Configuring Passive FTP Login

/etc/rc.d/rc.sysinit looks for two locations to load modules:

# Load other user-defined modules for file in /etc/sysconfig/modules/*.modules ; do [ -x $file ] && $file done # Load modules (for backward compatibility with VARs) if [ -f /etc/rc.modules ]; then /etc/rc.modules fi 

So, you should put the loading command into /etc/sysconfig/modules/*.modules or /etc/rc.modules:

# echo "modprobe ip_conntrack" >> /etc/sysconfig/modules/iptables.modules # chmod +x /etc/sysconfig/modules/iptables.modules

modprobe ip_conntrack
modprobe ip_conntrack_ftp
modprobe iptable_nat
modprobe ip_nat_ftp