Hadoop之——cygwin+ssh及启动ssh服务失败、ssh localhost失败的解决方案，hadoopssh

Hadoop之——cygwin+ssh及启动ssh服务失败、ssh localhost失败的解决方案，hadoopssh

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在Windows2003中配置ssh服务

在vm里成功做了一个ssh服务器，以下对这个过程做个总结。

步骤一：

在vm win2k3里安装cygwin环境，虚拟机上不了外网，所以就在我的工作机上下载了一个cygwin的安装包，完整的，640M。

把这个包拷贝到虚拟机里面，完全安装，

安装的中间出现很奇怪的进度显示，如下所示。

安装了很长时间，至少有1h，完成之后，双击cygwin无法使用。在另一台虚拟机里也试着安装了一下，也是没有成功。很郁闷。

步骤二：

把我自己的工作机（winxp）上的cygwin的安装包压缩后传到vm上，1,8G

，上传之后解压到C盘。到cygwin目录下，双击Cygwin.bat，成功打开bash环境。在桌面上做了一个快捷键。如下

步骤三：

配置ssh服务器。

1）  添加环境变量CYGWIN和path。

2）  授权。

chmod +r /etc/group
chmod +r /etc/passwd
chmod +rwx /var

3）  安装sshd服务

$ ssh-host-config      # 引导SSH服务配置

*** Info: Generating /etc/ssh_host_key *** Info: Generating /etc/ssh_host_rsa_key *** Info: Generating /etc/ssh_host_dsa_key *** Info: Creating default /etc/ssh_configfile *** Info: Creating default /etc/sshd_configfile *** Info: Privilege separation is set toyes by default since OpenSSH 3.3. *** Info: However, this requires anon-privileged account called 'sshd'. *** Info: For more info on privilegeseparation read /usr/share/doc/openssh/READ ME.privsep. *** Query: Should privilege separation beused? (yes/no) yes  #输入yes *** Info: Updating /etc/sshd_config file *** Warning: The following functionsrequire administrator privileges!
*** Query: Do you want to install sshd as aservice? *** Query: (Say "no" if it isalready installed as a service) (yes/no) yes #输入yes *** Info: Note that the CYGWIN variablemust contain at least "ntsec" *** Info: for sshd to be able to changeuser context without password. *** Query: Enter the value of CYGWIN forthe daemon: [ntsec] ntsec  #输入ntsec *** Info: On Windows Server 2003, WindowsVista, and above, the *** Info: SYSTEM account cannot setuid toother users -- a capability *** Info: sshd requires.  You need to have or to create a privileged *** Info: account.  This script will help you do so. *** Info: You appear to be running Windows2003 Server or later.  On 2003 and *** Info: later systems, it's not possibleto use the LocalSystem account *** Info: for services that can change theuser id without an explicit password *** Info: (such as passwordless logins[e.g. public key authentication] via sshd). *** Info: If you want to enable thatfunctionality, it's required to create a new *** Info: account with special privileges(unless a similar account already exists). *** Info: This account is then used to runthese special servers. *** Info: Note that creating a new userrequires that the current account have *** Info: Administrator privileges itself. *** Info: No privileged account could befound. *** Info: This script plans to use'cyg_server'. *** Info: 'cyg_server' will only be used byregistered services. *** Query: Do you want to use a differentname? (yes/no) no  #输入no，不指定启动用户 *** Query: Create new privileged useraccount 'cyg_server'? (yes/no) no  #输入no，不指定启动用户 *** ERROR: There was a serious problemcreating a privileged user. *** Query: Do you want to proceed anyway?(yes/no) yes  #输入yes *** Warning: Expected privileged user'cyg_server' does not exist. *** Warning: Defaulting to 'SYSTEM' *** Info: The sshd service has beeninstalled under the LocalSystem *** Info: account (also known as SYSTEM).To start the service now, call *** Info: `net start sshd' or `cygrunsrv -Ssshd'.  Otherwise, it *** Info: will start automatically afterthe next reboot. *** Info: Host configuration finished. Havefun!

4）  Net start sshd # 启动 SSH服务

5）  注意: 使用 windows 用户本地认证

mkpasswd-l > /etc/passwd  使用windows 用户的密码
mkgroup -l > /etc/group    使用windows 用户组

6）  启动完成之后ssh Administrator@localhost提示输入密码，输入正确的密码，可以成功登陆，则ssh配置成功。

问题：

Q:安装的时候出现如下错误Error installing a service: OpenService: Win32 error 1073: 重新安装sshd服务，要先到注册表中删除对应的注册信息。 HKEY_LOCAL_MACHINE\HKEY_LOCAL_MACHINE\SYSTEM\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\sshd Q: cygrunsrv -Ssshd不能启动，报告 cygrunsrv: Error starting a service:QueryServiceStatus: Win32 error 1062:
The service has not been started. A: 很可能是/var/log的权限设置不正确。首先执行mkpasswd和 mkgroup 重新生成权限信息，再删除sshd服务，重新配置：

$ mkpasswd -l > /etc/passwd
$ mkgroup -l > /etc/group
$ cygrunsrv -R sshd
$ ssh-host-config -y
$ cygrunsrv -S sshd

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