Well, you still need connection to AWS services, the software requires internet connection. If that is not an option you can try adding self-hosted Openstack or S3-compatible solution like Minio to your network environment and use it as a cloud storage.

, can you please tell a bit more about your use case?
Thanks

Hello, thank you for your reply. I understand that I need internet access to AWS S3, thank you for your help.You recommend Minio, but on that way, maybe I think I can use AWS storage gateway instead,
is it correct? Sorry for basic question.


Hello. We want to back up offline windows servers on private network which is on premise server to AWS S3. But I think this case could be difficult.

Sorry for my broken English.

Thanks for providing these details. In that case Storage Gateway should actually help.
We have a handy article on how to configure it: https://kb.cloudberrylab.com/cloud-vendors/amazon-aws/configuring-storage-gateway-for-backup

, what connectivity between AWS S3 and your on-prem server do you have?

OK, thank you for the detail.


I'm sorry, on-prem server is on the private network that can't use internet and it's out of VPC.
Therefore, I think there is no connection between S3 and on-prem server in the moment and we are looking for how I can connect to. Is this answer correct?

I was thinking to connect AWS S3 and on prem server using VPC PrivateLink, but I think I can't because VPC PrivateLink is only for the servers in VPC. This time is OUT OF VPC, so I think it is very difficult.
Thank you for your help.

, take a look at these options here:
1. https://docs.aws.amazon.com/en_pv/vpn/latest/s2svpn/how_it_works.html

2. Once you have connectivity in place between your VPC and AWS, you can work with S3 by using VPC S3 endpoint.
https://www.cloudberrylab.com/resources/blog/creating-and-accessing-amazon-s3-vpc-endpoint/

In this case, the traffic will flow from your VPC to S3 via the connection that you configure on step #1.

Thanks