Problem:

Having set up an AWS account lately (using S3 storage) I wanted to access my buckets through the means of a custom CNAME resolution (like virtual hosting mybucket.example.com rather than ugly s3.amazonaws.com address). Everything is explained in a straightforward manner at the Amazon’s Developer Guide, but it’s based on the US version, so I had to look for the appropriate hostname of the European grid.

Solution:

In fact I thought it would be more obvious to find, but, after all, I found the comment on the CarltonBale.com blog very useful.

The hostname used in the CNAME entry for EU buckets is to be set as: s3-external-3.amazonaws.com.