ssh known hosts 问题 解决 先联系管理员或自己检查没有遇到中间人攻击，再更新 known hosts 1 2 # ssh-keygen -R <host_ip> ssh-keygen -R 113.45.235.142 再重新连接，选 yes 更新 known hosts 1 2 # ssh -p <port> <username>@<host_ip> ssh -p 22 dvdbr3o@113.45.235.142
