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azurednsazure-dns

How to query for deleted DNS A record in Azure

I would like to setup an alert for when a DNS A record gets deleted within a DNS zone.

Let us assume the private DNS zone is called, privatelink.xx.arc.azure.com, is there a way to write a KQL/resource graph query which can then be used as part of an alert, either for when an A record is deleted or perhaps if any record is deleted from the zone.

Thanks in advance.

Solution

  • How to query for deleted DNS A record in Azure

    Here is the KQL query to check the deleted records in private DNS Zone.

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    Note: If the Activity Logs table is not showing, make sure to export the settings to a Log Analytics Workspace by navigating to Private DNS Zone > Activity Log > Export Activity Logs > Diagnostic Settings. Then, wait for some time to allow the logs to sync with the workspace."

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    Select New alert rule and configure the alert configuration details.

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    You will receive an alert after you delete the A record in the Private DNS Zone as shown below.

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    Follow the Stack Link for more details