This paper presents the design and implementation of DOT, a flexible architecture for data transfer. This architecture separates content negotiation from the data transfer itself. Applications determine what data they need to send and then use a new transfer service to send it. This transfer service acts as a common interface between applications and the lower-level network layers, facilitating innovation both above and below. The transfer service frees developers from re-inventing transfer mechanisms in each new application. New transfer mechanisms, in turn, can be easily deployed without modifying existing applications.
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Although traditional firewalls have effectively prevented network-level attacks, most future attacks will be at the application level, where current security mechanisms are woefully inadequate. Application-level security vulnerabilities are inherent in a Web application’s code, regardless of the technology in which the application is implemented or the security of the Web server and backend database on which it is built. A recent advisory published by Internet Security Systems (see the “Internet Resources” sidebar, p. 44) claims that 11 widely deployed shopping cart applications are vulnerable to a simple attack that lets hackers pur- chase goods for much less than their listed price. Worryingly, the attack does not require particular technical skill; it suffices to save the shopping cart’s HTML confirmation form to disk, use a text editor to modify the price of the goods (stored in a hidden form field), and load the HTML form back into the browser.
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Peer-to-Peer programming (P2P) has in recent years become a widely explored research area. With the evolution of wireless technology such as mobile phones, the idea to bring these two technologies together gives a new dimension to P2P communication, collaboration and resource sharing.
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Serving multimedia content over the Internet with negligible delay remains a challenge. With the advent of Web 2.0, numerous video sharing sites using different storage and content delivery models have become popular. Yet, little is known about these models from a global perspective. Such an understanding is important for designing systems which can efficiently serve video content to users all over the world. In this paper, we analyze and compare the underlying distribution frameworks of three video sharing services – YouTube, Dailymotion and Metacafe – based on traces collected from measurements over a period of 23 days.
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Everybody who wants to install a web server database but does not know which software is necessary and how it is installed should benefit from reading this text. This text provides all information necessary to get a SQL database for a web server going; it does not go into any detail of CGI programming, nor does it explain the SQL database language. Excellent books are available on both topics, and it is the intention of this text to provide a working platform based on which a user can then study CGI programming and SQL. For getting a small scale SQL system running (not the notorious example of a major airline booking system, or space mission management database) it will be sufficient to have the software described in this text and the documentation accompanying it. The user manual of msql (a database introduced in this text) provides sufficient information on SQL for building your own database.
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“Web 2.0” has become a catch-all buzzword that people use to describe a wide range of online activities and applications, some of which the Pew Internet & American Life Project has been tracking for years. As researchers, we instinctively reach for our spreadsheets to see if there is evidence to inform the hype about any online trend. What follows is a short history of the phrase, along with some data to help frame the discussion.
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ML-500 Digital Photo Print System Workflow
Client Systems
These systems represent client systems in the ML-500 workflow. They are networked to the server that is connected to the ML-500 printer. If you will be using the ML-500 WINDOWS printer driver to print, the driver must be installed on the clients.
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Sepialine Print Tracking for Macintosh allows mixed network environments (PC & Mac) to deploy a unified print tracking system and maintain a single database for reporting and management.

To install this component, you’ll need access to your current Sepialine Database Server (or the target machine for your Sepialine Database Server) and all of the Mac workstations you wish to track.
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