ssh无密登录

centos6

查看是否安装openssh和rsync

rpm -qa | grep openssh
rpm -qa | grep rsync

安装

sudo apt-get install openssh-server

生成无密密钥对

ssh-keygen -t rsa -P '' -f ~/.ssh/id_rsa
# -t rsa：加密类型，可以为'rsa'和'dsa'

传入密钥对

ssh-copy-id root@192.168.0.1