I was ask to collect all logs from different host to a central place. I was also asked to implement this with rsync. So here is what I came up with:

Cronjob_and_Explanation

cronjob:
========

     * 1 * * * rsync -e 'ssh -v -i .ssh/log_coll_id_rsa logcol@server' -aP /var/log/mongodb/*.s server:.

### There results:
On the server called server you will see in the home directory of the ssh user you created a directory with the log files for each host 
you installed the ssh key, the script and the cron job. 

   ls ~
   host1  host2 host3

logsync

#!/bin/sh

DEST=$(echo $(grep $(echo $SSH_CONNECTION | cut -d " " -f 1) /etc/hosts) | tr -s " " | cut -d " " -f 2)
SOURCE=/var/log/mongodb/

rsync --server -logDtpre.iLsf $SOURCE ~/$DEST
# I installed this file to /usr/local/bin

ssh_authorized_keys

command="/usr/local/bin/logsync",no-agent-forwarding,no-port-forwarding,no-user-rc,no-X11-forwarding,no-pty ssh-rsa AAA...YOUR PUBLIC KEY HERE.