Linux® and Windows® Interoperability Guide

Network Security

It is not enough to secure the integrity of each host computer; we must also secure the entire Elsolutions network.

Firewalls and Attacks

The Elsolutions intranet—the part of its network inside the inner firewall—will use nonroutable IP addresses. A packet targeting one of these addresses cannot be routed into Elsolutions' network. We avoid consuming scarce addresses issued by the Internet Information Center (InterNIC), while gaining a measure of security. Desktop machines are to be dynamically issued nonroutable IP addresses through a Linux Dynamic Host Configuration Protocol (DHCP) server. Administrators of server machines will give them static nonroutable addresses obtained from a service application that allocates the addresses ...