Hello The following problems are on a Dell Inspiron 3500 running Redhat 7.2. A week ago, for no apparent reason that I can fathom, I could no longer log in as either root or as a regular user. I logged in using "single user mode" and discovered that pam_nologon.so had file size = 0. So I reloaded pam and pam-dev ( -0.75-14) from the Redhat CD ROM and the problem appeared fixed. A few days later I attempted to change my (non root) password which appeared to succeed. However, now I get the message "login incorrect" even with the new password. I created a new user account (as root using linuxconfig) which appeared to work - however when attempting to log on as the new user I again receive the message "login incorrect". I next downloaded and installed the (I think) most recent, stable versions of pam and pam-devel: pam-devel-0.75-20.i386.rpm and pam-0.75-20.i386.rpm. However after upgrading, I could once again no longer log on as anyone including root (except in single user mode). Consequently I "upgraded" back to the older (0.75-14) pam and pam-devel packages and am back to where I can log on, but only as root. When I try to log on as "schattner", /var/log/messages states that: Jan 12 11:18:31 pschattner login(pam_unix)[1625]: authentication failure; logname=LOGIN uid=0 euid=0 tty=tty2 ruser= rhost= user=schattner Jan 12 11:18:33 pschattner login[1625]: FAILED LOGIN 1 FROM (null) FOR schattner, Authentication failure Jan 12 11:18:43 pschattner login(pam_unix)[1625]: session opened for user root by LOGIN(uid=0) This surprises me since schattner's uid=502 not 0. Another possibly relevant observation is that when I verify pam I get: [root@pschattner root]# rpm -V pam S.5....T c /etc/pam.d/system-auth (same message whether I have -14 or -20 installed) I don't know whether this is all "newbie" error on my part or some problem in PAM. In either case I would be very grateful to anyone who may be able to help me resolve this problem. Thanks in advance Peter Schattner
