Introduction To Networks Using Linux
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Transcript of Introduction To Networks Using Linux
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NAD710
Introduction to Networks Using Linux
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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
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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
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Governing Agencies
ICANN The Internet Corporation
for Assigned Names and Numbers
IANA Internet Assigned Numbers authority
IEEE The Institute of Electrical and Electronics Engineers
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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.
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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
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Linux Network Commands
ifconfig netstat ping traceroute nslookup route dig
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Configuring Network Hardware (Chapter 3)
Kernel Configuration
Linux network devices Ethernet loadable kernel modules
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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
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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.
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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?
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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
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NFS Network File System (Chapter 14)
Preparing NFS Mounting an NFS volume The NFS daemons The exports file
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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
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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.
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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)
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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.
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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