DNS On Cloud [Route 53]

Habeeb| @habi_pk | pk.habi@gmail.comJanuary 2016 | AWS User Group | Bangalore

Low-latency DNS resolutionAnycast1000s of NameServersOver 50 Edge Locations

Low-latency DNS resolutionA zone is hosted across four top-level domains (.com, .net, .co.uk, and .org)

Stripe: all the nameservers in one top-level domain

One Stripe per edge location

Public Hosted Zones

Private Hosted Zones

Split View DNS

Zone ApexCNAME & Other DataCNAME Flattening

Zone ApexAmazon Route 53–specific extension to DNS functionality

Contains a pointer to

CloudFront distribution

ELB load balancer

Amazon S3 bucket that is configured as a static website

Another Amazon Route 53 resource record set in the same hosted zone

Weighted Round Robin

Latency Based RoutingServe from the Amazon EC2 region for which network latency is lowest

Geo DNSBased on the location from which DNS queries originateBy continent, by country, or by state in the United States‘Default’ resource record set EDNS0: edns-client-subnet extension

DNS FailoverActive-passive failover

HealthChecks and MonitoringHTTP, HTTPS, or TCPIP address and port to checkHTTP/HTTPS: a domain name and path.Cloudwatch

HealthCheckSimple Route 53 Configurations

HealthCheckComplex Route 53

Configurations

Domain Registration

Q & A