hello!, Thank you Mr Zoharst about help i check if nologin file exist this file not exist, second step i change the root password when i try to login as root ask me for password but get me this message login incorrect ok i reboot my system and boot as linux single and change the password again result same thing, but there are strange something i have a web based administrative tool (webmin) i login from it to see if i can solve this problem but when i enter the new password get me login incorrect but when enter old password accepted , i use the file manager in this tool to check the config of pam but i don't have pam.conf i have pam.d dir include separated config files which file i should try to reconfig. i need more help )) thank you, -- _______________________________________________ FREE Personalized E-mail at Mail.com http://www.mail.com/?sr=signup Talk More, Pay Less with Net2Phone Direct(R), up to 1500 minutes free! http://www.net2phone.com/cgi-bin/link.cgi?143