我在我的 virtualbox 中运行 Ubuntu 服务器，并安装了 openssh-server 和 openssh-client。virtualbox的网络是Host-Only，我设置了它的IP 192.168.0.100
然后我尝试使用 SSH 连接到虚拟机
这是命令：
ssh -v slave@192.168.0.100
然后
OpenSSH_5.9p1 Debian-5ubuntu1, OpenSSL 1.0.1 14 Mar 2012
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug1: Connecting to 192.168.0.100 [192.168.0.100] port 22.
debug1: Connection established.
debug1: identity file /home/wang/.ssh/id_rsa type 1
debug1: Checking blacklist file /usr/share/ssh/blacklist.RSA-2048
debug1: Checking blacklist file /etc/ssh/blacklist.RSA-2048
debug1: identity file /home/wang/.ssh/id_rsa-cert type -1
debug1: identity file /home/wang/.ssh/id_dsa type -1
debug1: identity file /home/wang/.ssh/id_dsa-cert type -1
debug1: identity file /home/wang/.ssh/id_ecdsa type -1
debug1: identity file /home/wang/.ssh/id_ecdsa-cert type -1
debug1: Remote protocol version 2.0, remote software version OpenSSH_5.9p1 Debian-5ubuntu1
debug1: match: OpenSSH_5.9p1 Debian-5ubuntu1 pat OpenSSH*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_5.9p1 Debian-5ubuntu1
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: server->client aes128-ctr hmac-md5 none
debug1: kex: client->server aes128-ctr hmac-md5 none
debug1: sending SSH2_MSG_KEX_ECDH_INIT
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug1: Server host key: ECDSA c4:05:01:3c:6d:18:ca:e5:81:86:79:7a:03:1d:30:d2
debug1: Host '192.168.0.100' is known and matches the ECDSA host key.
debug1: Found key in /home/wang/.ssh/known_hosts:3
debug1: ssh_ecdsa_verify: signature correct
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: Roaming not allowed by server
debug1: SSH2_MSG_SERVICE_REQUEST sent
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey,password
debug1: Next authentication method: publickey
debug1: Offering RSA public key: /home/wang/.ssh/id_rsa
debug1: Authentications that can continue: publickey,password
debug1: Trying private key: /home/wang/.ssh/id_dsa
debug1: Trying private key: /home/wang/.ssh/id_ecdsa
debug1: Next authentication method: password
它告诉我输入密码，virtualbox中ssh的公钥是123456，但它不起作用，我尝试了root密码，它仍然不起作用。
slave@192.168.0.100's password:
debug1: Authentications that can continue: publickey,password
Permission denied, please try again.
slave@192.168.0.100's password:
debug1: Authentications that can continue: publickey,password
Permission denied, please try again.
slave@192.168.0.100's password:
debug1: Authentications that can continue: publickey,password
debug1: No more authentication methods to try.
Permission denied (publickey,password).
我能做些什么？请帮我。