rsync_servers

gistfile1.txt

#!/bin/bash
backend_list=/usr/local/backends.list

cat $backend_list | while read backend;
  do
 	  rsync -avz /my/file/location/file.txt root@$backend:/my/servers/location/file.txx
  done

gistfile2.txt

1. Create id_rsa.pub key on server with file edited if you don't have one.
  ssh-keygen -t rsa
  (type enter to all questions)

2. Copy id_rsa.pub file to servers
  ssh-copy-id root@remoteserverip (1.1.1.1, 2.2.2.2, 3.3.3.3, etc). Do it with each single server.
  Type yes and enter when is required.

3. create the file on your current server with the file edited
  nano /usr/local/backends.list or vim /usr/local/backends.list or vi /usr/local/backends.list
  
  - Add youre remote server IP's, line by line.
  8.8.8.8
  4.4.4.4
  1.1.1.1
  etc
  
4. Create the sync script.

  nano sync.sh or vim sync.sh or vi sync.sh
  
  - Copy the code aboive.
  
5. Give exec. permissions to sync file

  chmod +x sync.sh
  
6. Exec script.

  sh sync.sh