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Azure Sentinel: Collecting logs from Microsoft Services and Applications
Published Aug 07 2019 02:30 AM 64.9K Views

This is part of a series of blogs on connectors. You might find what you are looking for also here:


In this blog post:

  • The Azure Monitor collection framework
  • How to connect Azure resources to Azure Sentinel
  • Understanding the Azure monitor schema
  • Collecting from specific Microsoft and Azure sources 


Azure Sentinel supports collecting telemetry from a wide array of Microsoft sources. Some of them are listed in the Sentinel's connector page and documentation. However, Sentinel can collect logs from most Azure services and other Microsoft products, even when not listed above. 


The Azure Monitor collection framework


Azure Monitor, and its Log Analytics module, is the underlying log management platform powering Azure Sentinel. As such, any source that sends logs to Azure Monitor or Log Analytics supports inherently Azure Sentinel. Most Azure and Microsoft solutions support sending telemetry to Azure monitor. You can read more about Azure Monitor collection here: "Collect Azure platform logs in Log Analytics workspace in Azure Monitor."  


How can I collect from a supported Azure source?


The following provides a guide as to how to connect each resource using the portal to Log Analytics/Azure Sentinel. The actual portal flow may differ from resource to resource. 


To log a service to Sentinel, pick the service (1), select "Activity Log" from the menu (2), and then click the "Logs" button (3). Note that on this screen, before pressing "Logs," you can review the information that will be sent to Sentinel.


2019-08-07 12_04_38-Clipboard.png


On the next screen, click "Add," then "Select workspace," and select the Sentinel workspace. In some cases, the service provides diagnostic telemetry but not audit logs. In such cases, use "Diagnostic settings" instead of "Activity Log" and select "Add diagnostic setting." Some sources do not use the method outlined above, and the instructions below would help,


Understanding and using the events


You can read more about the structure of the events received by Azure Monitor here. The telemetry may be stored in the AzureDiagnostics table or in a dedicated table depending on the mode used by the source.


Each event will include several standard fields such as time, Resource Id, and Tenant ID as described here, as well as per resource fields. Several standard fields available in each Log Analytics table and not just Azure resource tables such as TimeGenerated, Type, and billing information are listed here.


Also, you can find a full reference - still under construction - to the Azure Monitor table schema for all sources, not just Azure ones, here. The Azure Monitor GitHub contains queries and workbooks for many Azure services that can provide a starting point for understanding the logs sent by them.


The Big List


The bis list is now part of the grand list.

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‎Nov 09 2023 11:10 AM
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