如果集群中服务器之间没有配置SSH免密，那么SSH访问其他服务器时
[root@node01 bin]# ssh node02
The authenticity of host 'node02 (192.168.56.122)' can't be established.
ECDSA key fingerprint is SHA256:iuntlxKiV34RaCDGi7UsV/Ng2oVwWgob9yX3wL+3zzo.
ECDSA key fingerprint is MD5:50:de:e1:50:40:20:a8:13:07:33:01:66:be:e3:ca:7b.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'node02' (ECDSA) to the list of known hosts.
root@node02's password:
Last login: Thu Jun 1 12:24:03 2023 from 192.168.56.1
[root@node02 ~]#会让你输入密码，密码太过繁琐难记难写，就想配置一下SSH免密
标签：node01,--,Jun,rsa,免密,SSH,root,服务器之间,ssh From： https://www.cnblogs.com/harleyblogs/p/17448976.html