I solved the mystery.
My share of experience:
NOTE: TILL NOW TESTED ON RedHat Enterprise Linux 4.0 (ES,WS) ONLY.
If you want to by-pass the password prompt during login do this:
open the following file:
Change all "required" strings to "optional" strings and save and exit the file.
Try and login via any user(root also). You will be prompted for password press
enter or anything you will be at the shell.
This way Security can be breaked out.
Other files in /etc/pam.d directory also are for the security purpose. Check out
login via the GDM. Here you will have to input the right password. But if you
want to skip it just change the following file:
Change all "required" strings to "optional".
If you want to known about the internal workings of these files mail me and I
will provide you with the solutions.
Be Open By Source