我成功地通过本地和互联网从 PC 连接到我的 Ubuntu 机器。然而，我的 Mac 却没有成功。我按照 SSH 密钥生成和配置的所有步骤操作，并尝试通过本地和互联网进行 ssh，但无论我如何尝试，我都会收到相同的错误消息 权限被拒绝。（公钥）
MacBook-Pro:~ mbp$ ssh -vT [email protected]
OpenSSH_5.9p1, OpenSSL 0.9.8r 8 Feb 2011
debug1: Reading configuration data /etc/ssh_config
debug1: /etc/ssh_config line 20: Applying options for *
debug1: Connecting to xxx.xxx.xxx.xxx [xxx.xxx.xxx.xxx] port 22.
debug1: Connection established.
debug1: identity file /Users/mbp/.ssh/id_rsa type 1
debug1: identity file /Users/mbp/.ssh/id_rsa-cert type -1
debug1: identity file /Users/mbp/.ssh/id_dsa type -1
debug1: identity file /Users/mbp/.ssh/id_dsa-cert type -1
debug1: Remote protocol version 2.0, remote software version OpenSSH_6.0p1 Debian-3ubuntu1
debug1: match: OpenSSH_6.0p1 Debian-3ubuntu1 pat OpenSSH*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_5.9
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 xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx
The authenticity of host 'xxx.xxx.xxx.xxx (xxx.xxx.xxx.xxx)' can't be established.
RSA key fingerprint is xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'xxx.xxx.xxx.xxx' (RSA) to the list of known hosts.
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/mbp/.ssh/id_rsa
debug1: Authentications that can continue: publickey
debug1: Trying private key: /Users/mbp/.ssh/id_dsa
debug1: No more authentication methods to try.
Permission denied (publickey).
答案1
确保您的密钥在 中的服务器上已授权~xxx/.ssh/authorized_keys，并确保您正确输入了服务器地址。
很有可能是上述两者之一。
答案2
您的 ~/.ssh/known_hosts 中已经有您尝试通过 ssh 进入的 ip 地址的条目，但是密钥不同。
您需要手动编辑 ~/.ssh/known_hosts 并删除包含服务器 IP 地址的行
奖金
运行以下命令自动删除有问题的密钥
（当然，将 IP 地址更改为 ubuntu 服务器的 IP）
ssh-keygen -R 192.168.1.10