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Error 51 when accessing S3 buckets with periods (.) in the name

Error

When accessing Amazon S3 buckets with periods (.) in the name, S3Express reports error "51 - SSL: no alternative certificate subject name matches target host name".

This error is caused by validation failure of the SSL certificate for the Amazon S3 servers.

Solution

Upgrade S3Express to version 1.5.4 or newer. Upgrading is free if you already purchased a license for S3Express version 1, see: www.s3express.com/kb/item29.htm

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InvalidRequest - The authorization mechanism you have provided is not supported. Please use AWS4-HMAC-SHA256.

Error "400 - AuthorizationHeaderMalformed - The authorization header is malformed; Invalid credential date. Date is not the same as X-Amz-Date."

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