我刚刚像以前一样设置了我的新的服务器,这次我无法使用我的私钥登录。
服务器是 ubuntu 11.04。并且我已经设置了以下 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
以下是 ssh 连接回溯:
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:
我已经找到了原因,但还无法解释。
rsync -chavz
这是由于使用而不是上传密钥导致的scp
,在我scp
上传密钥后,问题就消失了。有人能解释一下吗?
后来我试了rsync -chv
,还是不行
答案1
~/.ssh 目录的权限应该是 700。
~/.ssh/authorized_keys 文件的权限应该是 600。
这是在服务器端获得适当权限的快速公式。
chmod go-w ~/
chmod 700 ~/.ssh
chmod 600 ~/.ssh/authorized_keys
移动密钥的另一种方法是使用ssh-copy-id
命令(如果可用)将密钥从您的系统复制到远程系统。它可以纠正这些权限。
答案2
我在不同的平台上遇到了同样的问题
对于使用 Mac OS X 并需要 ssh-copy-id 工具的用户...可以通过以下方式获取
brew install ssh-copy-id
这假设您是 Mac 上软件包的 HomeBrew 用户。
答案3
真正的答案是
Rsync 保留了我电脑的所有权限和系统属性,它无法在服务器上运行。
我执行之后chown root authorized_keys
,它立即开始工作。