curl -v http://169.254.169.254/

HTTP/1.1 401 Unauthorized

curl http://169.254.169.254/

See also

• IMDS, IMDS versions (IMDSv2), IMDS initiate session, ec2-imdsv2-check, aws ec2 modify-instance-metadata-options, /latest/meta-data, /latest/user-data, modify-instance-metadata-defaults
• 169.254.169.254