cygwin-Installing and configuring the SSH service

Cygwin Introduction:

Cygwin is a UNIX-like simulation environment that executes on a Windows platform. It is for learning unix/Linux operating environments, porting applications from UNIX to Windows, or doing some special development work, especially for embedded systems development on Windows using the GNU Toolset , very practical.

To learn about the Hadoop Distributed file system, you want to simulate a Linux environment under window for deployment.

So think of using Cygwin tools.

Let's start with a few of the issues I encountered during the installation process:

1. It is best to know that you want to install those services. According to the actual needs of their own, I once installed because of the missing OpenSSH, and later re-installed.

2. Reinstall can not be uninstalled first. Click setup.exe directly to install it,

3. The choice to download the site on the default is good http://mirrons.163.com.

4. No password is always an error when installing the SSH service

Errors such as the following: delete the. SSH directory, login with password is also unsuccessful. Tried several times, also re-installed Cygwin64 bit or invalid, finally installed Cygwin32 bit talent enough.

[Email protected] ~$  cd ~/.ssh[email protected]~/.ssh$ ssh localhost[email protected] ' s password:      2 [main] sshd 3 804 D:\SofeWare\cygwin\usr\sbin\sshd.exe: * * * fatal Error-ntcreateevent (lock): 0xc0000058connection to localhost Closed.

Note When configuring SSH, Yes/no's choice to be careful, careless will be wrong.

[email protected] ~$ ssh-host-config*** info:generating missing SSH host keysssh-keygen:generating new host Keys:r SA1 RSA DSA ECDSA ed25519*** info:creating default/etc/ssh_config file*** info:creating default/etc/sshd_config file** * Info:strictmodes is set to ' Yes ' by default.*** Info:this are the recommended setting, but it requires that the posix** * Info:permissions of the user ' s home directory, the user's ssh*** info:directory, and the user's SSH key files are TIG HT so that*** info:only the user have write permissions.*** info:on the other hand, strictmodes don ' t work well with DEFA ult*** info:windows permissions of a home directory mounted with the*** Info: ' noacl ' option, ' and ' They don ' t work at all If the home*** info:directory is on a FAT or FAT32 partition.*** query:should strictmodes being used?  (yes/no) no*** info:privilege separation is set to ' sandbox ' by default since*** info:openssh 6.1. This was unsupported by Cygwin and have to be set*** info:to ' yes ' or ' no '. * * * info:however, using privilege separation requires a non-privileged account*** info:called ' sshd '. * * * Info:  for + info on privilege separation read/usr/share/doc/openssh/readme.privsep.*** query:should privilege separation be Used? (yes/no) no*** info:updating/etc/sshd_config file*** query:do you want to install sshd as a service?*** Query: (Say "No "If it is already installed as a service" (yes/no) yes*** Query:enter The value of CYGWIN for the daemon: [] ntsec*** in Fo:on Windows Server 2003, Windows Vista, and above, the*** Info:system account cannot setuid to other users--a Capabi  lity*** info:sshd requires.  You need to has or to create a privileged*** info:account. This script would help you does so.*** Info:it ' s not possible to use the LocalSystem account for services*** Info:that can Change the user ID without a explicit password*** Info: (such as passwordless logins [e.g. public key authentication]*** Info:via sshd) When have to create the userToken from scratch.*** info:for more information on this requirement, see*** info:https://cygwin.com/cygwin-ug-net/ntsec . html#ntsec-nopasswd1*** info:if you want to enable that functionality, it's required to create*** info:a new account WI Th special privileges (unless such an account*** info:already exists). This account was then used to run these special*** info:servers.*** info:note that creating a new user requires that the Current account*** info:have Administrator privileges itself.*** info:no privileged account could being found.*** Info:thi s script plans to use ' cyg_server '. * * * Info: ' cyg_server ' is only being used by registered services.*** Query:do you want To use a different name? (yes/no) no*** query:create new Privileged user account ' Lyx\cyg_server ' (Cygwin name: ' Cyg_server ')? (yes/no) no*** Error:there was a serious problem creating a privileged user.*** query:do do want to proceed anyway? (yes/no) no[email protected] ~$ ssh-host-config*** info:generatinG Missing SSH host keys*** query:overwrite existing/etc/ssh_config file? (yes/no) yes*** info:creating default/etc/ssh_config file*** query:overwrite existing/etc/sshd_config file? (yes/no) yes*** info:creating default/etc/sshd_config file*** info:strictmodes is set to ' Yes ' by default.*** Info:thi  S is the recommended setting, but it requires that the posix*** info:permissions of the user's home directory, the user ' s . ssh*** info:directory, and the user ' s SSH key files is tight so that*** info:only the user have write permissions.***  Info:on the other hand, strictmodes don ' t work well with default*** info:windows permissions of a home directory mounted With the*** Info: ' noacl ' option, and they-t work at all if the home*** info:directory are on a FAT or FAT32 partitio n.*** query:should strictmodes be used?  (yes/no) yes*** info:privilege separation is set to ' sandbox ' by default since*** info:openssh 6.1. This was unsupported by Cygwin and have to be set*** info:to ' Yes ' or ' no '. * * * info:however, using privilege separation requires a non-privileged account*** info:called ' sshd '. * * * Info:for More info on privilege separation read/usr/share/doc/openssh/readme.privsep.*** query:should privilege Separat Ion be used? (yes/no) no*** info:updating/etc/sshd_config file*** query:do you want to install sshd as a service?*** Query: (Say "No "If it is already installed as a service" (yes/no) yes*** Query:enter The value of CYGWIN for the daemon: [] netsec*** I Nfo:on Windows Server 2003, Windows Vista, and above, the*** Info:system account cannot setuid to other users--a capab  ility*** info:sshd requires.  You need to has or to create a privileged*** info:account. This script would help you does so.*** Info:it ' s not possible to use the LocalSystem account for services*** Info:that can Change the user ID without a explicit password*** Info: (such as passwordless logins [e.g. public key authentication]*** Info:via sshd) when have to create thE User token from scratch.*** info:for more information on this requirement, see*** Info:https://cygwin.com/cygwin-ug-ne t/ntsec.html#ntsec-nopasswd1*** info:if you want to enable that functionality, it's required to create*** info:a new ACC Ount with special privileges (unless such an account*** info:already exists). This account was then used to run these special*** info:servers.*** info:note that creating a new user requires that the Current account*** info:have Administrator privileges itself.*** info:no privileged account could being found.*** Info:thi s script plans to use ' cyg_server '. * * * Info: ' cyg_server ' is only being used by registered services.*** Query:do you want To use a different name?
(yes/no) yes*** query:enter The new user name:l*** query:reenter:l*** query:create new Privileged user account ' lyx\l Yx ' (Cygwin name: ' L ')?
 (yes/no) yes*** info:please Enter a password for new user LyX. sure*** info:that This password matches the password rules given on your system.*** info:entering no password Would exit the configuration.*** Query:please enter the password:*** query:reenter:*** warning:creating the user ' L ' FAI  Led! Reason:??????????????????????????? NET helpmsg 2253????????????? Error:there was a serious problem creating a privileged user.*** query:do do want to proceed anyway? (yes/no) yes*** warning:expected Privileged user ' lyx ' does not exist.*** warning:defaulting to ' SYSTEM ' * * * info:the SS HD Service has been installed under the localsystem*** Info:account (also known as SYSTEM).  To start the service now, call*** Info: ' net start sshd ' or ' cygrunsrv-s sshd '.  Otherwise, it*** Info:will start automatically after the next reboot.*** warning:host configuration exited with 1 errors or warnings!*** warning:make Sure, all problems reported is fixed,*** Warning:then RE-run Ssh-host-config. [email protected] ~$ ssh localhostthe authenticity of host ' localhost (:: 1) ' can ' t be established. ECDSA key fingerprint is sha256:5/i9vvxbbfiqhzlrekd9uqpphkz7nc+9znwcwln+qhk. Is you sure want to continue connecting (yes/no)? yeswarning:permanently added ' localhost ' (ECDSA) to the list of known hosts. [email protected] ' s password:[email protected] ~$ whoadministrator pty1 2015-07-24 09:39 (:: 1)

Installation materials:

There are a lot of online installation materials. I will not dwell on it.

installing through Cygwin on Windows systems hadoop:http://my.oschina.net/u/570654/blog/112757According to this installment Cygwin can.

cygwin-Installing and configuring the SSH service