Find the Service endpoints based on the region you are using.

EC2 Service endpoints:

https://docs.aws.amazon.com/general/latest/gr/ec2-service.html#ec2_region

EBS Service endpoints:

https://docs.aws.amazon.com/general/latest/gr/ebs-service.html#ebs_region

Test AWS API Connectivity

Log in to Sync Proxy EC2 by default.

  1. ## Please use the Service endpoints in the actual area.
  2. ssh -v -p ec2-cn-north-1.amazonaws.com.cn

3. Test network connectivity of the Sync Proxy node to AWS API - 图1

If it displays ‘Connection established’, it means the link port is normal.

If your scenario uses VPN or dedicated line instead of EIP, the resolution address will be the intranet of the same subnet.