Just like the industrial society of the last century depended on natural resources, today’s society depends on information and its exchange. Staab and Stuckenschmidt structured the selected contributions into four parts: Part I, “Data Storage and Access”, prepares the semantic foundation, i.e. data modelling and querying in a flexible and yet scalable manner. These foundations allow for dealing with the organization of information at the individual peers. Part II, “Querying the Network”, considers the routing of queries, as well as continuous queries and personalized queries under the conditions of the permanently changing topological structure of a peer-to-peer network. Part III, “Semantic Integration”, deals with the mapping of heterogeneous data representations. Finally Part IV, “Methodology and Systems”, reports experiences from case studies and sample applications. The overall result is a state-of-the-art description of the potential of Semantic Web and peer-to-peer technologies for information sharing and knowledge management when applied jointly.

Running IPv6 explains how to install and operate the IPv6 protocol for Windows XP, Mac OS X, FreeBSD, Red Hat Linux, and Cisco routers. The book also covers DNS and BIND, Zebra, Apache 2, and Sendmail. While IPv4 uses 32-bit addresses, IPv6 addresses are 128 bits long, and allow for more unique addresses. While the adoption of IPv6 won�t be immediate, it is necessary.

Running IPv6 compares and contrasts IPv6 to IPv4, and discusses the advantages and disadvantages of each. Because most major software and hardware vendors have (or will) adopt IPv6, the focus of this book is to leverage your existing knowledge of IPv4 and to help you apply that knowledge to the newer protocol.

Pro Apache Ant is ideal for Java developers who need to use the leading open source build tool out there for development and project management. It is organized around chronological tasks instead of alphabetical functions, using a sample application throughout the set-up, from calling database scripts to unit testing.

Practical examples are used at every stage and each task includes a concrete example. The configuration files are XML based, so there’s no need for you to write shell commands. Each task is run by an object that implements a particular task interface. And if you really need to execute a shell command, Ant has a task that allows different commands based on the OS.

OpenPGP is the most widely used email encryption standard in the world. It is based on PGP (Pretty Good Privacy) as originally developed by Phil Zimmermann. The OpenPGP protocol defines standard formats for encrypted messages, signatures, and certificates for exchanging public keys.

PGP & GPG is an easy-to read, informal tutorial for implementing electronic privacy on the cheap using the standard tools of the email privacy field - commercial PGP and non-commercial GnuPG (GPG). The book shows how to integrate these OpenPGP implementations into the most common email clients and how to use PGP and GPG in daily email correspondence to both send and receive encrypted email.

The PGP & GPG book is written for the moderately skilled computer user who is unfamiliar with public key cryptography but who is nevertheless interested in guarding their email privacy. Lucas’s trademark informal and relaxed tone makes public key cryptography as simple and clear as possible, so that any reasonably savvy computer user can understand it.

Integrating concepts from multiple theoretical disciplines and detailed analyses of the evolution of Internet-related innovations (including computer networking, the World Wide Web and the Linux open source operating system), this book develops foundations for a new theoretical and practicalunderstanding of innovation. It covers topics ranging from fashion to history of art, and includes the most detailed analysis of the open source development model so far published.