SSH immediatly logs me out after successful login

[framon]

hi
I'm migrating from one server to another I've moved the admin account with a backup, but after restoring the backup in the new server, I was not able any more to log in via ssh as user admin.

The ssh connection is shout down after I'm successfully logged in

---------
[root@vps ~]# ssh admin@localhost
admin@localhost's password:
Last login: Sun Jan 16 19:24:22 2011 from localhost.localdomain
Connection to localhost closed.

---- and this is my secure log :

Jan 16 19:28:48 orange sshd[1535]: Accepted password for admin from 127.0.0.1 port 42865 ssh2
Jan 16 19:28:48 orange sshd[1535]: pam_unix(sshd:session): session opened for user admin by (uid=0)
Jan 16 19:28:48 orange sshd[1535]: pam_unix(sshd:session): session closed for user admin


what can be the cause of the problem ?

 

[framon]

I cannot even "su admin" from root account

 

[framon]

solved

importing users and admin, changed the bash to /bin/false , fixing to /bin/bash solved the problem.