If you liked those 2 SSH articles, you perhaps you want to set up your own SSH server at home. But there ist just a Windows installed? No worries! We use Cygwin (Cygwin is a Linux-like environment for Windows).
You can do the installation automaticly, if you use the the package from http://sshwindows.sourceforge.net, or you can install Cygwin manually.
This is just a quick howto install and configure SSHd for Cygwin!
Go to http://www.cygwin.com and download the Setup.exe. Select "openssh" from the "Net" selection and all the rest you want to install. After the installation start Cygwin and enter "ssh-host-config" to configure SSHd.
An example output:
Generating /etc/ssh_config file
Privilege separation is set to yes by default since OpenSSH 3.3.
However, this requires a non-privileged account called ‘sshd’.
For more info on privilege separation read /usr/share/doc/openssh/README.privsep
Should privilege separation be used? (yes/no) no
Generating /etc/sshd_config file
Warning: The following functions require administrator privileges!
Do you want to install sshd as service?
(Say "no" if it’s already installed as service) (yes/no) yes
Which value should the environment variable CYGWIN have when
sshd starts? It’s recommended to set at least "ntsec" to be
able to change user context without password.
Default is "ntsec". CYGWIN=ntsec
The service has been installed under LocalSystem account.
To start the service, call `net start sshd’ or `cygrunsrv -S sshd’.
Host configuration finished. Have fun!
We keep this simple, so select "use privilege separation" to no. What is privilege separation?
Privilege separation, or privsep, is method in OpenSSH by which operations that require root privilege are performed by a separate privileged monitor process. Its purpose is to prevent privilege escalation by containing corruption to an unprivileged process.
This script creates a new service called "CYGWIN sshd".
Now we need to select, which users can connect our ssh server, some examples:
Add the local administrator to our passwd file:
$ mkpasswd.exe -l -u administrator >> /etc/passwd
Add all local users to our passwd file:
$ mkpasswd.exe -l >> /etc/passwd
If you want to add domain users, use mkpasswd –help to get more infos.
Now start the sshd service, enter: "sc query sshd" or use the MMC console to start Cygwin sshd.
To test it, fire up putty (connect to localhost):
login as: administrator
Last login: Tue Jan 10 18:56:43 2006 from localhost
You are successfully logged in to this server!!!