Fall 2008 NAD710 Weekly Schedule
The tentative weekly schedule shown here is subject to change.
Week 1 (Sept 1) - Intro to Networking / IP Network Basics
Lecture
- Program Introduction - by Prof. John Selmys
- Course Introduction - by Prof. Raymond Chan
- Lectures and Labs
- Introduction to Networking
- Network Types
- Network Models
- OSI Reference Model
- TCP/IP Network Model
- IP Networking Basics
- The Client-Server Model
- Request for Comment
- Institute of Electrical and Electronics Engineers (IEEE)
- The Internet, TCP/IP, and other protocol stacks
Lab 1
Week 2 (Sept 8) - Manual network configuration
Lecture
- Network drivers and loadable kernel modules
- Identify the network device name - ifconfig/ip
- IP Address, Broadcast Address and Network Mask
- IP Address Class
- Private IP address space
- Display the kernel's address resolution table
- Check the network connectivity to other machines
- Display kernel routing table
Lab 2
Week 3 (Sept 15) - Sysconfig network configuration
Reading
Ethernet Hub
A network hub or repeater hub is a device for connecting multiple twisted pair or fiber optic Ethernet devices together, making them act as a single network segment. Hubs work at the physical layer (layer 1) of the OSI model. The device is thus a form of multiport repeater. Repeater hubs also participate in collision detection, forwarding a jam signal to all ports if it detects a collision.
Hubs also often come with a BNC and/or AUI connector to allow connection to legacy 10BASE2 or 10BASE5 network segments. The availability of low-priced network switches has largely rendered hubs obsolete but they are still seen in older installations and more specialized applications. More on Wikipedia...
Network Switch
A network switch is a broad and imprecise marketing term for a computer networking device that connects network segments.
The term commonly refers to a Network bridge that processes and routes data at the Data link layer (layer 2) of the OSI model. Switches that additionally process data at the Network layer (layer 3) (and above) are often referred to as Layer 3 switches or Multilayer switches.
The term Network switch does not generally encompass unintelligent or passive network devices such as hubs and repeaters.
The first Ethernet switch was introduced by Kalpana in 1989. More on Wikipedia ...
Network Router
A router (pronounced /'rautər/ in the USA, pronounced /'ru:tər/ in the UK, or either pronunciation in Australia) is a computer whose software and hardware are usually tailored to the tasks of routing and forwarding information. More on Wikipedia ...
Lecture
- Network Communication by Name - /etc/hosts, /etc/resolv.conf
- Configure Network Name services - nsswitch.conf (Name Service Switch configuration)
- Using DNS servers: how and why
- Check the network connectivity to other machines
- Show active sockets, interfaces, and routing information
- Connect to hosts on your local network
- Connect to hosts on different networks with specific routes/gateways
- Connect to the Internet - Default Gateway
Sysconfig network configuration
- To start the the program:
- click on the menu bar "system->Administration->Network"
- type at the command line "system-config-network"
Lab 3
Week 4 (Sept 22) - NetworkManager
Lecture
NetworkManager Project Web Site
Red Hat Article on NetworkManager
- Note that the repository for the NetworkManager source code has been moved from cvs to subversion (svn). Details can be found here.
NetworkManager
- A service daemon that attempts to keep an active network connection available at all times.
- makes networking configuration and setup painless and automatics as possible.
- NetworkManagerDispatcher
- nm-tool - provides information about NetworkManager, device, and wireless networks.
[rchan@rh9 ~]$ nm-tool
NetworkManager Tool
State: connected
- Device: eth0 ----------------------------------------------------------------
Type: Wired
Driver: r8169
State: connected
HW Address: 00:1B:38:12:E2:33
Capabilities:
Supported: yes
Carrier Detect: yes
Speed: 100 Mb/s
Wired Settings
IP Settings:
IP Address: 192.168.0.200
Subnet Mask: 255.255.255.0
Broadcast: 192.168.0.255
Gateway: 192.168.0.1
DNS: 192.168.0.1
- Device: wlan0 ----------------------------------------------------------------
Type: 802.11 Wireless
Driver: iwl4965
State: disconnected
HW Address: 00:00:00:00:00:00
Capabilities:
Supported: yes
Wireless Settings
WEP Encryption: yes
WPA Encryption: yes
WPA2 Encryption: yes
Wireless Access Points
- NetworkManager Administration
- Check the service daemon status
[root@fc9 ~]# service NetworkManager status NetworkManager (pid 2239) is running...
- Stop the service daemon (Don't do this if you are connected to the system remotely. If you do, you will get cut off.)
[root@fc9 ~]# service NetworkManager Stop Stopping NetworkManager daemon: [ OK ]
- Start he service daemon
[root@fc9 ~]# service NetworkManager Start Setting network parameters... [ OK ] Starting NetworkManager daemon: [ OK ]
Lab 4
Week 5 (Sept 29) - Nameserver configuration
Lecture
Theory
Practical
- Different type of Domain Name Servers
- Caching only Name Server
- Primary Name Server
- Secondary Name Server
- Free and Open Source Software for running a DNS - BIND
- BIND source codes and Binary
- Source code can be download from the ISC web site
- Installation
- Standard/Normal installation
- Chroot installation
- BIND Configuration file(s)
- Main configuration file - named.conf
- zone file(s) - depends on the setup in named.conf
- Forward lookup zone file(s)
- Reverse lookup zone file(s)
- Starting and Stopping a BIND DNS
- BIND DNS maintanence
- BIND source codes and Binary
- Basic Operation of the Internet Domain Name System
- Name Server and Resolver
- Name Server Configuration
- Resolve Configuration
- DNS queries and responses
- Recursive and non-recursive queries
- Authoritative and non-authoritative responses
Lab 5
Week 6 (Oct 6) - NFS I
Lecture
Resources
- Remote Procedure Call
- NFS Overview and Gotchas
- Linux NFS Overview
- CITI NFSv4 Project Page
- NFSv4 Wiki Page
Theory
RPC and Portmapper Slides (pdf format)
Introduction to NFS Slides (pdf format)
Practical
- Enable NFS
- Kernel Module
- Portmapper - the rpcinfo command
- server daemons:
- NFS services
- NFS quotas
- NFS daemon
- NFS mountd
- NFS Server configuration file /etc/exports
- syntax
- options: ro/rw, root_squash/no_root_squash/all_squash
- exportfs command
- showmount command
- NFS Client configuration file /etc/fstab
- syntax
- mount options: ro/rw, soft/hard, intr, rsize/wsize, proto, nfsvers
- NFS security issues
Week 7 (Oct 13) - NFS II
Lab 6
FSOSS and Break Week (Oct 20)
Week 8 (Oct 27) - Midterm Test and Samba I
Midterm Test 1 (10% of final grade): October 28, 2008
- All material covered from week 1 to week 5
- Lab 1 to Lab 5
- Close Book
- There will be multiple choice questions, and 5 short answer questions.
Readings
CIFS: Common Internet File System
Topics
Installing samba packages
Samba Configuration file: /etc/samba/smb.conf
smbclient
- mount.cifs
Samba Web-based Administration Tool SWAT
- Install samba-swat package: yum install samba-swat (must have xinetd package installed)
- Enable swat under xinetd's control: chkconfig swat on
- Startup xinetd: service xinetd start (or service xinetd reload if xinetd is already running)
- Point your web browser to http://localhost:901
- When prompted for authentication:
- Enter "root" as the user name
- Enter password for "root"
Lab 7
Week 9 (Nov 3) - Samba II
Week 10 (Nov 10) - Routing Protocols
Reading Resource
TCP/IP Tutorial and Technical Overview Chapter 5 - Routing Protocols
Dynamic Routing Protocol: OSPF
Lecture Topics
- Single Segement IP networks
- Configure a Linux System as a router
- Static Routing
- Multiple Network Interface
- add/remove routes
route add -net [network address] netmask [mask] gw [gw_address] route add -net [network address] netmask [mask] dev [interface] route add default gw [gw_address] route del -net [network address] netmask [mask] gw [gw_address] route del -net [network address] netmask [mask] dev [interface] route del default gw [gw_address]
- Dynamic Routing
- Routing Algoritm
- Shortest Path Routing
- Distance Vector
- Link State
- Routing Algorithm
- Interior routing protocols
- Exterior routing protocols
- Shortest Path Routing
- Routing Protocols
- RIP
- OSPF
- Routing Algoritm
Lab 9
Week 11 (Nov 17) - IPv6 and the Future of Networking
Midterm Test 2 (20% of final grade): November 18, 2008
- All material covered from week 1 to week 9
- Lab 1 to Lab 8
- Close Book, but you can bring two A4 size reference sheets to your test.
- There will be NO MC and matching questions. Essay type and short answer questions only.
Introduction to IPv6
Reading
Notes
IPv6
- New features:
- Expanded Addressing Capabilities
- Header Format Simplification
- Improved Support for Extensions and Options
- Flow Labeling Capability
- Authentication and Privary Capabilities
- Supports 128 Bit address space
- IPv6 Addressing Format - Hexadecimal Colon Notation
- Network Autoconfiguration
- IPv6 Address types
- Unicast
- Provider-based unicast addresses
- Special addresses
- Local Addresses
- Aggregatable golbal unicat addresses RFC2374
- Multicast address
- Unicast
- IPv6 Address allocation
Some Examples: IPv6 Prefix Usage 0000::/8 Reserved 2000::/3 Global Unicast FC00::/7 Unique local Unicast FE80::/10 Link Local Unicast FF00::/8 Multicast
- IPv6 Headers:
- Base Header (40 bytes)
- Extension headers
- ICMPv6