Merge pull request #207028 from johnmarco/jm-add-whitelist-api

Added note to whitelist urls to network requirements

Author: PRMerger8

articles/azure-arc/servers/network-requirements.md

@@ -58,6 +58,9 @@ The table below lists the URLs that must be available in order to install and us
 |`*.blob.core.windows.net`|Download source for Azure Arc-enabled servers extensions|Always, except when using private endpoints| Not used when private link is configured |
 |`dc.services.visualstudio.com`|Agent telemetry|Optional| Public |
 
+> [!NOTE]
+> To translate the `*.servicebus.windows.net` wildcard into specific endpoints, use the command `\GET /urls/allowlist?api-version=2020-01-01&location=<location>`. Within this command, the region must be specified for the <location> placeholder.
+
 ### [Azure Government](#tab/azure-government)
 
 | Agent resource | Description | When required| Endpoint used with private link |