Transfers files between two hosts without a password

Implement file transfer between two machines without a password-Linux Enterprise Application-Linux server application information. The following is a detailed description. Assume there are two linux machines, linux1 and linux2. If you want to copy a machine from linux1 to linux2, you do not need to enter a password, or do this in the ctontab.

1. Install SSH
2. Create two users, user1 on linux1 and user2 on linux2.
3. On linux2, login as user2. do
Ssh-keygen-P ""-trsa1-f ~ /. Ssh/identity
4. Copy key file to linux1
Scp/home/user2/. ssh/identity. pub user1 @ linux1:/home/user1/. ssh/authorized_keys
5. Change file permission
Chmod 600/home/user2/. ssh/authorized_keys
6. change ssh config file:/etc/ssh/ssh_config
Ad
Host *
ForwardX11 yes
IdentityFile ~ /. Ssh/identity
Protocol 1
7. Restart sshd
8. login to linux1 as user1.
9. Change file permission
Chmod 600/home/user1/. ssh/identity
10. Restart sshd
Now, you can ssh or secure copy filles by using user1 from linux1 to linux2 without prompt