[root@pengx p100]# ssh pengx ***.***.***.***
The authenticity of host 'pengx (127.0.0.1)' can't be established.
RSA key fingerprint is
***********************************
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'pengx' (RSA) to the list of known hosts.
root@pengx's password:
Permission denied, please try again.
root@pengx's password:
ssh pengx ***.***.***.***
pengx是你的机器名吗?
你用这样的命令试试看ssh -l root(这里表示用户名) ip
The authenticity of host 'pengx (127.0.0.1)' can't be established.
你在连接127。0。0。1?这样的话两边root密码不同自然是不能够连接上的