Is it mandatory to create a private endpoint between 2 resources which are deployed in peered virtual networks ?
No, it is not mandatory to create a private endpoint between two resources deployed in peered virtual networks. Peered virtual networks allow resources in different VNets to communicate with each other directly using private IP addresses, without the need for a private endpoint.
However, using a private endpoint can provide additional security benefits by ensuring that traffic between the resources does not leave the Azure backbone network and by enabling more granular access controls.
What do we do if address spaces changes to a vnet overlap an address on a peering ?
We will need to resolve the overlap to maintain the peering connection. Here are the steps you can take:
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If the address spaces cannot be modified to avoid overlap, you may need to consider creating a new VNet with a non-overlapping address space and migrating resources to this new VNet.
Does Azure Private Endpoint provide a default network security group ?
No, Azure Private Endpoint does not provide a default network security group (NSG). However, you can associate a network security group with a private endpoint to control the traffic to and from the endpoint. This allows you to apply advanced security controls and manage network policies for your private endpoints.
How to protect a virtual network and prevent access from outside another virtual network in Azure ?
To protect a virtual network (VNet) in Azure and prevent access from outside another VNet, you can implement several security measures:
Network Security Groups (NSGs):
Use NSGs to control inbound and outbound traffic to your VNet. You can create rules to allow or deny traffic based on source and destination IP addresses, ports, and protocols.
Azure Firewall:
Deploy Azure Firewall to provide a centralized network security policy. It can filter traffic between VNets and enforce rules to block unauthorized access.
Service Endpoints:
Enable service endpoints to secure your Azure services by extending your VNet identity to the service. This ensures that traffic to the service remains within the Azure backbone network.
Private Endpoints:
Use private endpoints to connect to Azure services privately. This ensures that traffic between your VNet and the service does not traverse the public internet.
Virtual Network Peering:
Use VNet peering to connect VNets within the same region or across regions. This allows resources in different VNets to communicate with each other securely.
Azure DDoS Protection:
Enable Azure DDoS Protection to safeguard your VNet from distributed denial-of-service attacks.
Zero Trust Network Security:
Adopt a Zero Trust approach by verifying every access request as though it originates from an open network. This includes strong authentication, authorization, and continuous monitoring.
How is a network security group created when a private endpoint is created?
When you create a private endpoint in Azure, a network security group (NSG) is not automatically created. However, you can manually associate an NSG with the private endpoint to control traffic. Here’s how you can do it:
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This setup allows you to manage and secure the traffic to and from your private endpoint effectively.
What is the purpose of a private endpoint between 2 azure resources ?
A private endpoint in Azure is used to securely connect two Azure resources using a private IP address within your virtual network. Here are the key purposes:
Enhanced Security: By using a private endpoint, traffic between the resources does not traverse the public internet, reducing exposure to potential threats.
Private Connectivity: It allows for private and secure connectivity to Azure services such as Azure Storage, Azure SQL Database, and more, within your virtual network.
Network Segmentation: Private endpoints provide granular segmentation of network access to specific resources, ensuring that only authorized clients can access the service.
Compliance: Helps in meeting compliance requirements by ensuring data does not leave the Azure backbone network.
Why an azure key vault is not deployed by default in a virtual network ?
Azure Key Vault is not deployed by default in a virtual network for several reasons:
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If you need to restrict access to your Key Vault to specific virtual networks, you can configure it to use virtual network service endpoints or private endpoints. This ensures that only resources within the specified virtual networks can access the Key Vault.
Why Azure Storage account is not deployed by default in a Virtual network ?
Azure Storage accounts are not deployed by default in a virtual network for several reasons:
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If you need to restrict access to your storage account to specific virtual networks, you can configure it to use virtual network service endpoints or private endpoints. This ensures that only resources within the specified virtual networks can access the storage account.
What is the difference between virtual networks connected and virtual networks peered in azure ?
In Azure, the terms "virtual networks connected" and "virtual networks peered" refer to different methods of linking virtual networks (VNets). Here's a breakdown of the differences:
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Peering: Best for low-latency, high-bandwidth, private connections within Azure.
VPN Gateways: Suitable for secure, encrypted connections that can tolerate higher latency and lower bandwidth, often used for hybrid cloud scenarios involving on-premises networks.
Can we create a peering network between azure data factory managed virtual network and another virtual network ?
Currently, you cannot create a peering network between an Azure Data Factory managed virtual network (MVN) and another virtual network. The managed virtual network in Azure Data Factory is designed to be isolated and secure, but it does not support peering with other virtual networks.
However, you can still securely connect to other Azure resources using managed private endpoints. These endpoints allow you to establish private links to Azure services like Azure SQL Database, Azure Storage, and more, ensuring that traffic remains within the Microsoft backbone network.
Is an azure firewall mandatory after creating a vnet peering ?
No, an Azure Firewall is not mandatory after creating a VNet peering. VNet peering allows virtual networks to communicate with each other directly through the Azure backbone network, and this communication does not require an Azure Firewall.
However, you might choose to use an Azure Firewall or other network security solutions to control and monitor traffic between the peered virtual networks for enhanced security and compliance. This can be particularly useful in scenarios where you need to enforce specific security policies or inspect traffic between the networks.
Is an azure network security group similar to an azure firewall ?
An Azure Network Security Group (NSG) and an Azure Firewall serve different purposes, though both are essential for securing your Azure environment:
Azure Network Security Group (NSG)
Layer: Operates at OSI layers 3 and 4.
Function: Acts as a basic firewall to control inbound and outbound traffic to and from Azure resources within a virtual network (VNet). It uses rules based on source and destination IP addresses, ports, and protocols.
Scope: Typically applied at the subnet or network interface level.
Use Case: Ideal for controlling traffic between resources within a VNet or between VNets.
Azure Firewall
Layer: Operates at OSI layers 3, 4, and 7.
Function: A managed, cloud-based network security service that protects your Azure Virtual Network resources. It provides advanced threat protection, including deep packet inspection, intrusion detection and prevention, and application-level filtering¹².
Scope: Can be deployed at the network perimeter to control traffic between your VNet and external networks, including the internet.
Use Case: Suitable for comprehensive security needs, including threat intelligence and centralized policy management.
In summary, while both NSGs and Azure Firewall can control network traffic, NSGs are more focused on basic traffic filtering within a VNet, whereas Azure Firewall offers more advanced security features and is used for broader network protection.
Can we deploy a private endpoint between 2 resources which have been deployed in 2 different peered virtual networks in Azure ?
Yes, you can deploy a private endpoint between two resources in different peered virtual networks in Azure. When you create a private endpoint, it allows secure and private connectivity to Azure services over the Microsoft backbone network. This setup works even if the resources are in different virtual networks, as long as those virtual networks are peered.