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EC2 instance has no public DNS

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in AWS by (12.9k points)

A guy I work with gave me the EC2 credentials to log onto his EC2 console. I was not the one who set it up. Some of the instances show a public dns name and others have a blank public DNS. I want to be able to connect to the instances that have a blank public DNS. I have not been able to figure out why these show up as blank.

1 Answer

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by (18.2k points)

Try the following steps:

  • Open up your AWS console
  • Navigate to services and select VPC
  • Once in VPC dashboard, select the VPC connected to your EC2 instance
  • Click on Actions button -> Edit DNS Hostnames -> Change DNS hostnames to YES

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