CentOS免密登录设置

来源：互联网发布：淘宝退货官方寄快递编辑：程序博客网时间：2024/05/16 10:16

需求：学习hadoop 单机免密登录shell

ssh-keygen -t dsa -P '' -f ~/.ssh/id_dsa

会在/hadoop/home下生成

id_dsa id_dsa.pub 这连个文件

然后进行

[hadoop@SOC-15 ~]$ cat ~/.ssh/id_dsa.pub >> ~/.ssh/authorized_keys[hadoop@SOC-15 ~]$ chmod 700 ~/.ssh[hadoop@SOC-15 ~]$ chmod 600 ~/.ssh/authorized_keys [hadoop@SOC-15 ~]$ ssh localhostThe authenticity of host 'localhost (::1)' can't be established.RSA key fingerprint is a0:fc:1d:9b:4d:fe:7d:a8:4d:5b:8f:25:90:b7:61:94.Are you sure you want to continue connecting (yes/no)? yesWarning: Permanently added 'localhost' (RSA) to the list of known hosts.Last login: Fri Nov 10 09:55:14 2017 from localhost

登录成功

分发免登录到其他remote服务器

 cat ~/.ssh/id_dsa.pub | ssh hadoop@master.hadoop 'cat - >> ~/.ssh/authorized_keys'

https://www.cnblogs.com/mophee/archive/2013/04/21/3033859.html

阅读全文

0 0