3步实现ssh login不用密码：
1 ssh-keygen (Create public and private keys)
2 ssh-copy-id -i ~/.ssh/id_rsa.pub remote-host (Copy the public key to remote-host)
3 ssh remote-host (不用密码了)
linux命令笔记,布布扣,bubuko.com
linux命令笔记
原文：http://www.cnblogs.com/busor/p/3758409.html
