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The metadata (IPv4: 169.254.169.254 / IPv6: [fd00:ec2::254]) service is only accessible from the respective instance.
This is very useful if you want to script somethingand you need some data of the instance itself.
Annotation: The address listed here is a loopback address of the VM within the APIPA (Automatic Private IP Addressing) range.
PS> Get-Alias -Definition Invoke-WebRequest | Format-Table -AutoSize CommandType Name Version Source ----------- ---- ------- ------ Alias curl -> Invoke-WebRequest Alias iwr -> Invoke-WebRequest Alias wget -> Invoke-WebRequest
Annotation: This service also exists in Azure and is even accessible under the same IP.