What are “User Defined Rules” mentioned in Azure Fundamentals Skills Measured document?

In the document Exam AZ-900: Microsoft Azure Fundamentals – Skills Measured, under the section “Understand security, privacy, compliance and trust”, and the subsection “Understanding securing network connectivity in Azure”, the third bullet reads “User Defined Rules (UDR)”. I searched extensively on the Azure website and with a google search, with no result. What are they?

Commvault and AWS S3 performance

We’re trying to upload 150TB into S3 using Commvault. However we’re only able to upload about half a terrabyte a day with a 1.5Gbs dedicated line. We’ve also enabled the following recommendations: https://documentation.commvault.com/commvault/v11_sp10/article?p=features/cloud_storage/r_cloud_storage_best_practices_s3.htm https://documentation.commvault.com/commvault/v11_sp10/article?p=features/performance_tuning/tunable_parameters.htm#Cloud_Connection_Performance_Tuning Is there anything else we can do to increase the ingestion rate into S3?