amazon s3 – Can you put permissions on S3 file storage? – Education Career Blog

Can you put permissions on files that are uploaded to S3?

Or if someone knows the guild/url to the file they can access it publicly?

If yes, what kind of permissions can we set?


Permissions are implemented with a key mechanism. You can make content readable for everyone (no password) or require a password. You grant upload privileges by generating a keyed URI which you can limit to a maximum bandwidth.

Amazon FAQ about access

Amazon documentation on authentication and access control

As dcaunt states, query string authentication requires an expiration date.


Not passwords, but you can create links that expire on at a certain time:


I believe you can also generate ‘passwords’ that are only valid for a certain period of time

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