How to Rsync over SSH without a password

Howto Rsync over SSH without a password.

1.  Log into the TARGET host, and generate an RSA (public and private) key pair:

   * Accept the default location for the key files (press [ENTER]).

   * Enter and confirm a pass phrase. (empty for no passphrase) (it is not a requirement)

target$ ssh-keygen -t rsa

2.  Log into the SOURCE host:

source$ touch ~/.ssh/authorized_keys

3.  Log into the SOURCE host, and get public key from TARGET:

source$ ssh target cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys

4.  Log into the TARGET host, and try to rsync:

target$ rsync -e ssh -av oracle@source:/ocfs_data/mxdell/arch/  /ocfs_data/mxdell/arch/

或

命令1：$ ssh-keygen -t rsa

命令2：$ scp /home/use/.ssh/id_isa.pub B:/home/user/.ssh/authorized_keys

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