ssh登录远程主机报错：Someone could be eavesdropping on you right now (man-in-the-middle attack)!
@ WARNING: REMOTE HOST IDENTIFICATION HAS CHAN...
Error: This command has to be run with superuser privileges (under the root user on most systems).此命令必须以超级用户权限（在大多数系统上以root用户权限）运行。
Error: This command has to be run with superus...
