详解MacOs免密登录CentOs操作步骤

ssh-keygen -t rsa -C xxxxx@qq.com

wangjianfengdeiMac:~ wangjianfeng$ cd ~/.ssh
wangjianfengdeiMac:.ssh wangjianfeng$ ls
id_rsa   id_rsa.pub known_hosts
wangjianfengdeiMac:.ssh wangjianfeng$ 

cat id_rsa.pub > authorized_keys

wangjianfengdeiMac:.ssh wangjianfeng$ ssh root@xxx.xxx.xxx.xxx
root@xxx.xxx.xxx.xxx's password: 
Last login: Sat Mar 3 15:03:08 2018 from xx.xx.xx.xxx
[root@VM_0_14_centos ~]# mkdir ~/.ssh

wangjianfengdeiMac:.ssh wangjianfeng$ scp authorized_keys root@xxx.xxx.xxx.xxx:/root/.ssh/authorized_keys
root@xxx.xxx.xxx.xxx's password: 
authorized_keys                      100% 394  73.1KB/s  00:00  

chmod 700 ~/.ssh
chmod 600 ~/.ssh/authorized_keys

tail /var/log/secure -n 20