Hadoop：无密码SSH错误

Question

我试图为Hadoop 2.6.0启用无密码ssh（通过Windows 2008 Server上的Cygwin）。我尝试的方法如下：

ssh-keygen -t dsa -P '' -f ~/.ssh/id_dsa 
cat ~/.ssh/id_dsa.pub >> ~/.ssh/authorized_keys 

我也尝试添加以下的事情在一些问题提到的SO到ssh_config文件：

PubkeyAuthentication yes 
AuthorizedKeysFile .ssh/authorized_keys 
PermitRootLogin yes 

不过，我不能够通过SSH进入本地主机。的ssh -v localhost输出如下：

OpenSSH_6.8p1, OpenSSL 1.0.2a 19 Mar 2015 
debug1: Reading configuration data /etc/ssh_config 
debug1: Connecting to localhost [127.0.0.1] port 22. 
debug1: Connection established. 
debug1: identity file /home/MP30589/.ssh/id_rsa type 1 
debug1: key_load_public: No such file or directory 
debug1: identity file /home/MP30589/.ssh/id_rsa-cert type -1 
debug1: identity file /home/MP30589/.ssh/id_dsa type 2 
debug1: key_load_public: No such file or directory 
debug1: identity file /home/MP30589/.ssh/id_dsa-cert type -1 
debug1: key_load_public: No such file or directory 
debug1: identity file /home/MP30589/.ssh/id_ecdsa type -1 
debug1: key_load_public: No such file or directory 
debug1: identity file /home/MP30589/.ssh/id_ecdsa-cert type -1 
debug1: key_load_public: No such file or directory 
debug1: identity file /home/MP30589/.ssh/id_ed25519 type -1 
debug1: key_load_public: No such file or directory 
debug1: identity file /home/MP30589/.ssh/id_ed25519-cert type -1 
debug1: Enabling compatibility mode for protocol 2.0 
debug1: Local version string SSH-2.0-OpenSSH_6.8 
debug1: Remote protocol version 2.0, remote software version OpenSSH_6.8 
debug1: match: OpenSSH_6.8 pat OpenSSH* compat 0x04000000 
debug1: SSH2_MSG_KEXINIT sent 
debug1: SSH2_MSG_KEXINIT received 
debug1: kex: server->client aes128-ctr umac-64-etm@openssh.com none 
debug1: kex: client->server aes128-ctr umac-64-etm@openssh.com none 
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY 
debug1: Server host key: ecdsa-sha2-nistp256 SHA256:l/78VMLSVdtD9SMx46+m4NZt4Kmd1x8I038v9ozQYbM 
debug1: Host 'localhost' is known and matches the ECDSA host key. 
debug1: Found key in /home/MP30589/.ssh/known_hosts:1 
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,keyboard-interactive 
debug1: Next authentication method: publickey 
debug1: Offering RSA public key: /home/MP30589/.ssh/id_rsa 
debug1: Authentications that can continue: publickey,password,keyboard-interactive 
debug1: Offering DSA public key: /home/MP30589/.ssh/id_dsa 
debug1: Authentications that can continue: publickey,password,keyboard-interactive 
debug1: Trying private key: /home/MP30589/.ssh/id_ecdsa 
debug1: Trying private key: /home/MP30589/.ssh/id_ed25519 
debug1: Next authentication method: keyboard-interactive 
debug1: Authentications that can continue: publickey,password,keyboard-interactive 
debug1: Next authentication method: password 
MP30589@localhost's password: 

任何人都可以请帮我在这里？提前致谢！

Answer 1

后，您所做的更改SSH服务器的配置文件，你必须强制配置重新装载有

sudo /etc/init.d/ssh reload 

或者重新启动系统。