I want to protect my s3 object from Public access and the object can only be accessed from my origin. How can I do that? I tried by setting Objects Access control to Private, then Set in the buckets CORS settings, Allowed origin to my origin with the method GET but I'm getting an error while accessing the object.
How do I set the bucket to access the bucket objects only from my origin?
It sounds like you might be asking how to make an Amazon S3 bucket accessible to a specific Amazon CloudFront distribution.
From Restricting Access to Amazon S3 Content by Using an Origin Access Identity - Amazon CloudFront:
To restrict access to content that you serve from Amazon S3 buckets, follow these steps:
Create a special CloudFront user called an origin access identity (OAI) and associate it with your distribution.
Configure your S3 bucket permissions so that CloudFront can use the OAI to access the files in your bucket and serve them to your users. Make sure that users can’t use a direct URL to the S3 bucket to access a file there.
After you take these steps, users can only access your files through CloudFront, not directly from the S3 bucket.
Related
I am trying to use S3 bucket to save pdf and image files uploaded by user for my website. I am accessing the S3 data using cloudflare and used setup as mentioned in S3 with Cloudflare disallow direct access and How to serve files from S3 via CloudFlare
But if I make the bucket not public then I m not able to access the data. Is there any way to access the S3 data through cloudflare without making the S3 bucket public ?
You can restrict access to your Amazon S3 bucket and objects to only the Cloudflare IP addresses.
Here's how to restrict S3 access to certain IP adresses using a bucket policy.
I have hosted my static files on Amazon bucket and configured them in settings but still they are not loading when I run the server and throwing the error as shown in the image:
Objects in Amazon S3 are private by default.
If you wish for your objects to be accessible, you will need to use one of these methods:
Attach a Bucket Policy to your Amazon S3 bucket that permits public access. See: Bucket Policy Examples - Amazon S3, or
Assign public-read permissions to the individual objects, or
Have your application generate an Amazon S3 pre-signed URLs, which grants time-limited access to an object.
The screenshot you provided shows URLs that in the format of a pre-signed URL. This is either because your application generated the pre-signed URL, or because you copied a link from within the Amazon S3 management console. These URLs expire after a given time period, which is ideal for security if you are providing temporary access to a private object.
However, if your intention is that these files should be accessible to anyone at any time, you should attach a Bucket Policy to the Amazon S3 bucket.
See also: Hosting a static website on Amazon S3
How do you restrict bucket access of an endpoint?
Here's my password protected CloudFront page:
d2hyhnit1e4g1k.cloudfront.net where the protection is created through a Lambda function.
I want to restrict access to my endpoint so I can't access the endpoint through http://data-flood.s3-website-us-east-1.amazonaws.com only through CloudFront.
It's easy: Simply do not grant public access to the bucket.
By default, Amazon S3 buckets are private. Therefore, nobody should be able to access the bucket.
But, you ask, how can CloudFront access the bucket to serve content? The answer is Restricting Access to Amazon S3 Content by Using an Origin Access Identity - Amazon CloudFront. That way, CloudFront can access the bucket, but nobody else can access it.
my cloud front distribution's origin is my S3 bucket . to access a S3 bucket object we put a url in such as like "cloudfront_domainname/object_name" it should be show the object if the object is public . but in my case the cloud front URL in the URL bar redirects a S3 URL, the data retrieved from S3 not from cloud front distribution. why it cause ?
You can optionally secure the content in your Amazon S3 bucket so users can access it through CloudFront but cannot access it directly by using Amazon S3 URLs. This prevents anyone from bypassing CloudFront and using the Amazon S3 URL to get content that you want to restrict access to. This step isn't required to use signed URLs, but we recommend it.
To require that users access your content through CloudFront URLs, you perform the following tasks:
Create a special CloudFront user called an origin access identity.
Give the origin access identity permission to read the objects in your bucket.
Remove permission for anyone else to use Amazon S3 URLs to read the objects.
Please see documentation here
I've configured an S3 bucket with CloudFront and using alternate domain name provided by CludFront (I setup the domain alias images.mydomain.com at my DNS zone file).
At my DNS host the CNAME I'm pointing to xyz.cloudfront.net. Both my s3 bucket name and CNAME domain alias are images.mydomain.com.
I want world to access my images at images.mydomain.com/image.jpg and this is working perfectly.
The problem is the same resource is directly accessible by the world via below two URLs too and I don't want this to happen. I want only images.mydomain.com/image.jpg to work for world and not the below two.
images.mydomain.com.s3.amazonaws.com/image.jpg
s3.amazonaws.com/images.mydomain.com/image.jpg
How do I achieve this? please help.
http://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/private-content-restricting-access-to-s3.html
You restrict access to Amazon S3 content by creating an origin access
identity, which is a special CloudFront user. You change Amazon S3
permissions to give the origin access identity permission to access
your objects, and to remove permissions from everyone else. When your
users access your Amazon S3 objects using CloudFront URLs, the
CloudFront origin access identity gets the objects on your users'
behalf. If your users try to access objects using Amazon S3 URLs,
they're denied access. The origin access identity has permission to
access objects in your Amazon S3 bucket, but users don't.