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barry960's avatar
barry960
Copper Contributor
Mar 08, 2024

Azure SQL - port 13399

We have found an azure data studio connection on prem being dropped to an azure sql database because port 13399 was not being allowed. Whilst I'm aware of this: I have not seen this bef...
barry960's avatar
barry960
Copper Contributor
Mar 12, 2024

BabatundeDallas 

Hi thanks for the response.

where does it say 13399 is associated with DAC? I cannot find any reference to the port at all.

Thanks

BabatundeDallas's avatar
BabatundeDallas
Brass Contributor
Mar 13, 2024

barry960 the documentation does not explicitly mention the association between port 13399 and the DAC in the context of SQL Server listens, but it is a special connection used for administrative tasks. 

 

DAC operates on port 1434 or dynamically assigns to another TCP port during the Database Engine startup.  Kindly check the error log for the port number on which the DAC is listening. 

Note: These are essential administrative tasks and troubleshooting.

 

Thanks  

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