Azure Virtual Network
Introduction
Azure Virtual Network (VNet) is a fundamental building block for your private network in Azure. It allows you to securely connect Azure resources with each other, with on-premises networks, and the internet, providing a high degree of control over your network topology.
Key Points
- Azure VNet is isolated and secure.
- You can control IP address ranges, DNS settings, security policies, and route tables.
- VNets can be connected to each other using VNet Peering.
- Integrates with Azure services like Azure VPN Gateway for hybrid connectivity.
Step-by-Step Guide to Create an Azure Virtual Network
1. Log in to Azure Portal
2. Create a Virtual Network
az network vnet create --name MyVNet --resource-group MyResourceGroup --address-prefix 10.0.0.0/16 --subnet-name MySubnet --subnet-prefix 10.0.0.0/243. Configure Subnet
az network vnet subnet create --address-prefix 10.0.1.0/24 --name MySubnet --resource-group MyResourceGroup --vnet-name MyVNet4. Connect to the Internet
Set up a public IP address and attach it to your VNet resources.
Best Practices
- Use subnets for better organization and management.
- Implement Network Security Groups (NSGs) for enhanced security.
- Utilize Azure Bastion for secure RDP and SSH access to your VMs.
- Regularly monitor and audit your virtual network settings.
FAQ
What is the maximum number of VNets I can create?
You can create up to 50 VNets by default per Azure subscription, but this limit can be increased by requesting a quota increase from Microsoft.
Can I connect VNets in different regions?
Yes, Azure supports VNet peering across different regions, allowing you to connect resources in different geographic locations.
What are the costs associated with Azure Virtual Networks?
Azure Virtual Networks themselves are free; however, there may be charges for resources attached to the VNet, such as VPN gateways and data transfer fees.