About Me
Azure Administrator Associate (AZ-104)
1 Manage Azure identities and governance
1-1 Manage Azure AD objects
1-2 Manage role-based access control (RBAC)
1-3 Manage subscriptions and governance
2 Implement and manage storage
2-1 Manage storage accounts
2-2 Manage blob storage
2-3 Manage disk storage
2-4 Manage file shares
2-5 Implement Azure Backup
3 Deploy and manage Azure compute resources
3-1 Manage virtual machines (VMs)
3-2 Manage VM extensions
3-3 Manage virtual machine scale sets (VMSS)
3-4 Manage Azure App Services
3-5 Manage Azure Container Instances (ACI)
3-6 Manage Azure Kubernetes Service (AKS)
4 Configure and manage virtual networking
4-1 Manage Azure virtual networks
4-2 Manage network security groups (NSGs)
4-3 Manage Azure DNS
4-4 Manage Azure load balancers
4-5 Manage Azure Application Gateway
4-6 Manage Azure VPN Gateway
4-7 Manage Azure ExpressRoute
4-8 Manage Azure Traffic Manager
4-9 Manage Azure Content Delivery Network (CDN)
5 Monitor and back up Azure resources
5-1 Monitor resources using Azure Monitor
5-2 Implement and manage Azure Backup
5-3 Implement and manage Azure Site Recovery
5-4 Implement and manage Azure Security Center
5-5 Implement and manage Azure Update Management
Manage Azure DNS

Manage Azure DNS

Key Concepts

Azure DNS

Azure DNS is a hosting service for DNS domains that provides name resolution using Microsoft Azure infrastructure. It allows you to manage your DNS records using the same credentials, APIs, tools, and billing as your other Azure services.

Example: Think of Azure DNS as a phonebook for the internet. It translates human-readable domain names (like www.example.com) into machine-readable IP addresses (like 192.0.2.1).

DNS Zones

A DNS Zone is a container for DNS records for a specific domain. It holds the DNS records for that domain, such as A records, CNAME records, and MX records. Each DNS zone is associated with a specific domain name.

Analogy: Consider a DNS Zone as a folder in a filing cabinet. Each folder (zone) contains documents (records) related to a specific topic (domain).

DNS Records

DNS Records are entries in a DNS zone that define how domain names are resolved to IP addresses or other domain names. Common types of DNS records include A records (which map a domain to an IPv4 address), CNAME records (which map a domain to another domain), and MX records (which specify mail servers for a domain).

Example: An A record for www.example.com might point to the IP address 192.0.2.1, while an MX record for example.com might specify that emails should be sent to mail.example.com.

Alias Records

Alias Records in Azure DNS allow you to create an alias for a domain name that points to an Azure resource, such as an Azure Blob Storage account, an Azure CDN endpoint, or an Azure Traffic Manager profile. Alias records provide a way to ensure that your domain name always points to the correct resource, even if the resource's IP address changes.

Analogy: Think of an Alias Record as a nickname for an Azure resource. Just as you might have a nickname that you use instead of your full name, an Alias Record allows you to use a domain name instead of the full resource name or IP address.

Conclusion

Managing Azure DNS involves understanding and effectively using DNS Zones, DNS Records, and Alias Records. By leveraging these concepts, you can ensure that your domain names are correctly resolved to the appropriate resources, providing a seamless experience for your users.

© 2024 Ahmed Baheeg Khorshid. All rights reserved.