After installing FC2 I have experienced a probelm with su.

As a "normal" user:

user@machine>su
Password:

After entering the password nothing happens. If I enter a worng password I get 'su: incorrect password', thus the password appears to be checked.

Again as a normal user:

user@machine>su -
Password:
root@machine>

As root there are no problems with su.

The problem has been observed on two different machines both with NIS support. I doesn't matter if the user is local or a NIS user.

I have also installed FC2 on a machine without NIS supprt and in this case there are no problems with su.

Any suggestions?