NAD710

Introduction to Networks Using Linux

Linux Network Administrator's Guide, 2nd Edition

By Olaf Kirch, Terry Dawson2nd Edition June 2000 1-56592-400-2,

Approved by LPI (Linux Professional Institute)

It is also online

Introduction (Chapter 1)

Gain an understanding of how Linux fits into today’s networked world

Discuss the strengths and weaknesses of Linux

Learn when a Linux solution the right decision

Install and administer the latest in Linux applications for resource sharing

Governing Agencies

ICANN The Internet Corporation

for Assigned Names and Numbers

IANA Internet Assigned Numbers authority

IEEE The Institute of Electrical and Electronics Engineers

IAB

IAB The Internet Activities Board

The origin of today's IAB lies in the Internet Configuration Control Board (ICCB), which was created in 1981 by Vint Cerf, at that time program manager at DARPA, to advise him on technical issues. The ICCB was chaired by David Clark, MIT.

In September 1984, after the ICCB meeting held at RSRE in Malvern, UK, the ICCB was disbanded and replaced by the Internet Advisory Board (IAB). This change was initiated by Dave Clark and Barry Leiner, who had taken over management of the Internet research program at DARPA. The IAB consisted of the chairs of the newly-formed research task forces and Jon Postel (ISI), as RFC editor and "protocol czar". The first set of chairs of the task forces were the members of the ICCB. The IAB was chaired by

Dave Clark.

TCP/IP Networking (Chapter 2)

Network Interfaces IP Addresses 192.168.1.25 - 10.0.0.15 - 198.235.216.131

Address Resolution 64.58.76.227 -> 00:04:ac:38:93:85

IP Routing ICMP messaging

Resolving Host Names www.yahoo.com -> 64.58.76.227

Linux Network Commands

ifconfig netstat ping traceroute nslookup route dig

Configuring Network Hardware (Chapter 3)

Kernel Configuration

Linux network devices Ethernet loadable kernel modules

Configuring TCP/IP Networking (Chapter 5)

Setting the Hostname Assigning IP addresses statically Automatically receiving an address

(DHCP) Subnet masks - what are they and what do

they do? Dividing networks using Subnets

TCP/IP - The need for standards

Why is it so important to the Internet? Gain an understanding of:

– the OSI and DOD Layer models– the 802.x standards

Why standards play such an important role Explain the RFC (Request for comments) as

maintained by the IETF (Internet Engineering Task Force) system and how the system is used.

ARP and RARP

The address resolution protocol

How does a machine communicate within the subnet?

When do we need to route using a Layer 3 Protocol?

DNS (Chapter 6)

Setting up name services (BINDx) How does it resolve names to addresses

and vice-versa You will setup your machine with the

name service running

NFS Network File System (Chapter 14)

Preparing NFS Mounting an NFS volume The NFS daemons The exports file

SAMBA

Samba is an Open Source/Free Software suite that provides seamless file and print services to SMB/CIFS clients

We will discuss and install samba on our machines

Bridges, Routers and Switches

Which device should be used to address a specific design goal?

What the differences are with each of these devices?

Why the layered model approach helps speed up the process required to bring products to market.

Routing Protocols

How information is passed between routers

How they can protect networks or if incorrectly installed expose them

Discuss RIP (routing information protocol) and OSPF (open shortest path first)

Bridging Protocols

Operates at Layer 2 of the OSI model Smart bridges, allow some form of

intelligence at Layer 3 Spanning-Tree Protocol is a link management

protocol that provides path redundancy while preventing undesirable loops in the network.

Network monitoring and Discovery tools

Ethereal - view the packets in real time Nmap - port scanner Npulse - front end for nmap You will install and run these applications

on your machines