DNS
Master DNS Services operations
Pair redundancy with rate limiting to keep queries fast and abuse-resistant.
- Default port
- 53
- Protocol
- UDP / TCP
- Primary use
- Domain name resolution
Why DNS Services matters
Every service depends on DNS; a misstep on port 53 cascades into outages.
Immediate actions
Deploy secondary resolvers, health checks, and anycast to absorb failures.
Operational guardrails
Enable response rate limiting and detailed logging to deter amplification attacks.