Help with synchronizing two directories on remote servers

[symbulos - ethical services (external mailing lists)]

I apologise for the incongruous posting.

We have two webservers, a and b, both of them with rsync 
installed.

We would like to rsync one directory on one server with 
another directory on another server.

What I do is to go to one of the server (server a) as root 
using ssh, navigate to the directory, and write

rsync -avz username at serverb:directory/     ./

This is the error we get

ssh: connect to host 80.81.131.173 port 22: Connection 
refused
rsync: connection unexpectedly closed (0 bytes received so 
far) [receiver]
rsync error: error in rsync protocol data stream (code 12) 
at io.c(359)

Thanks in advance

Corrado

Corrado, Rina, John, Judith
-- 
symbulos - ethical services for your organisation
website www.symbulos.com