DNS Resolution in VPC

  • Two settings
  • enableDnsSupport
  • It is DNS Resolution Setting
  • Default is true
  • Helps if DNS Resolution is supported for VPC
  • If true, queries the AWS DNS Server at 169.254.169.253
  • enableDnsHostname
  • It is DNS Hostname Setting
  • Default value
    • false in Custom VPC
    • true in Default VPC
  • If true, a public hostname assigned to the Instance
  • If false, only IP assigned to the Instance