Sync files without a password by executing rsync via SSH

1. BySSHExecutionrsync(requires password)

Perform rsyncwith an SSH account (requiring a password) to mirror files to the remote server synchronously.
The following example synchronizes the local/home/ramesh to the remote directory/backup/ramesh (server address 192.168.200.10).
When you do the following, the server prompts the user to log on with a password.

RSYNC-AVZ-E ssh/home/ramesh/[Email protected]:/backup/ramesh/

2. Using Ssh-keygen to generate keys

Now let's set up ssh so that you don't need a password to perform an SSH operation, and use Ssh-keygen to generate the public and private keys locally.

$ ssh-keygenenter Passphrase (empty for no passphrase): Enter same passphrase again:

Tip: When prompted to enter a password, just enter two times the ENTER key, not the password character.

3. Copy the public key to the remote host using Ssh-copy-id

Executes the ssh-copy-id and copies the public key generated by the Ssh-keygen to the remote host.

Ssh-copy-id-i ~/.ssh/id_rsa.pub 192.168.200.10

Tip: When you do this, you will be prompted for a remote host account and password, and the public key will be automatically copied to the remote directory.

4. No password to execute via SSHrsync

Now you can ssh to a remote host without the need for a password

SSH 192.168.200.10

To perform Rsyncagain, you should not be prompted to enter the password now.

RSYNC-AVZ-E ssh/home/ramesh/[Email protected]:/backup/ramesh/

Sync files without a password by executing rsync via SSH