利用java连接Linux服务器中碰到错误：Key exchange was not finished, connection is closed.，导致服务器的连接失败，报错如下
是ssh中的key交换算法不兼容导致
修改配置文件
vi /etc/ssh/sshd_config添加如下内容
KexAlgorithms diffie-hellman-group1-sha1,diffie-hellman-group14-sha1,diffie-hellman-group-exchange-sha1,diffie-hellman-group-exchange-sha256,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group1-sha1,curve25519-sha256@libssh.org重启服务
service sshd restart来源地址：https://blog.csdn.net/weixin_45266856/article/details/129754122
