Example script for testing DNS and connectivity to the Application Insights from a Power Platform environment connected to a customer managed Azure subnet via enterprise policy

Test-VNETAppInsightsConnectivity.ps1

Import-Module -Name "Microsoft.PowerPlatform.EnterprisePolicies" -ErrorAction Stop

Connect-AzAccount

$tenantId      = "<YOUR TENANT ID>"
$environmentId = "<ENVIRONMENT ID>"
$hostname      = "dc.services.visualstudio.com"

Test-DnsResolution `
    -EnvironmentId $environmentId  `
    -HostName      $hostname `
    -TenantId      $tenantId `
    -Endpoint      prod `
    -Region        "eastus"

Test-DnsResolution `
    -EnvironmentId $environmentId  `
    -HostName      $hostname `
    -TenantId      $tenantId `
    -Endpoint      prod `
    -Region        "westus"
    
Test-NetworkConnectivity `
    -EnvironmentId $environmentId `
    -Destination   $hostname `
    -Port          443 `
    -TenantId      $tenantId `
    -Endpoint      prod `
    -Region        "eastus"

Test-NetworkConnectivity `
    -EnvironmentId $environmentId `
    -Destination   $hostname `
    -Port          443 `
    -TenantId      $tenantId `
    -Endpoint      prod `
    -Region        "westus"
 
<# EXAMPLE PUBLIC DNS IP

Non-authoritative answer:
Name:    gig-ai-g-prod-eastus-3-app-v4-tag.eastus.cloudapp.azure.com
Address:  52.179.73.59
Aliases:  dc.services.visualstudio.com
          dc.applicationinsights.microsoft.com
          dc.applicationinsights.azure.com
          global.in.ai.monitor.azure.com
          global.in.ai.privatelink.monitor.azure.com
          dc.trafficmanager.net
          eastus-global.in.applicationinsights.azure.com
          gig-ai-prod-eastus-global.trafficmanager.net

#>