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Weird DNS issue....or works as intended?

Dear community,

Loving Sophos UTM so far. Running it as a VM in ESXi for now.

I'm hoping you guys are able to assist me with a question.

I have created screenshot series for your convinience, please look at the link further down.

Basically I'm wondering why I can't nslookup a "host definition" created manually in the UTM(see picture1), without adding the "domain.com" part to the hostname.
Also, what do I need to add to AD DNS options, besides the forwarder to Sophos UTM??

Background infrastructure:

Please note: UTM is NOT connected to WAN(test environment)

* DHCP + DNS on Windows 2012 R2 Domain controller (10.11.10.11)
* Added AD DNS forwarder to Sophos UTM(10.11.254.1)
* DNS lookup works fine internally
* VLAN's are currently only controlled by Sophos UTM

Pictures can be found on Google share, as there is too many to attach to this post.
[URL="https://drive.google.com/folderview?id=0B10icq75tFUufkFQVF9JMFBaVlp2MzlvRmRPZ2RhRmJ0aEJjbUVyRkdxX2IwaS12WnNxOEE&usp=sharing"]
drive.google.com/folderview
[/URL]
Thanks in advance
BR Jim

EDIT: I did follow the DNS Best practice thread, which I believe to have done correctly, please see my linked images.


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