如何将文件从AWS服务器传输到AWS服务器位于堡垒服务器之后的本地计算机

Question

How to transfer files from AWS server to local machine

Following is the way all the machines are located

AWS machine -> Bastion server -> Local machine

I have copied the files from AWS machine to Bastion server and Bastion server to local machine with SCP command

Following are the two steps I have done

1. ssh into bastion server Copied file from AWS instance to Bastion server

scp user@ipaddress:~/test1.txt ./

2. From my local machine, I have executed the following command

scp user@bastion:~/test1.txt ./

I would like to automate with a single script which needs to be triggered from my local machine for copying files from AWS instance to local machine

Answer 1

There is no need to copy files to the Bastion server. In fact, from a security perspective, extremely little should be stored on a Bastion server.

Instead, there are two methods you can use to directly connect to the "AWS machine" via the Bastion.

• Proxy Jump
• Port Forwarding

See:

• Using ProxyJump with SSH and SCP
• How to scp with a second remote host
• mperdikeas.github.io/networking.html.files/scp-a-file-through-jump-host.html
• Using SCP to transfer files to a private EC2 instance through a Bastion Host