I want to get hands on experience of using iptables, DMZ firewall, DHCP firewall, etc.for which Tutorial says I need to compile kernal with following options OR as modules :

CONFIG_NETFILTER
CONFIG_IP_NF_CONNTRACK
CONFIG_IP_NF_IPTABLES
CONFIG_IP_NF_MATCH_LIMIT
CONFIG_IP_NF_MATCH_STATE
CONFIG_IP_NF_FILTER
CONFIG_IP_NF_NAT
CONFIG_IP_NF_TARGET_LOG

I have installed Redhat Linux 8.0 on server machine which by default installs iptables 1.2.6a.

Do Redhat 8.0 install all these modules. How to check whether these modules are installed or not.

Thanks

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