Using the AWS CLI to get a public hostname

We use this for the next step,  amending Putty.

• Assumptions : 
• We know the instance-id 
• We have a working CLI. 

So we use ec2-describe-instances 

C:\Users\Chris\.aws>

We use a filter to only get info for our instance. 

We use a query to only output the Public DNSNAME 

aws ec2 describe-instances 

--filters "Name=instance-id,

Values=i-xxxxxx"

 --query

 "Reservations[*].Instances[*].{dz:PublicDnsName}" 

--output  text

C:\Users\Chris\.aws>aws ec2 describe-instances --filters "Name=instance-id,Value

s=i-xxxxxxxx" --query "Reservations[*].Instances[*].{dz:PublicDnsName}" --output

 text

ec2-255-255-255-5255.eu-west-1.compute.amazonaws.com

So now we have our public DNSNAME, and with that we can change our putty settings !