Hi @szymon_dybczak, is there any way around that?  We do not plan to use hive_metastore in favor of Unity Catalog, but we need it for the purpose of allowing our staff to go through the Databricks provided learning content. 

If we would open this port to allow connections to this endpoint, what type of data is stored there?  I would need to be able to justify this change to our security teams and therefore need to better understand the purpose and content within that endpoint.