parent domains' naming structure, original domain name authentication won’t affected.

users can log on using user name or user principal name
http://support.microsoft.com/kb/243280/en-us

add user principal name suffixes

http://technet.microsoft.com/en-us/library/cc772007.aspx

“you can use active directory domains , trusts add user principal name (upn) suffixes existing user account. default upn suffix user account domain name system (dns) domain name of domain contains user account. can add alternative upn suffixes simplify administration , user logon processes providing single upn suffix users.”

besides, recommend apply upn suffix on ou level. let’s have different organizational units different clients. procedure allow automate , customize login while narrowing use of client domain name in active directory more granular level.

hope information above helpful you. if have questions, please feel free let me know.

best regards,

amy

please remember mark replies answers if , un-mark them if provide no help. if have feedback technet subscriber support, contact tnmff@microsoft.com.



Windows Server  >  Security



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