The results of live processing refer to the actual operational use of the purchasing package in a live environment.

Explanation/Reference:
Explanation:
Attack attempts that could not be recognized by the firewall will be detected if a network- based intrusion detection system is placed between the firewall and the organization's network. A network-based intrusion detection system placed between the internet and the firewall will detect attack attempts, whether they do or do not enter the firewall.

Section: Information System Operations, Maintenance and Support

Explanation/Reference:
Explanation:
Ipchains is a free software based firewall running on earlier Linux. It is a rewrite of ipfwadm but is superseded by iptables in Linux 2.4 and above.
Iptables controls the packet filtering and NAT components within the Linux kernel. It is based on Netfilter, a framework which provides a set of hooks within the Linux kernel for intercepting and manipulating network packets.