auth sufficient pam_rootok.so auth required pam_wheel.so use_uid auth required pam_env.so auth required pam_unix.so nullok account required pam_unix.so password required pam_unix.so nullok # session required pam_selinux.so close session required pam_limits.so session required pam_env.so session required pam_unix.so session optional pam_lastlog.so # session required pam_selinux.so open