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I am using AWS CLI. The error

A client error (SignatureDoesNotMatch) occurred when calling the ListBuckets operation: The request signature we calculated does not match the signature you provided. Check your key and signing method.

I tested the AWS CLI on my laptop and local server with the same credentials. There is no problem on my laptop. However, I get the error when I run on my local server.

What should I check?

  • You might check that the system clock on that instance is in sync, e.g. installing/running ntpd. A sufficient clock skew will cause request signature calculations to not match. – Castaglia Apr 5 '16 at 3:18

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