CentOS6集群免密码登录

vim /etc/sysconfig/network
NETWORKING=yes
HOSTNAME=bigdata-fy1
GATEWAY=192.168.239.2

vim /etc/hosts

192.168.239.131  bigdata-fy1
192.168.239.132  bigdata-fy2
192.168.239.133  bigdata-fy3

设置免密码登录

bigdata-fy1

首先配置bigdata-fy1节点的本机免密码登录

ssh-keygen -t rsa
cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys

然后在bigdata-fy1节点上执行scp命令(执行的时候需要输入对应节点的密码)

scp ~/.ssh/authorized_keys bigdata-fy2:~/
scp ~/.ssh/authorized_keys bigdata-fy3:~/

最后在bigdata-fy2、bigdat-fy3节点上分别执行如下命令：

cat ~/authorized_keys  >>  ~/.ssh/authorized_keys

bigdata-fy2

配置bigdata-fy2节点的本机免密码登录

ssh-keygen -t rsa
cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys

然后在bigdata-fy2节点上执行scp命令

scp ~/.ssh/authorized_keys bigdata-fy1:~/
scp ~/.ssh/authorized_keys bigdata-fy3:~/

最后在bigdata-fy1、bigdata-fy3节点上分别执行如下命令：

cat ~/authorized_keys  >>  ~/.ssh/authorized_keys

bigdata-fy3

配置bigdata-fy3节点的本机免密码登录

ssh-keygen -t rsa
cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys

然后在bigdata-fy3节点上执行scp命令

scp ~/.ssh/authorized_keys bigdata-fy1:~/
scp ~/.ssh/authorized_keys bigdata-fy2:~/

最后在bigdata-fy1、bigdata-fy2节点上分别执行如下命令：

cat ~/authorized_keys  >>  ~/.ssh/authorized_keys

至此实现了CentOS6集群免密码登录

来源：CSDN

作者：zhengzaifeidelushang

链接：https://blog.csdn.net/zhengzaifeidelushang/article/details/103465389

标签

scp

keys