# Networking A Virtual Network (VNet) must be in place in Azure and this VNet must contain a subnet. The Parallels RAS infrastructure machines will be joined to this subnet. Ensure the subnet you create or use has enough space to host the number of infrastructure servers you want to create. For more information about creating and changing a VNet see [Create, change, or delete a virtual network](https://learn.microsoft.com/en-us/azure/virtual-network/manage-virtual-network).
Example of a subnet configuration allowing enough space

Figure 1. Example of a subnet configuration allowing enough space

The VNet must have DNS configured to point to your Domain Controllers (see[ **Active Directory Domain Services (ADDS)**](https://docs.parallels.com/landing/ras-azure-marketplace-deployment-guide/v20/introduction/before-you-start/active-directory-domain-services)). For more information about configuring DNS servers on a VNet see [Change DNS servers of a virtual network using the Azure portal](https://learn.microsoft.com/en-us/azure/virtual-network/manage-virtual-network#change-dns-servers-of-a-virtual-network-using-the-azure-portal).
Example of a DNS configuration pointing to Active Directory Domain Controller

Figure 2. Example of a DNS configuration pointing to Active Directory Domain Controller(s)

Create a User Assigned Managed Identity and assign it Contributor Permissions on the Virtual Network you want to use, or on the Resource Group where the VNet resides. For more information about creating a user-assigned managed identity, see [Create a user-assigned managed identity](https://learn.microsoft.com/en-us/entra/identity/managed-identities-azure-resources/how-manage-user-assigned-managed-identities?pivots=identity-mi-methods-azp#create-a-user-assigned-managed-identity).
Example of User-Assigned Managed Identity and permissions on VNet

Figure 3. Example of User-Assigned Managed Identity and permissions on VNet

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