1auth required pam_unix.so nullok 2 3account required pam_unix.so 4 5password required pam_unix.so nullok 6 7# session required pam_selinux.so close 8session required pam_limits.so 9session required pam_env.so 10session required pam_unix.so 11session optional pam_lastlog.so 12# session required pam_selinux.so open 13