securing our wireless community
Hướng dẫn kết nội hai máy tính bằng Wireless
Ngày tải lên :
15/08/2012, 10:40
... automatically, chọn This is a computer-to-computer(adhoc)
network; wireless access points are not used. Nhấn Ok để quay lại bảng Wireless
Networks và nhấn Ok một lần nữa để kết thúc.
2
Lúc này ... • Trong Wireless Networks nhấn vào nút Add.
• Trong Association, đặt tên cho mạng trong mục Network name,...
- 4
- 910
- 5
Hướng dẫn hack wifi với card wireless
Ngày tải lên :
15/08/2012, 11:37
... bản tuyệt vời khi nó có thể Monitor&Inject được với card wireless
4965AGN …
Chuẩn bị:
Đầu tiên, để chắc chắn máy bạn đg dùng card Wireless 4965AGN thì xem hình dưới
đây:
... xuất hiện màn hình Menu lựa chọn. Vào đến màn hình Backtrack, 1 số
Hướng dẫn Hack Wifi với card wireless 4965AGN
Vài dòng tâm sự:
Thời gian gần đây area ko có điều kiện Online nhiều trên 4rum, ... mạnh kinh dị!), tìm tòi, nghiên cứu, đọc tài liệu và xem cả Clip vẫn ko đc … vì
đau đớn thay chip Wireless của mình ko support hack với phiên bản BackTrack 3
(phiên bản CDHack Wifi nổi tiếng nhất...
- 4
- 4K
- 91
VẤN ĐỀ NĂNG LƯỢNG TRONG MẠNG WIRELESS SENSON VÀ ĐÁNH GIÁ BẰNG MÔ PHỎNG.doc
Ngày tải lên :
25/08/2012, 14:01
... Tổng quan về mạng Wireless Sensor
2 - Chơng II : Năng lợng trong mạng Wireless Sensor
3 - Chơng III : Phần mềm mô phỏng cho mạng Wireless Sensor
4 - Chơng IV: Mô phỏng mạng Wireless Sensor
Do ... thu thập thông
tin trong đó mạng Wireless Sensor hiện đang đợc dùng phổ biến trên thế giới và đang
dần xâm nhập vào nớc ta.
Có nhiều vấn đề đặt ra cho mạng Wireless Sensor nh vấn đề năng lợng, ... án: Vấn đề năng lợng trong mạng Wireless Sensor và đánh giá
bằng mô phỏng.
Mục đích của đồ án này là tìm hiểu các vấn đề liên quan tới năng lợng trong mạng
Wireless Sensor, từ đó đa ra các...
- 72
- 732
- 13
WIRELESS ACCESS (Non-authenticate)
Ngày tải lên :
06/09/2012, 15:58
... C:\SharedWireless
5. Máy chn
(wireless client):
- i cable USB vào wireless card.
- Trong My Network Places, s thy Wireless connection báo t dây (Invalid address)
- Click chut phi ti Wireless ... máy chn
thy wireless connection ã
disconnect ch không t ng connect
i: Wireless connection unavailable.
- Click chut phi ti wireless connection
> View available wireless networks ... vào 1 access point khác: Chn properties ca wireless connection > tab Wireless
Networks > ánh du chn mc "use Windows to configure my wireless network settings" s kích
at...
- 5
- 970
- 2
Wireless and Mobile Management
Ngày tải lên :
12/09/2012, 15:06
... 6: Wireless and Mobile Networks 6-4
Elements of a wireless network
network
infrastructure
wireless hosts
❒
laptop, PDA, IP phone
❒
run applications
❒
may ... identical to) our slides, and
note our copyright of this material.
Thanks and enjoy! JFK/KWR
All material copyright 1996-2006
J.F Kurose and K.W. Ross, All Rights Reserved
6: Wireless and Mobile ... mobile is
remote
wide area
network
correspondent
6: Wireless and Mobile Networks 6-6
Elements of a wireless network
network
infrastructure
wireless link
❒
typically used to
connect mobile(s)...
- 62
- 514
- 0
John Wiley And Sons Wireless Networks eBook LiB
Ngày tải lên :
13/09/2012, 10:21
... market
and society in general.
1.2 Challenges
The use of wireless transmission and the mobility of most wireless systems give rise to a
Wireless Networks12
(2.3) applies, the channel is said to ... reported.
Wireless Networks20
Similarly, a lot of time will have to pass before we possess such knowledge on the health
concerns regarding wireless networks.
1.3 Overview
1.3.1 Chapter 2: Wireless ... compete for 3G licenses.
2.3 Wireless Propagation Characteristics and Modeling
2.3.1 The Physics of Propagation
An important issue in wireless communications is of course the amount of information...
- 418
- 638
- 3
Introduction to Wireless Communications
Ngày tải lên :
13/09/2012, 10:52
... relocate
the office
28
The Wireless Landscape
3
How Wireless Technology is Used
•
Wireless
–
Describes devices and technologies that are not
connected by a wire
•
Wireless communications
–
Transmission ... user data without the use of wires
•
Wireless data communications technologies include:
–
Bluetooth
–
Wireless LAN and WAN
–
Satellite
–
Cellular
29
The Wireless Landscape (continued)
10
Satellite ... (continued)
24
Fixed Broadband Wireless (continued)
17
Wireless Local Area Networks
(continued)
7
Bluetooth and Ultra Wide Band
(continued)
22
Fixed Broadband Wireless
•
Integrated Services...
- 51
- 622
- 0
Wireless Communications
Ngày tải lên :
13/09/2012, 10:52
... and a chip
16
RFID Applications
–
Transportation and Military
•
RFID tags embedded in standard courier packages
–
Can speed up and help automate sorting, in addition to
preventing errors
•
The ... vision-impaired people using a special device to listen
to a description of their drugs and dosages
Wireless Communications
Radio Frequency Identification
4
RFID System Components
•
Electronic Product...
- 18
- 504
- 0
Low Rate Wireless Personal Area Networks
Ngày tải lên :
13/09/2012, 10:52
... transmit using SIR
•
Then they shift to FIR speed
Wireless Communications
Low Rate Wireless Personal Area
Networks
2
Objectives
•
Describe a wireless personal area network (WPAN)
•
List the different ... standard
–
IrDA devices cannot send and receive at the same time
–
IrDA is easy to use
•
Bluetooth is a wireless technology that uses short-
range radio frequency (RF) transmissions
–
Supported by over ... ZigBee work
•
Describe the security features of low-rate WPAN
technology
3
What is a WPAN?
•
Wireless personal area network (WPAN)
–
Group of technologies that are designed for short-
range...
- 18
- 586
- 1
High Rate Wireless Personal Area Networks
Ngày tải lên :
13/09/2012, 10:52
... superframes
Wireless# Guide to Wireless Communications 22
Additional MAC Layer Functionality
(continued)
Wireless# Guide to Wireless Communications 24
Additional MAC Layer Functionality
(continued)
Wireless# ... and storage
Wireless# Guide to Wireless Communications 32
How UWB Works (continued)
Wireless# Guide to Wireless Communications 18
Additional MAC Layer Functionality
(continued)
Wireless Communications
Chapter ... are present
in the same order in every frame
Wireless# Guide to Wireless Communications 15
802.15.3 Network Topology (continued)
Wireless# Guide to Wireless Communications 27
Ultra Wide Band (UWB)
•
Allows...
- 45
- 579
- 3
Wireless Local Area Networks
Ngày tải lên :
13/09/2012, 10:52
... of wireless clients and an AP
•
Extended Service Set (ESS)
–
Two or more BSS wireless networks installed in same
area
–
Provides users with uninterrupted mobile access to the
network
•
All wireless ... functions
–
Wireless communications base station
–
Bridge between the wireless and wired networks
6
Wireless Network Interface Card
(continued)
5
Wireless Network Interface Card
•
Network interface card ... Service Set (IBSS)
mode
•
Wireless clients communicate directly among
themselves without using an AP
–
Quick and easy setup of a wireless network
•
Drawback is that wireless clients can only...
- 18
- 529
- 0
Wireless Metropolitan Area Networks
Ngày tải lên :
13/09/2012, 10:52
... Wireless Communications
Wireless Metropolitan Area
Networks
14
Multichannel Multipoint Distribution
Service (MMDS)
•
Multichannel multipoint distribution service (MMDS)
–
Fixed broadband wireless ... GHz
•
Architecture
–
Cells (like a cellular telephone system)
–
LMDS is a fixed wireless technology for buildings
7
Last Mile Wireless Connections
•
Microwaves are higher frequency RF waves
–
In the ... band
•
Microwave towers are installed roughly 35 miles (56
kilometers) apart from each other
•
Fixed wireless
–
Wireless as the last mile connection for buildings
•
Backhaul connection
–
Company’s internal...
- 21
- 557
- 1
Describe wireless wide area networks (WWANs) and how they are used
Ngày tải lên :
13/09/2012, 10:52
... latitudes
–
Orbits typically have a 24-hour period
30
Satellite Transmissions (continued)
26
Satellite Broadband Wireless
•
Use of satellites for personal wireless communication
is fairly recent
•
Satellite ... (J2ME)
–
Subset of Java specifically developed for programming wireless
devices
•
BREW is a runtime environment that resides on a wireless device
13
Second Generation Cellular Telephony
•
Second ... 1xRTT networks
25
Binary Runtime Environment for
Wireless (BREW)
•
BREW is a thin software environment
–
Very small program that resides on a wireless device
•
Capable of running applications...
- 42
- 864
- 0
Wireless Communications in Business
Ngày tải lên :
13/09/2012, 11:16
... additional hours each day
2
Objectives
•
List the advantages of wireless communications for
businesses
•
Discuss the challenges of wireless communications
7
Data Availability Around the Clock
•
Wireless ... and maintenance costs
Wireless Communications
Wireless Communications in
Business
11
Summary
•
Wireless technology can positively impact an
organization in many ways
•
Wireless technology faces ... 9
Voice over Wireless LAN (VoWLAN)
•
VoWLAN
–
Takes advantage of Voice over IP (VoIP) technology
–
Uses wireless infrastructure to carry voice and data
•
Wireless VoIP phones
–
Telephone...
- 11
- 299
- 0
MOB TME - Other aspects of wireless The layer transport - Bluetooth - Wifi Security
Ngày tải lên :
17/09/2012, 09:13
... the TCP segments. Why
in your opinion?
2 Other wireless technologies: Bluetooth and 802.11a
2.1 Bluetooth
Bluetooth is one of technologies allows setting up a WPAN (Wireless Personal Area
Network). ... the performances of
TCP in wireless environments in?
4. Another series of proposals consists of cutting the TCP connection into two between
the wire network and the wireless link? For this approach ... of five time
intervals to emit.
1
MOB TME - Other aspects of wireless
The layer transport - Bluetooth - Wifi Security
1. TCP and wireless environments
1. Remind the operation principle of the...
- 5
- 526
- 1