how to sync file on client and server

[Lawrence D'Oliveiro]

In message 
<bbcc1dce-1a05-46fe-879c-7d0b08a2f516 at r14g2000yqa.googlegroups.com>, nu 
wrote:

> I want to sync the file foder in different server,and I can't use ftp
> protocl.
> I try to sync files during defferent server and  not  use username and
> password to login.

Set up an SSH public/private key pair. Then run Rsync over SSH. Job done.