Azure Private Link is now available for multiple new Azure services

[Azure Private Link](https://azure.microsoft.com/en-us/services/private-link/) is now generally available for these services: * Azure Cognitive Search * Azure Event Hubs * Azure Service Bus * Azure Backup * Azure Container Registry * Azure Event Grid topics * Azure Event Grid domains Private Link is also available in preview for these services: * Azure SignalR Service * Azure IoT Hub Check [regional availability of supported services](https://docs.microsoft.com/en-us/azure/private-link/private-link-overview#availability). Get started with quickstarts and tutorials for [Azure portal](https://docs.microsoft.com/en-us/azure/private-link/create-private-endpoint-portal), [PowerShell](https://docs.microsoft.com/en-us/azure/private-link/create-private-endpoint-powershell) and [Azure CLI](https://docs.microsoft.com/en-us/azure/private-link/create-private-endpoint-cli). Learn more about [connecting to a Private Link resource through a private endpoint](https://docs.microsoft.com/en-us/azure/private-link/private-endpoint-overview#dns-configuration). * Azure Private Link * Virtual Network * Event Hubs * Event Grid * Service Bus * Azure Cognitive Search * Container Registry * Azure Backup * Azure SignalR Service * Azure IoT Hub * Compliance * Services * Security * [ Azure Backup](https://azure.microsoft.com/en-gb/services/backup/) * [ Container Registry](https://azure.microsoft.com/en-gb/products/container-registry/) * [ Event Grid](https://azure.microsoft.com/en-gb/products/event-grid/) * [ Event Hubs](https://azure.microsoft.com/en-gb/products/event-hubs/) * [ Azure IoT Hub](https://azure.microsoft.com/en-gb/products/iot-hub/) * [ Azure Private Link](https://azure.microsoft.com/en-gb/products/private-link/) * [ Azure Cognitive Search](https://azure.microsoft.com/en-gb/products/search/) * [ Service Bus](https://azure.microsoft.com/en-gb/products/service-bus/) * [ Azure SignalR Service](https://azure.microsoft.com/en-gb/products/signalr-service/) * [ Virtual Network](https://azure.microsoft.com/en-gb/products/virtual-network/)