更新
今天再次遇到这个问题 - 当我的工作笔记本电脑被带回家时 - 似乎 Window 域可能是根本问题。在这里找到解决方案：
原始问题
过去几个月我的 Git 工作正常，今天早上我尝试推送，并要求我确认 IP 的 RSA 证书 - 我仔细检查了 github IP，没关系，所以我添加了证书。但我得到：
Permission denied (publickey).
fatal: The remote end hung up unexpectedly
当我尝试推或拉时。
我阅读了 Git - Permission denied (publickey)并尝试再次将我的密钥添加到 Github，但有人告诉我：
Key is already in use
跑步
ssh -vT git@github.com
回报：
OpenSSH_4.6p1, OpenSSL 0.9.8e 23 Feb 2007
debug1: Connecting to github.com [207.97.227.239] port 22.
debug1: Connection established.
debug1: identity file /p/.ssh/identity type -1
debug1: identity file /p/.ssh/id_rsa type -1
debug1: identity file /p/.ssh/id_dsa type -1
debug1: Remote protocol version 2.0, remote software version OpenSSH_5.1p1 Debia
n-5github2
debug1: match: OpenSSH_5.1p1 Debian-5github2 pat OpenSSH*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_4.6
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: server->client aes128-cbc hmac-md5 none
debug1: kex: client->server aes128-cbc 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: Host 'github.com' is known and matches the RSA host key.
debug1: Found key in /p/.ssh/known_hosts:1
debug1: ssh_rsa_verify: signature correct
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: SSH2_MSG_SERVICE_REQUEST sent
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey
debug1: Next authentication method: publickey
debug1: Trying private key: /p/.ssh/identity
debug1: Trying private key: /p/.ssh/id_rsa
debug1: Trying private key: /p/.ssh/id_dsa
debug1: No more authentication methods to try.
Permission denied (publickey).
谁能指出我正确的方向？