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:
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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.
In azure key vault, if I prevent the public access, how can i access the key vault in order to manage the secrets ?
If you disable public access to your Azure Key Vault, you can still manage your secrets securely using the following methods:
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These methods ensure that your Key Vault remains secure while still being accessible for managing secrets.
What is the purpose of the outbound vnet integration for an azure function ?
The purpose of outbound VNet integration in Azure Functions is to enable your function app to securely connect to resources within a virtual network (VNet) and control outbound traffic. Here are the key benefits:
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Description: Supports secure connections to on-premises resources through VPN tunnels, ExpressRoute, and peered virtual networks.
Use Case: Beneficial for hybrid cloud scenarios where the function app needs to interact with on-premises systems.
Can we use inbound and outbound VNet integration together ?
Yes, you can use both inbound and outbound VNet integrations together for your Azure Function. This setup allows you to control both the incoming and outgoing traffic to and from your function app, enhancing security and connectivity.
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Benefits:
Enhanced Security: By controlling both inbound and outbound traffic, you can ensure that your function app is only accessible to and from trusted networks.
Compliance: Helps meet organizational security and compliance requirements by restricting traffic to specific IP addresses or ranges.
Hybrid Connectivity: Supports secure connections to on-premises resources and other VNets, facilitating hybrid cloud scenarios.
In Azure Storage, does selecting specific virtual networks mean that the communication goes through the internet ?
No, selecting specific virtual network does not mean that the communication goes through the internet. The traffic remains within the Azure backbone network, ensuring it does not traverse the public internet.
To further secure the communication, we can use private endpoints : Configure Azure Storage firewalls and virtual networks | Microsoft Learn. They assign a private IP address from the VNet to the storage account, ensuring that all traffic between the VNet and the storage stays within the Azure Network : Azure virtual network service endpoints | Microsoft Learn
How to block the communication through internet using a network security group ?
Create a NSG.
Add outbound security rules (port, …).
Associate the NSG with a subnet or Network Interface.
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