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:
Identify the Overlapping Address Space: Determine which address ranges are overlapping between the VNets.
Modify the Address Space: Update the address space of one of the VNets to ensure there is no overlap. This can be done in the Azure portal by navigating to the VNet, selecting "Address space" under "Settings," and modifying the address range.
Sync the Peering: After updating the address space, you need to sync the peering connection. Go to the "Peerings" section of the VNet, select the peering connection, and click "Sync".
Verify the Changes: Ensure that the address space changes have been applied correctly and that the peering connection is functioning as expected.
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:
Create the Private Endpoint:
In the Azure portal, navigate to "Private endpoints" and select "+ Create".
Fill in the required details such as subscription, resource group, name, and region.
Associate the NSG:
After creating the private endpoint, go to the "Network security groups" section in the Azure portal.
Create a new NSG if you don't have one already.
Add inbound and outbound security rules as needed.
Link the NSG to the Private Endpoint:
Navigate back to your private endpoint.
In the settings, select "Network security groups" and associate your NSG with the private endpoint's subnet.
This setup allows you to manage and secure the traffic to and from your private endpoint effectively.
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