ssh两台机器配置互相信任关系

Posted 2020-11-04

配置ssh互信操作步骤：

1.生成公钥

[[email protected] ~]# rm -rf ~/.ssh
[[email protected] ~]# ssh-keygen
[[email protected] ~]# rm -rf ~/.ssh
[[email protected] ~]# ssh-keygen

2.选择第一台作为先完善的机器

[[email protected] .ssh]# cat id_rsa.pub >> authorized_keys
将本机公钥输出到authorized_keys中

3.其他机器将id_rsa.pub发送给第一台

[[email protected] .ssh]# scp id_rsa.pub  192.168.137.251:/root/.ssh/id_rsa.pub.hadoop001

4.将其他机器的id_rsa.pub追加到authorized_keys

[[email protected] .ssh]# cat id_rsa.pub.hadoop001 >> authorized_keys

5.然后将该authorized_keys分发

[[email protected] .ssh]# scp authorized_keys 192.168.137.141:/root/.ssh/

每台机器第一次ssh跳转其他机器都需输入yes 目的 --> known_hosts
之后再登录其他机器就无需密码了。