服务器发送了一个意外的数据包。 received: 3, expected: 20

[root@node02 local]# vim /etc/ssh/sshd_config  #最后一行添加
KexAlgorithms curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group14-sha1
[root@node02 local]# systemctl reload sshd