, this machine win10 an existing virtual machine installed centos7, function of the machine and the virtual ping each other, virtual machine and the machine is opened port 22 and SSH services, this machine has the SSH client and server, the machine with the virtual machine firewalls are closed, but the use of the machine of CMD SSH command is not on the virtual machine, always prompt is rejected, according to the online prompts a modification on the allocation of the sshd_config, permitrootlogin yes, passwordAuthentication yes, permitEmptyPasswords no, still no effect,