I need iptables ftp nat help

[ToddAndMargo]

Hi All,

My iptables firewall ported from RHEL won't connect to ftp sites
and throws this error (written by me years ago):


     WARNING: active FTP rules have been selected but one or
     more necessary modules have not been detected

     In /etc/sysconfig/iptables-config, you must add ip_nat_ftp
     and ip_conntrack_ftp to IPTABLES_MODULES. Delimiter is a
     space.  For example:
          IPTABLES_MODULES=ip_nat_ftp ip_conntrack_ftp

     To load changes, use:
          # /etc/rc.d/init.d/iptables restart
          # systemctl restart iptables

     To check if modules are loaded, use
          lsmod


1) is Fedora doing FTP differently in iptables?

2) where do I find
         ip_nat_ftp
         ip_conntrack_ftp
    now a days?


Many thanks,
-T