"One of the greatest features of the Linux® operating system is its networking stack. It was initially a derivative of the BSD stack and is well organized with a clean set of interfaces."

Many so-called networking classes will start by teaching you to memorize the name of every layer and every protocol contained within this model. Don't do that. Do realize that layers 5 and 6 can be completely ignored, though.

Here is a howto about the configuring ip using networking related files in Ubuntu / Debian systems.
The interfaces file contains the details of all configurations...

File: /etc/network/interfaces
This file contains network interface configuration information for the ifup and ifdown commands. This is where you configure how your system is connected to the network.

Linux oldtimers have known for years that it's not necessary to go into hock for expensive, proprietary networking gear, because Linux comes with a powerhouse networking stack.

The Linux kernel is the core of a large and complex operating system, and while it's huge, it is well organized in terms of subsystems and layers. In this article, you explore the general structure of the Linux kernel and get to know its major subsystems and core interfaces. Where possible, you get links to other IBM articles to help you dig deeper.

As users demand more variety from their mobile devices, the mobile Linux ecosystem has responded by pushing innovation higher in the stack -- from the operating system itself up through the middleware layer to the user interface. This is where the real value in openness lies, write Tomi Rauste and Sampo Nurmentaus of Movial.

Startup Linux networking vendor Vyatta is set to announce a new hardware appliance on December 9th. The new device will add more power to Vyatta's lineup of networking products that they are targetting competitively against Cisco and other proprietary vendors.

We have already discussed how to install VirtualBox 2.1.0  in ubuntu one of the important change is Host interface networking made easy with Host Interface Networking, VirtualBox uses a device driver on your host system that filters data from your physical network adapter. This driver is therefore called a “net filter” driver.

The Novell-sponsored OpenSUSE project released Milestone 2 of its OpenSUSE 11.3, featuring Linux 2.6.33, GNOME 2.3 beta, and a new network security stack. OpenSUSE 11.3 Milestone 2 also debuts the new KDE 4.4 desktop, which adds a netbook interface, plus new tabbing and social networking features.