login   auth       requisite  pam_securetty.so # /etc/securetty (CONSOLE)
login   auth       required   pam_unix.so
login   auth       optional   pam_group.so # group.conf (CONSOLE_GROUPS)
login   auth       requisite  pam_nologin.so # /etc/nologin (NOLOGINS_FILE)
login   auth       required   pam_env.so # pam_env.conf (ENVIRON_FILE)
login   account    required   pam_unix.so
login   account    requisite  pam_time.so # time.conf (PORTTIME_CHECKS_ENAB)
login   account    required   pam_access.so # access.conf (/etc/access.defs)
login   session    required   pam_unix.so
login   session    required   pam_limits.so # limits.conf (/etc/limits)
login   session    optional   pam_lastlog.so # (LASTLOG_ENAB)
login   session    optional   pam_mail.so standard noenv # (MAIL_CHECK_ENAB)
login   session    optional   pam_motd.so # (MOTD_FILE)
login   password   required   pam_unix.so shadow md5