I am also having this exact same problem (small world -:)
any ideas anyone?
> > I'm attempting to controll who can su to root using the listfile
> > but am not having any success. It denies all users - which is not my
> > intent.
> I'm having a similar problem but in my case, I cannot su OR login to
> root from any user account. I have double-checked the PAM conf file for
> su against other Linux (RedHat) machines here and I still can't figure
> it out. Here is my current /etc/pam.d/su file:
> auth required /lib/security/pam_pwdb.so shadow nullok
> account required /lib/security/pam_pwdb.so
> password required /lib/security/pam_cracklib.so
> password required /lib/security/pam_pwdb.so nullok use_authtok md5
> session required /lib/security/pam_pwdb.so
> No other security files under /etc have any entries and /etc/securetty
> includes all possible ttys that I'm trying (even though I don't have the
> securetty pam module activated). The problem happens in both X terminals
> and console terminals.
> Even stranger, I can su from root to any other account, but then I can't
> su back to root. I can log in normally with user accounts, but I cannot
> log into root by doing shell$ login. Y can only log in when I get a
> clean login prompt.
> Any ideas about what I'm still missing?? What other files come into play
> that I have overlooked?
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> Before you buy.