Sftp backup server+ CentOS-5.5-i386-netinstall

underconstruction. This page is for my use.

1.  download and burn a boot cd

   http://ftp.usf.edu/pub/centos/5.5/isos/i386/CentOS-5.5-i386-netinstall.iso

2. boot with this cd with a pc have two hard drive. one for the os and other for the video files.
3. choose installation method http
4. 

5. Website Name: mirror.centos.org
   CentOS Directory: (for i386) /centos/5.5/os/i386
   CentOS Directory: (for 64 bit) /centos/5.5/os/x86_64

6. 

7. select server and customize now options

8. Then click "Next" to continue on
   

   Once presented with the custom package selection you need to un-check/check the following:

   Applications = Check only "Editors" and "Text Based Internet"
   Servers = Un-check everything
   Base System = Check only "Base" (you can check Administration Tools and System Tools if you need them, but they are not necessary)
   

9. Now let the system finish installing

10. Reboot all commands should be run as root

11.  After the first reboot the setup screen should appear. If not then log into the system and type "setup"

12.   

13. Go into the "Firewall Configuration" enable the Security Level, and Enable SELinux . click on cutomise and select ssh

14. 

15.   cd /bin/

16. wget http://www.malayalam.net/howto/sftpbackupserver/sftpshell

17.   sftpshell size is  7.6K.
    md5sum of sftpshell is 3d0aa724769bc7af70ac39c524c082fa sftpshell
    

18. chown root.root /bin/sftpshell

19. chmod 555 /bin/sftpshell

20. create a backup user for each client pc

21. useradd -s /bin/sftpshell backuppc1

22. on client linux pc create a user backuppc1

23. login as backup on client pc

24. ssh-keygen -t rsa 

25. sftp backupserver

26. put ~/.ssh/id_rsa.pub  .ssh/authorized_keys

27. after this logging on to backupserver use publickey

28. create a cronjob to upload backup files to backupserver as backupuser

29.