I'm a developer so excuser my poor AD/OS talk.

We have a a domain controller with 2 further computers as shown.

Management Zone ========
DC

Demo Zone========

DODA
DOSE

We also have the Demo zone computers replecated across 3 other zones. Production, Development and Staging.

We have implemented several logical computers, IISVS, SQLVS, UPLVS and RPTVS on the zoned computers. We have done this by using enteries in the HOST file.

DODA
   + SQLVS

DOSE
   + IISVS
   + UPLVS
   + RPTVS


The problem is when I try and access a certian web service running on IISVS (DOSE) it challenges me for authentication and then rejects. however if I access the same webservice but instead of using the server alias name I just use local host or the actualy machine name it works just fine. ie.

http://IISVS:8080/WebService/ < Challenges and then fails
http://localhost:8080/WebService/ < Fine
http://DOSE:8080/WebService/ < Fine

I also noticed that I was unable to access my SQL server using the host file alias name (SQLVS) untill I created an alias using the SQL Client Network tools. I believe these are interelated problems.

Has anyone seen this behaviour before?

Thanks
Cam