Azure networking overview

Understanding Microsoft Azure Architecture and Services

Florin Angelescu

Azure Architect

What is networking?

Networking

Connecting computers and devices
Share data and resources
Enables communication and collaboration
Includes hardware and communication protocols

Azure network services overview

Azure network services

What is an IP address?

IP address

Unique identification number for a device
Helps information find its way to the right device

¹ Learn more about IP addresses: https://tinyurl.com/datacamp-ipaddressing

What is an IP address space?

IP address space

Neighborhood where devices are located
Devices share a common part of the address (14.15.90.x)
Have a unique portion that sets them apart

¹ Learn more about IP addresses: https://tinyurl.com/datacamp-ipaddressing

Subnets

Subnets

Public vs. private

Public vs private

IP addresses can be public or private
Public IP addresses are accessible from the Internet
Private IP addresses can only connect devices within same IP address space

Cloud resources connectivity

Cloud resources connectivity

Azure virtual network (VNET)

Enables communication between cloud resources
Conceptual connections, not physical
Has a private IP space divided in subnets
Resources are directly connected to subnets

Private endpoints

Private endpoints

VNETs use private IP addresses (endpoints)
Resources within a VNET can communicate with each other
Resources within a VNET are not reachable from the Internet

Public endpoints - public IP

Public endpoints

To have Internet access, resources must have a public endpoint
One solution is to assign a public IP addresses to resources

Public endpoints - Azure-provided URL

Public endpoints

Some type of resources don't require public IP
They come with an Azure-provided URL to allow Internet connectivity

VNETs summary

VNETs summary

Has a private IP space
Space can be divided in subnets
Resources connect to subnets
Resources exchange data using private endpoints
Resources use public endpoints for Internet access

Connecting virtual networks

Connecting virtual networks

Network peering enables communication between VNETs
Bypasses public Internet
Uses Microsoft's network
Traffic is private

On-premises connectivity

On-premises connectivity

Connectivity between on-premises environment and the cloud
Achieved using Azure VPN Gateway
Allows access to Azure networks and resources
Data is encrypted and secure

Azure ExpressRoute

Azure ExpressRoute

Extends on-premises network into Azure cloud
Dedicated private connection
Bypasses the public Internet
Offers enhanced reliability, speed and security

Azure DNS

Azure DNS

DNS translates website names into computer-friendly addresses
Azure offers its own DNS service using cloud infrastructure
Enables management of DNS records
Offers scalability, security and integration with Azure resources

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Understanding Microsoft Azure Architecture and Services

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