I read an article that SSH Daemon Service. But I want to run on Centos6.4. So I setup from official centos image with almost same istruction. Then I connect to centos sshd server, but connection is closed immediately. Here is the message. ssh root@localhost -p 49164 The authenticity of host '[localhost]:49164 ([127.0.0.1]:49164)' can't be established. RSA key fingerprint is 88:71:89:e5:30:91:78:5c