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Microsoft PowerPoint - wlan-security-is-in-the-architectureThe History of WLAN Network. Architecture 2/2. Separation of Networks, Access Controllers, VPN. The first real architectural change to improve security
Karri Huhtanen, managing director WLAN Security is in the Architecture ICEFIN Workshop presentation 28.4.2004 2 © 28.4.2004 Arch Red Oy, Karri Huhtanen, managing director The History of WLAN Network Architecture 1/2 • Completely Open Networks – No WEP encryption, no MAC address lists, itant access – No problems unless the lack of encryption and access control is coidered a one • Closed and Hidden Networks – WEP encryption, no network name (ESSID) in beacon messages – Interoperability problems with the WEP key length and with the non- standard beacon messages (no ESSID) • Enter the Access Control – MAC address access control lists in the access points or centralised in the RADIUS database – Scalability becomes an issue as only few access points are capable of using RADIUS. Usability is sacrificed because of the security, but the security on the other hand is reasonably strong. 3 © 28.4.2004 Arch Red Oy, Karri Huhtanen, managing director The History of WLAN Network Architecture 2/2 • Separation of Networks, Access Controlle, VPN – The fit
Get PDFALEKS User's Guide for Higher Education MathematicsYou are about to discover one of the most powerful educational tools available for learning mathematics. Combining advanced learning technology with the flexibility of the Internet, the ALEKS system provides a “smart” interactive tutoring system with unmatched features and capabilities. Richly supplied with illustrations and reference materials, ALEKS constantly challenges you and supplies extensive feedback on what you have accomplished. ALEKS will always help you select the ideal topic to work on now.
That way you learn concepts in the order that’s best for you. ALEKS provides individualized, one-on-one instruction that fits your schedule. It is available wherever you access the Web.
ALEKS was developed with support from the National Science Foundation. It is based on a field of Mathematical Cognitive Science called “Knowledge Spaces.” The purpose of research in Knowledge Spaces is to model human knowledge of any subject for quick, precise assessment and efficient guided learning in interactive computer programs.
The ALEKS system is self-explanatory and includes online instructions and feedback. This booklet contains basic information to help you begin using ALEKS. Instructors using ALEKS with their courses are provided with an Instructor’s Manual containing complete information on the system’s operation. They should be able to answer any questions beyond those dealt with in these pages.
NOTE. ALEKS is designed for use without help from a manual. Your instructor will assist you in registering with the system and beginning to use it. If questions arise, or if you want to learn more about ALEKS, use this Guide. It is intended as aWeb 2.0 Security and PrivacyWeb 2.0 – user-generated content, rich user interfaces and co-operative, dynamic services – has also brought with it a new and extremely virulent breed of ‘Malware 2.0’. A key motivation for this study is the link between Web 2.0 and the increase in ‘drive-by’ malware infections requiring no intervention or awareness on the part of the user. To give some idea of the threat posed, a Scansafe report analysing malware trends reports that risks from compromised websites increased 407% in the year to May 2008.
One of the most important sources of vulnerabilities in Web 2.0 is the inadequacy of access and authorisation frameworks used in Web 2.0 environments. In particular, this report highlights problems in policy frameworks governing the separation of control between web applications. These centre on the ‘same-origin’ policy, which sandboxes web applications coming from different domains, and the cases where this policy is either deliberately relaxed or circumvented for malicious purposes. Problems in access and authorisation frameworks often stem from the difficulty in finding a balance between allowing enough freedom for Web 2.0 applications to function and providing adequate security.
Web 2.0 has also brought a sea-change in the way knowledge and information is managed. One page contains content and even executable code from multiple sources including end-users, and information may be syndicated (eg, using RSS) and altered many times from its original source.
This means in particular that:
• The increased opportunities for contributing content also provide more opportunities to inject malicious code leading to many vulnerabilities in theIBM ThinkPad X20 X21 Users Guide pdfGetting Service With the original purchase of an IBM hardware product, you have access to extensive support under warranty. Be sure to retain your proof of purchase to obtain warranty service. For hardware product assistance covered under the terms of the IBM Statement of Limited Warranty, you may call the IBM Personal Com- puter HelpCenter (1-800-772-2227 in the U.S.) The following services are available during the warranty period: Problem determination:Trained personnel are available to assist you in determining whether you have a hardware problem and deciding what action is necessary to fix the problem.
IBM hardware repair: If the problem is determined to be caused by IBM hardware under warranty, trained service personnel are available to provide service. Engineering change management: Occasionally, changes may e required after a product has been sold. IBM or, if authorized by IBM, your reseller will make Engineering Changes (ECs) available that apply to your hardware. To prepare for your call, fill in the blanks of the recording sheets (refer to “Recording sheet” on page 52) with information about your computer. If possible, be at your computer when you call. The following items are not covered: Replacement or use of non-IBM parts or nonwarranted IBM parts Configuration of BIOS as part of an installation to device drivers Installation and maintenance of network operating systems (NOS) Installation and maintenance of application programs
Download IBM ThinkPad X20 X21 Users Guide pdfHack Proofing Your Wireless Network PDFWhen the concept of a network without wires was first suggested more than two decades ago, it sparked the imagination of scientists, product vendors, and users around the globe eager for the convenience and flexibility of a free roaming conection. Unfortunately, as the variety of wireless solutions began to emerge, anticipation turned to disappointment.The first wave of solutions proved inadequate for the networking, portability, and security needs of a changing IT environment. While this has largely continued to be the case throughout the 1990s with most cell-based and office local area network (LAN)-based wireless technology deployments, great strides have been made specifically over the last two years to address the fundamental concerns impeding the full acceptance of wireless net- working in the mainstream of corporate IT departments and the small office.
In this chapter, you will learn about the technology that is available today for wireless data networking and what tomorrow’s wireless technologies have to offer.We will cover office LAN wireless solutions including 802.11, its subgroups (802.11b, 802.11a, 802.11g) and HomeRF, cellular-based wireless data solutions including the Wireless Application Protocol (WAP) and i-Mode and the network infrastructures supporting them (in particular 2G, 2.5G, and 3G), and finally, 802.15 Personal Area Network (PAN) solutions such as Bluetooth. In addition, we will review some of the new standards being developed to create wireless metropolitan area networks (WMANs) and other wireless data transmission solu- tions that are being proposed for commercial application.
Source: www.sauronz.com
Download Hack Proofing Your Wireless Network PDFSVG-Paint: Java Server Faces, Facelets and Web 2.0 for SVGJava Server Faces (JSF) is a MVC (Model View Control) framework for (dynamic) Web-Pages. Facelets is using x-Html pages and Templates to replace JSP (Java Server Pages) for Java Server Faces. It completes the picture and creates a REAL MCV concept (One could use java code within JSP pages). This document tries to explain how JSF with Facelets works, and give a few short directions on how to get it to work. It will also cover how Web 2.0 can be used, and what this means for SVG (Scalable Vector Graphics). All Example-Code within this document is taken from the SVG-Paint Project.
SVG-Paint is a web-based painting program based on SVG and Javascript. It features serveral pre-defined forms as rectangular, circle and line, as well as the possibility to draw free-hand. Drawn objects can be changed, deleted and - in the case of the pre-defined forms - moved and zoomed. Paintings can be saved and loaded. To understand how SVG-Paint works, one first has to understand the techniques used for creating it, which will be presented below.
Java Server Faces with Facelets
MVC
The Model View Control concept tries to seperate the code into 3 layers, so each part of it can be changed easily without affecting the others:
• Model. Here resides everything that actually does the work - all the functions, and all the data structures.
• View. This layer is the one the user can see - it displays the results of the program.
• Control. This last layer controls the workflow of theGeneric HTML Form Processor: PHP script to save Web-collected data into a MySQL databaseThe customizable PHP script Generic HTML Form Processor is intended to assist researchers and students in quickly setting up surveys and experiments that can be administered via the Web. This script relieves researchers from the burdens of writing new cGi scripts and building databases for each Web study. Generic HTML Form Processor processes any syntactically correct HTML form input and saves it into a dynamically created open-source database. We describe five modes for usage of the script that allow increasing functionality but require increasing levels of knowledge of PHP and Web servers: The first two modes require no previous knowledge, and the fifth requires PHP programming expertise. use of Generic HTML Form Processor is free for academic purposes, and its Web address is www.goeritz.net/brmic.
There are other advantages of Web research. On the Web, people can be tested at any time and place, laboratory rooms or physically present experimenters are not necessary (so experimenter effects remain constant), and automated data handling reduces both the labor and error of data coding and entry (Birnbaum & Reips, 2005; Göritz & Schumacher, 2000). In addition, the Web method allows one to collect large samples inexpensively, which makes it possible to draw clear conclusions and to check their generality to different subsamples tested (Birnbaum, 1999; Reips, 2002).
An example of an HTML Web form is given in Birnbaum (2000). Such an HTML page can be placed on a server, where the participant can view it and fill in answers by typing in information and clicking onAllplan 2008 Basics TutorialThis tutorial is designed to give you a quick and practical introduction to all the important design and modification tools in Allplan 2008. It contains several examples in the form of exercises. These are used to show how to design in 2D and how to get started in 3D modeling.
This guide assumes that you are familiar with and have a working knowledge of Windows and Allplan 2008. These essentials are described in the manual which comes with Allplan 2008. In particular, you should know
• how to start and exit Allplan 2008
• how to create projects
• how to open and close drawing files and how set drawing files to edit or reference mode
• how to control the on-screen display; in particular how to refresh
your drawing and how to zoom in on details You should work through the exercises in the given sequence as tools that are presented in more detail in the earlier exercises are only referred to by name in later exercises.
Download pdf Allplan 2008 Basics TutorialWriting CGI scripts in TclCGI scripts enable dynamic generation of HTML pages. This paper describes how to write CGI scripts using Tcl. Many people use Tcl for this purpose already but in an ad hoc way and without realizing many of the more non-obvious benefits. This paper reviews these benefits and provides a framework and examples. Canonical solutions to HTML quoting problems are presented. This paper also discusses using Tcl for the generation of different formats from the same document. As an example, FAQ generation in both text and HTML are described.
CGI scripts have many advantages over statically written HTML. For example, CGI scripts can automatically adapt to changes in the environment, such as the date in the previous example. CGI scripts can run programs, include and process data, and just about anything that can be done in traditional programs.
CGI scripts are particularly worthwhile in handling Web forms. Web forms allow users to enter data into a page and then send the results to a Web server for processing. The Web form itself does not have to be generated by a CGI script. However, data entered by a user may require a customized response. Therefore, a dynamically generated response via a CGI script is appropriate. Since the response may produce another form, it is common to generate forms dynamically as well as their responses.
Download pdf Writing CGI scripts in TclSilverlight 2 Hands-on LabsInstall the following software components on Windows Vista machine with at least 2GB RAM:
1. Visual Studio 2008
2. ASP.NET Extensions preview (http://asp.net/downloads/3.5-extensions/)
3. Silverlight Developer Tools (http://silverlight.net/GetStarted)
a. Silverlight 2 developer runtime
b. Silverlight 2 SDK
c. Silverlight 2 templates for Visual Studio 2008
d. Expression Blend 2 SP1
Exercise 1: Hello World with SL 2
1. Create a new solution and name it SL2Demo
2. Create SL2Hello project and add a new test web site SL2Hello_Web
Download pdf Silverlight 2 Hands-on Labs
