CMD连接服务器命令（47.102.144.221 为服务器 IP）
ssh root@47.102.144.221
文件上传（scp 后面参数为本地文件地址 ， 47.102.144.221 为服务器 IP， 冒号后面指 将文件上传到服务器哪个目录下）
scp D:index.txt root@47.102.144.221:/server/tmp
如何要从服务器下载文件 还是使用scp命令如下：
scp root@47.102.144.221:/server/tmp/index.txt D:
如下图：
如果连接 ssh 出现如下提示：
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY! Someone could be eavesdropping on you right now (man-in-the-middle attack)! It is also possible that a host key has just been changed. The fingerprint for the ECDSA key sent by the remote host is SHA256:AGHOfHIMAAhNrmTq6XsWnKxbNZco4UiovRyG50CN+Wk. Please contact your system administrator. Add correct host key in C:\Users\13160/.ssh/known_hosts to get rid of this message. Offending ECDSA key in C:\Users\13160/.ssh/known_hosts:2 ECDSA host key for 47.102.144.221 has changed and you have requested strict checking. Host key verification failed.
执行 ssh-keygen -R 47.102.144.221 删除本地密钥即可
