SuSE

Well i have added the /bin/chrootshell in /etc/shells

I have checked the sudoers , i have added the user there

luser ALL= NOPASSWD: /usr/bin/chroot, /bin/su - luser

I still have same problem

You have substituted the username you wanted for "luser", yes? Or if you created a new "luser", did you give it a password? If you created a new luser, how did you do so?

useradd -d /tmp -s /bin/chrootshell luser

passwd luser

and i gave a password

I followed the steps in the tutorial

Thats weird

These instructions are faulty or obsolete, I think. They are five years old, and very rough, and prone to break over minor changes in the login system.

The link someone replied to it with looks more promising. sftp-only chroot jail. It also says openssh v5 and newer supports chroot natively, something I didn't know.

Well, i used a script (attached) which i found on the internet and which seems to works perferctly. it creates the user and it locks him to his home directory.
remember the user needs to be able to login.He will be login though thru an application FileZilla to sftp.

But I tried to create the jail manually cause i need to understand what is really happening. The jail gets created but when it comes to su - user..
it gets the error

/bin/su : incorrect password

I dont know if im missing a library..Im tired of it now..

I still suspect the passwd files inside your chroot.

How about not using random tutorials and suspicious scripts dredged from the internet and trying openssh's built-in chroot feature instead? That will probably work a lot better.

openshh built in chroot ????

Where do i start ?