Jim’s Organization just completed a major Linux roll out and now all of the organization’s systems are running Linux 2.5 Kernel. The roll out expenses has posed constraints on purchasing other essential security equipment and software. The organization requires an option to control network traffic and also perform stateful inspection of traffic going into and out of the DMZ, which built-in functionality of Linux can achieve this?
A.
IP ICMP
B.
IP Sniffer
C.
IP tables
D.
IP Chains
Explanation:
iptables is the name of the user space tool by which administrators create rules for the packet filtering and NAT modules. While technically iptables is merely the tool which controls the packet filtering and NAT components within the kernel, the name iptables is often used to refer to the entire infrastructure, including netfilter, connection tracking and NAT, as well as the tool itself. iptables is a standard part of all modern Linux distributions.