为什么我不能用我的私钥ssh进入我的服务器？

我只是安装我的新服务器，这一次我不能使用我的私钥login。

服务器是Ubuntu的11.04。 我已经设置了以下ssh密钥目录。

root@myserv: ls -la drwx------ 2 root root 4096 Sep 23 03:40 .ssh 

在.ssh目录中，我已经完成了chmod 640 authorized_keys

这里是ssh连接的回溯：

• 在Centos 5.9中禁用SSHloginSSH，密钥login不再有效
• pipe理通配符的服务器证书
• 绕过ssh密钥文件权限检查
• 如何改变stream浪者的SSH密码方法，从密码到私钥？
• 保持跟踪SSH私钥没有评论

 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 [my.server.ip] [[my.server.ip]] port 22. debug1: Connection established. debug1: identity file /Users/john/.ssh/id_rsa type -1 debug1: identity file /Users/john/.ssh/id_rsa-cert type -1 debug1: identity file /Users/john/.ssh/id_dsa type 1 debug1: identity file /Users/john/.ssh/id_dsa-cert type -1 debug1: Remote protocol version 2.0, remote software version OpenSSH_5.8p1 Debian-1ubuntu3 debug1: match: OpenSSH_5.8p1 Debian-1ubuntu3 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 ef:b8:8f:b4:fc:a0:57:7d:ce:50:36:17:37:fa:f7:ec debug1: Host '[my.server.ip]' is known and matches the RSA host key. debug1: Found key in /Users/john/.ssh/known_hosts:2 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,password debug1: Next authentication method: publickey debug1: Trying private key: /Users/john/.ssh/id_rsa debug1: Offering RSA public key: /Users/john/.ssh/id_dsa debug1: Authentications that can continue: publickey,password debug1: Next authentication method: password root@[my.server.ip]'s password: 

更新：

我find了原因，但我还不能解释。

这是由使用rsync -chavz而不是scp上传密钥导致的，在我使用scp上传密钥之后，问题消失了。 有人可以解释吗？

后来，我试了rsync -chv ，仍然没有工作

 chmod go-w ~/ chmod 700 ~/.ssh chmod 600 ~/.ssh/authorized_keys 

 brew install ssh-copy-id