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ELEC ENG 4039A/B

FINAL YEAR HONOUR PROJECT

OPTIMISATION WLAN FOR BROADBAND ACCESS
 

Introduction

Project Background

WLAN Background

Linux and WLAN

Network Optimisations

Current Development

Further Development

Project Management

People

Useful Links

 

Related Link

School EEE

Acknowledgment

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HOW-TO Series

1. How to compile a package

The utilities and all the applications in Linux are grouped in tar ball or gz format. They have a special name which is called package. If you are working with Linux system, you should familiar with this term. GNU configure and build system simplifies the building of programs distributed as source code. All programs are built using a simple, standardised, two step process. The program builder need not install any special tools in order to build the program.

The configure shell script attempts to guess correct values for various system-dependent variables used during compilation. It uses those values to create a Makefile in each directory of the package.

The simplest way to compile a package is:

  1. cd to the directory containing the package's source code.
  2. Type ./configure to configure the package for your system.
  3. Type make to compile the package.
  4. Optionally, type make check to run any self-tests that come with the package.
  5. Type make install to install the programs and any data files and documentation.
  6. Optionally, type make clean to remove the program binaries and object files from the source code directory .
  7. Type make distclean so that the package can be reinstall on multiple environment.

Check the README and INSTALL file at each package for more information on how to install and use.

B2. How To Extract Compressed File

The below table shows some common compressed file formats which are normally use in Linux world.

Compressed Format

File Format

Extract Command

tar

file.tar

tar –xvf

gz

file.gz

tar –xzvf file.gz

bz2

file.bz2

bunzip file.bz2

tar –xjf file.bz2

x = extract the tar ball                                             j = tarball is bz format

z = tar ball is gz format                                            f = follow file name

B3. How-to reset ip address without resetting PC

/etc/init.d/network restart

B4. How-to turn off firewall setting off

/etc/init.d/Susefirewall stop 

B5. Mini Linux Command How-to

 WARNING!! This is not a complete list and is not intended to show in the detail of linux commands. It is only tend to include Common commands that use often during developing process and wireless related commands.

If you found that the explanation and example are unclear, do read from menu or look for how-to series at Linux main webpage.

 

Networking Command

 

ifconfig

Interface configuration – return network configuration

 

ifconfig eth0

return value of eth0 only

 

ifconfig eth0 up

 

start the eth0 interface ( just in case if it is not up)

ifconfig eth0 down

 

Close down the connection with eth0

ifconfig eth0 xxx.xxx.xxx.~

where ~ =[0:255]

 

Set the ipaddress for eth0

/etc/init.d/network restart

Restart the network back to default setting without reset the computer

 

ipconfig

 

Similar to ifconfig ( this command is used to check the ipaddress of Access point at first stage boot loader and not in linux system)

 

 

 

Wireless Networking Command

 

Display routes

Similar to ifconfig. Display all interface- wired and wireless interface

 

iwconfig wlan0

Display wlan0 only

 

Iwlist scan

 

Scans from all supported cards and reports stats on access point or clients ( ie. Laptops)

 

Route –n

 

Display routes

 

 

System command

dmesg

Display the kernel messages. Useful immediately after boot up or at any time that the OS messages may need reviewing.

 

cat

 

To view the file contents

cp <source/file> <destination/file>

 

Copy file from source address to destination address.

When file at destination address is empty. The file with the same name will be created

 

ls

List all the directories and files at current directory

 

lsmod

 

List running modules

insmod <modulename>

 

Load the module <modulename>

mount

 

 

unmount

 

 

vi <filename>

 

Open file name under console to view/edit using vi editor

emacs <filename> &

Open file name using emacs editor.

& means open in new window so free up the console for the next instruction.

 

Ctrl-Z

 

Kill the process

grep

 

To look for a particular file

Ping xxx.xxx.xxx.~

where ~ =[0:255]

 

Ping if xxx.xxx.xxx.~ is alive

 

Ping –f xxx.xxx.xxx.~

where ~ =[0:255]

 

Flood ping to xxx.xxx.xxx.~

More information

Freenet-Antennas

UltraWAP Hardware Hacking

UltraWAP Firmware Development

Troubleshooting

HOW_TO

 

      

 

 

 

 

 

 
 

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