scp 无密码在两台主机之间拷贝文件

用scp 在两台主机之间相互之间拷贝文件，还是方面！但是需要密码！怎么样才能无密码相互之间拷贝文件呢！ 以下就实现是方法！ 在A主机上运行

#ssh-keygen -t  rsa

[root@localhost ~]# ssh-keygen -t rsa

Generating public/private rsa key pair.

Enter file in which to save the key (/root/.ssh/id_rsa):

Enter passphrase (empty for no passphrase):

Enter same passphrase again:

Your identification has been saved in /root/.ssh/id_rsa.

Your public key has been saved in /root/.ssh/id_rsa.pub.

The key fingerprint is:

61:34:37:bd:03:aa:c8:85:0d:e9:d0:b6:6e:c2:50:89 root@localhost

这样会在/root/.ssh/有两个 id_rsa ,id_rsa.pub.

将id_rsa.pub复制目标服务器上的/root/.ssh/里，并改名authorized_keys 例如 scp /root/.ssh/is_rsa.pub root@B:/root/.ssh/aut

• scp