DNS Architecture
This section of the documentation describes the DNS Architecture.
Public Access URLs
| URL Type | Example | Purpose |
|---|---|---|
| Cluster-specific | <prefix>.<region>.cloudapp.azure.com | Direct access to a specific cluster |
| Global DR | <hostname>.<zone> | Failover-aware access via Traffic Manager |
DNS Resolution Chain
Cluster-specific URL (direct access)
text
<prefix>.<region>.cloudapp.azure.com
│
│ Azure DNS (cloudapp.azure.com zone)
▼
<public-ip> (Public IP of cluster LB)Global DR URL (failover-aware access):
text
<hostname>.<zone>
│
│ External DNS CNAME (Route 53, etc.)
▼
<hostname>.trafficmanager.net
│
│ Azure Traffic Manager (Priority routing)
▼
<primary-ip> ──or──▶ <secondary-ip> (if primary unhealthy)Traffic Flow: Normal vs Failover
Normal operation:
 |
During failover:
 |
DR failover sequence:
 |