Hello all: While I am studying iptables,I read such contents from a tutorial as bellow: "the rc.firewall.txt neede the following options to be compiled to kernel or as modules.. .CONFIG_PACKET .CONFIG_NETFILTER .CONFIG_IP_NF_CONNTRACK .......... I find some moudles of REDHAT 7.2 in /lib/modules/2.4.7-10/kernel/net/ipv4/netfilter, but the modules'name are not the same as the above. There are about 20 modules in the directory. Why? How could I do? How could I get these modules?