rsync

Remove the files deleted in source and ignore the existing files
time rsync -arv --delete --ignore-existing /src /dest

Docker on Oracle Linux

https://blogs.oracle.com/virtualization/install-docker-on-oracle-linux-7-v2

https://docs.docker.com/install/linux/docker-ce/centos/#install-docker-ce-1

Docker behind proxy
https://docs.docker.com/config/daemon/systemd/

Docker DNS
https://development.robinwinslow.uk/2016/06/23/fix-docker-networking-dns/

debug3: sign_and_send_pubkey: RSA SHA256:UlFZdH9rhOy9uNXoVv5JhSIej+B5xSMRLmocrICkDBk sign_and_send_pubkey: signing failed: agent refused operation

debug3: sign_and_send_pubkey: RSA SHA256:UlFZdH9rhOy9uNXoVv5JhSIej+B5xSMRLmocrICkDBk sign_and_send_pubkey: signing failed: agent refused operation

Solution:

# ssh-add -l
# ssh-add
# ssh-add -l