Directory copy from Primary Server to Secondary Server Automatically using rsync

Network Topology

Tasks

** SSH Primary to Secondary Server without password

** Install rsync in both server

** Automate a directory to sync with Secondary server

SSH Primary to Secondary Server without password

Login to Primary Server and check the IP address

Login to Secondary Server and check the IP address

From Primary Server create the SSH Key with "ssh-keygen". Please do not provide any password to make it password less.

Create .ssh directory in Secondary Server with below command.

         # mkdir /root/.ssh/

Send the "id_rsa.pub" public key from Primary Server to Secondary Server

       # scp /root/.ssh/id_rsa.pub root@192.168.0.3:/root/.ssh

On Secondary Server create a file name "authorized_keys" and put the content of "id_rsa.pub" on that file

      # touch /root/.ssh/authorized_keys

      # cat /root/.ssh/id_rsa.pub >> /root/.ssh/authorized_keys

Set permissions on Secondary Server

      #chmod -R 700 /root/.ssh/

      #chmod -R 640 /root/.ssh/authorized_keys

Now try to login from Primary Server to Secondary server without password

     # ssh 192.168.0.3

Install rsync in both server

On both server run following command to install rsync

     # apt-get install rsync -y

Automate a directory to sync with Secondary server

Let say I want to copy “/home/” directory from Primary Server to Secondary server automatically every day at 1 AM.

Add the line below in /etc/crontab file

00 1 * * *      root              rsync -avzhe ssh /home/ 192.168.0.3:/home/

Now restart cron Service

service cron restart

Enjoy!