将ssh公钥添加到服务器

我正在尝试将id_rsa.pub推送到服务器，以便可以ssh进入服务器。

我运行了以下命令，

cat ~/.ssh/id_rsa.pub | ssh -v -p 12345 [email protected] 'cat >> ~/.ssh/authorized_keys'

它返回以下调试信息：

debug1: Reading configuration data /etc/ssh_config
debug1: /etc/ssh_config line 20: Applying options for *
debug1: Connecting to 123.45.67.8 [123.45.67.8] port 12345.
debug1: Connection established.
debug1: identity file /Users/myname/.ssh/id_rsa type 1
debug1: identity file /Users/myname/.ssh/id_rsa-cert type -1
debug1: identity file /Users/myname/.ssh/id_dsa type -1
debug1: identity file /Users/myname/.ssh/id_dsa-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_6.2
debug1: Remote protocol version 2.0, remote software version OpenSSH_5.9p1 Debian-5ubuntu1.4
debug1: match: OpenSSH_5.9p1 Debian-5ubuntu1.4 pat OpenSSH_5*
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: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP
debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY
debug1: Server host key: RSA [some server host key]
debug1: Host '[123.45.67.8]:12345' is known and matches the RSA host key.
debug1: Found key in /Users/myname/.ssh/known_hosts:6
debug1: ssh_rsa_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
debug1: Next authentication method: publickey
debug1: Offering RSA public key: /Users/myname/.ssh/github_rsa
debug1: Authentications that can continue: publickey
debug1: Offering RSA public key: /Users/myname/.ssh/id_rsa
debug1: Authentications that can continue: publickey
debug1: Trying private key: /Users/myname/.ssh/id_dsa
debug1: No more authentication methods to try.
Permission denied (publickey).

我不知道是什么问题。有人可以帮我吗？