Power BI on-premises data gateway on DMZ?

[MayAS]

Does anyone have experience placing the gateway in a perimeter network (also known as DMZ, demilitarized zone, and screened subnet)?

If the data gateway is on a VM in the DMZ and the VM is not joined to the domain/forest then it not will be able to connect to an analysis server I assume since SSAS requires windows authentication. We would still be able to connect to a SQL Server though.

Is placing a gateway on the DMZ not a recommended approach? anyone has experience with this approach please.

[KV34]

We have two DMZs, outer and inner DMZ's - Can power apps connect to a gateway in inner DMZ, via Web server like IIS or tomcat? or what would be ideal to solution to connect power apps to data sources in intranet, ex: VPN tunnel to gateway (running on inner dmz)? 

[Anonymous]

I have set up a gateway on a DMZ through ESXI. However, we created an SSIS job to copy the neccesary info from a production server to the server on the DMZ so that no access to the network was needed.

Also, you should be able to connect to SSAS via basic auth btw.

https://docs.microsoft.com/en-us/analysis-services/instances/authentication-methodologies-supported-...

[MayAS]

Thank you for the information. In this case I would have to create a job that copies the SSAS model to a server on the DMZ which would work.

In the case though that the data gateway and SSAS are not on the same domain, it won't work because for data gateway SSAS data sources there seems to be only one option which is a windows user for authentication. I'm assuming that's why Microsoft indicates that for SSAS data sources the data gateway and analysis server have to be on the same domain/forest.

See this link

https://docs.microsoft.com/en-us/power-bi/connect-data/service-gateway-enterprise-manage-ssas

It has the following two notes

"If you have an Analysis Services data source, you need to install the gateway on a computer joined to the same forest/domain as your Analysis Services server."

"The Windows account you enter must be a member of the Server Administrator role on the Analysis Services instance you're connecting to. If this account’s password is set to expire, users could get a connection error if the password isn’t updated for the data source"

[V-lianl-msft · Accepted solution]

Hi @MayAS ,

As you said, there are limitations, which are caused by the characteristics of gateways and SSAS.

https://docs.microsoft.com/en-us/data-integration/gateway/service-gateway-onprem-indepth

SSAS and gateways can be installed on different computers in the same domain, and you may resolve this limitation in other complex ways in different domains .

Best Regards,
Liang
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