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AWS Route 53 Resolver — Hybrid DNS Management
Route 53 Resolver provides DNS resolution for hybrid cloud environments, enabling seamless communication between on-premises and AWS resources.
What it is
- A scalable DNS service that provides DNS resolution for resources in AWS and on-premises.
- Enables hybrid cloud architectures by facilitating DNS queries across environments.
When I reach for it
- When integrating on-premises infrastructure with AWS services.
- To resolve DNS queries for resources in VPCs and on-premises networks.
- When you need to maintain a consistent DNS namespace in a hybrid setup.
Key architectural decisions
- Choose between forwarding rules or conditional forwarding based on DNS query requirements.
- Decide on the use of inbound and outbound endpoints for managing DNS traffic.
- Plan for failover and redundancy to ensure high availability of DNS resolution.
Gotchas & exam traps
- Remember that Route 53 Resolver is distinct from Route 53; it specifically addresses hybrid environments.
- Be aware of the limits on the number of inbound/outbound endpoints and rules per account.
- DNS caching can impact resolution times; consider TTL settings.
The architect view
- Route 53 Resolver is essential for hybrid cloud architectures, enabling seamless DNS resolution across AWS and on-premises environments. Properly architecting the DNS setup ensures reliability and performance, facilitating effective communication between diverse resources.