How to Install Cygwin 2.7 on Windows........

Step by Step Installation of Cygwin on Windows

 Hi guys,

           

         Here I am writing the steps for installing the cygwin on windows follow the steps :

       1. Download setup.exe from www.cygwin.com.

       2. Run the setup.exe of cygwin.

      

       
        3. Click  on next button

         

    

      4. Select the option install form local directory and click next button.

       

    

       5. Select the path where you want to install.

         

        6. select the directory where the setup should look for the downloaded files.

       

  
       

           7.   Here   click on the   next button and cross  ssh option.

            

            

            8.  And  then  click  next  button

                                         

               9. check the box and click next button.

                    

               10.  check the box and again press the finish button.

                           

                   11.  Now we need to set the Enviroment variable.

                                        (i)      Right click My Computer, Properties, Advanced, Environment Variables
                   Click the "New" button to add a new entry to System variables:
                   variable name is CYGWIN
                   variable value is ntsec tty

                   

              (ii)  Right click My Computer, Properties, Advanced, Environment Variables

                   Select the Path variable and click the "Edit" button:
                   append  ;c:\cygwin\bin   to the end of the existing variable string.

                  With recent releases of cygwin, there are many permission problems. 

                  Execute  these 6 commands on cygwin terminal:

                  chmod +r  /etc/passwd
                  chmod u+w /etc/passwd
                  chmod +r  /etc/group
                  chmod u+w /etc/group
                  chmod  755  /var
                  touch /var/log/sshd.log
                  chmod 664 /var/log/sshd.log

                  

          

                 12.   ssh-host-config    (manuall answer Yes to questions except)
                         If the script says "This script plans to use cyg_server, Do you want to  use to different   name?  Answer no.

                

                 13.        Reboot the computer  and run the this cyglsa-config
                       
                              

                14.  While you are still in the (black) cygwin screen, start the sshd service, type
                        net start sshd
                         or
                        cygrunsrv  --start  sshd

                        If the service fails to start, try (thanks to Ross Beveridge of HP for this tip)
                        chown system /etc/ssh*
                        chown system /var/empty  or chown sshd_server /var/empty
                        net start sshd
                        If you get "ssh-exchange-identification: Connectiion closed by remote host" error.
                        edit the file  /etc/hosts.allow and add these two lines
                        ALL: 127.0.0.1/32 : allow
                       ALL: [::1]/128: allow


                        (i) Make sure every Windows user has a password set, if not,
                         go to  Control Panel....User Accounts and create a password.
                       (ii) Make sure every Windows user has done the following at least once:
                             Login in as the Windows user, pop a console command screen by clicking               Start...Run....cmd


15. Pop a cygwin window, harmonize Windows user information with cygwin, otherwise they cannot login
          mkpasswd   -cl   >   /etc/passwd
          mkgroup   --local    >   /etc/group
 

16.  If your XP logs on to a domain, you most likely have to manually edit /etc/group.
If your local account name is the same as the domain name, then you would need to use Windows's User admin function to
rename the local account from name to name.local
Then rebuild the passwd and group files as shown above, then edit the /etc/group file as shown above. Open firewall's TCP port 22

If your XP logs on to a domain, you may want to edit /etc/passwd to replace /home/username by //unc_server/path_to_home 

17.  CHECK  FOR  FUNCTIONALITY OF CYGWIN:

Test to see if sshd is working, pop a cygwin window (note: the command below is case sensitive)
whoami
ssh    localhost
or
ssh  -vvv  localhost
or
ssh    "$USERNAME@127.0.0.1"




Thanks'
Have a nice day.