Install rsync
For Ubuntu or Debian
# apt-get install rsync
For SUSE or Fedora# yum install rsync
rsync without prompting for password:
Assuming the file server is ServerF and backup server is ServerB
Genarate the public key in ServerF
$ ssh-keygen
$ Enter passphrase (empty for no passphrase):
$ Enter same passphrase again:
The public key will be generated and stored in
~/.ssh/id_rsa.pub
Copy public key to remote host
ssh-copy-id -i ~/.ssh/id_rsa.pub 192.168.1.100
Or
ssh-copy-id -i ~/.ssh/id_rsa.pub "root@192.168.1.100" -p123
Or
Open id_rsa.pub, copy the content
Login to ServerB using the same user in the rsync command
In ServerB, append the contents to ~/.ssh/authorized_keys. Create the file if not exist. Make sure the file mode is 700.
Is it possible to run ssh-copy-id on port other than 22?
