Appropriate for all introductory-to-intermediate courses in computer networking, the Internet, or Internet applications; students need no background in networking, operating systems, or advanced mathematics. Leading networking authority Douglas Comer presents a wide-ranging, self-contained tour of the concepts, principles, and technologies that enable today’s Internet to support applications ranging from web browsing to telephony and multimedia. Comer begins by illuminating the applications and facilities offered by today’s Internet. Next, he systematically introduces the underlying network technologies and protocols that make them possible. With these concepts and technologies established, he introduces several of the most important contemporary issues faced by network implementers and managers, including quality of service, Internet telephony, multimedia, network security, and network management. Comer has carefully designed this book to support both top-down and bottom-up teaching approaches. Students need no background in operating systems, and no sophisticated math: Comer relies throughout on figures, drawings, examples, and analogies, not mathematical proofs. Teaching and Learning Experience This program will provide a better teaching and learning experience—for you and your students. Broad Coverage of Key Concepts and Principles, Presented in a Technology-independent Fashion: Comer focuses on imparting knowledge that students will need regardless of which technologies emerge or become obsolete. Flexible Organization that Supports both Top-down and Bottom-up Teaching Approaches: Chapters may be sequenced to accommodate a wide variety of course needs and preferences. An Accessible Presentation that Resonates with Students: Comer relies throughout on figures, drawings, examples, and analogies, not mathematical proofs. Keep Your Course Current: Content is refreshed to provide the most up-to-date information on new technologies for your course.
Leading networking authority Douglas Comer presents a wide-ranging, self-contained tour of the concepts, principles, and technologies that enable today's Internet to support applications ranging from web browsing to telephony and multimedia. Comer begins by illuminating the applications and facilities offered by today's Internet. Next, he systematically introduces the underlying network technologies and protocols that make them possible. With these concepts and technologies established, he introduces several of the most important contemporary issues faced by network implementers and managers, including quality of service, Internet telephony, multimedia, network security, and network management. Comer has carefully designed this book to support both top-down and bottom-up teaching approaches. Students need no background in operating systems, and no sophisticated math: Comer relies throughout on figures, drawings, examples, and analogies, not mathematical proofs.
TCP/IP - das Transfer Control Protocol/Internet Protocol ist der Schlüssel zum Internet. Es regelt den Ablauf der Kommunikation von Computern und Netzwerken rund um die Welt. Candace Leiden und Marshall Wilensky entzaubern die verborgene Welt hinter dem Web und zeigen Ihnen, wie logisch die Protokolle im Internet aufgebaut sind. Lernen Sie, wie man TCP/IP installiert, es einrichtet, Fehler daraus beseitigt und sicher macht. Sie erfahren: * Wie Sie TCP/IP bei Windows, Linux und Mac konfigurieren * Welche Sorten von Netzwerken es gibt * Wie Sie mit POP uns IMAP umgehen * Was hosts files sind * Wie Sie Sicherheitsanwendungen implementieren Auf der CD: * Browser: Mozilla * Betriebssysteme: En Garde Linux * Messaging Tools: iIChat Logger CU-SeeMe * Netzwerkanwendungen: AdKiller Daemon FTP Voyager * Zusatzinformationen: CERT FAQ, Techtips, Modules and Practices" * Sicherheitsanwendungen: Entunnel (VanDyke Software, Inc.)
In der 12., ?berarbeiteten und aktualisierten Auflage des Bestsellers finden Sie alles, was Sie zum Internet-Einstieg brauchen: alle Informationen zum Internetzugang, dem Unterschied zwischen WWW, Usenet und anderen Diensten, Chatten, Bloggen, E-Mail, Internet-Telefonie, RSS-Feeds, Podcasting, sozialen Netzwerken und vielem mehr. Die Autoren zeigen Ihnen, wie Sie mit dem Windows Internet Explorer 8 und Google Chrome ins Internet kommen und wie Sie mit Windows Mail, dem Nachfolger von Outlook Express, E-Mails verschicken. Auch die Sicherheitsvorkehrungen f?r ein sorgloses Surfen, Antivirensoftware und Firewalls werden nicht vergessen.
This book provides professionals with a fresh and comprehensive survey of the entire field of computer networks and Internet technology—including an up-to-date report of leading-edge technologies. TCP/IP, network security, Internet protocols, integrated and differentiated services, TCP performance, congestion in data networks, network management, and more. For programmers, systems engineers, network designers, and others involved in the design of data communications and networking products; product marketing personnel; and data processing personnel who want up-to-date coverage of a broad survey of topics in networking, Internet technology and protocols, and standards.
Bereits in seinen ersten Artikeln über die NSA-Affäre brachte Glenn Greenwald das ganze Ausmaß der Massenüberwachung im digitalen Zeitalter ans Licht. Seine Berichterstattung, für die er mit dem Pulitzer-Preis ausgezeichnet wurde, löste international ein politisches Erdbeben aus. In seinem Buch deckt Greenwald anhand einer Fülle von brisanten Geheimdokumenten aus dem Archiv des Whistleblowers Edward Snowden die illegalen Praktiken der amerikanischen Geheimdienste auf. Alles und jeder wird ausgespäht, die Bevölkerung steht unter Kollektivverdacht. Meinungsfreiheit wird im Namen der Sicherheit unterdrückt, und es gibt keine Privatsphäre mehr – nirgends.
Computer Networks: A Systems Approach, Fifth Edition, explores the key principles of computer networking, with examples drawn from the real world of network and protocol design. Using the Internet as the primary example, this best-selling and classic textbook explains various protocols and networking technologies. The systems-oriented approach encourages students to think about how individual network components fit into a larger, complex system of interactions. This book has a completely updated content with expanded coverage of the topics of utmost importance to networking professionals and students, including P2P, wireless, network security, and network applications such as e-mail and the Web, IP telephony and video streaming, and peer-to-peer file sharing. There is now increased focus on application layer issues where innovative and exciting research and design is currently the center of attention. Other topics include network design and architecture; the ways users can connect to a network; the concepts of switching, routing, and internetworking; end-to-end protocols; congestion control and resource allocation; and end-to-end data. Each chapter includes a problem statement, which introduces issues to be examined; shaded sidebars that elaborate on a topic or introduce a related advanced topic; What’s Next? discussions that deal with emerging issues in research, the commercial world, or society; and exercises. This book is written for graduate or upper-division undergraduate classes in computer networking. It will also be useful for industry professionals retraining for network-related assignments, as well as for network practitioners seeking to understand the workings of network protocols and the big picture of networking. Completely updated content with expanded coverage of the topics of utmost importance to networking professionals and students, including P2P, wireless, security, and applications Increased focus on application layer issues where innovative and exciting research and design is currently the center of attention Free downloadable network simulation software and lab experiments manual available
In its 4th edition, this book remains focused on increasing public awareness of nature and motives of cyber vandalism, the weaknesses inherent in cyberspace infrastructure, and the means available to protect ourselves and our society. The new addition aims to integrate security education and awareness with morality and ethics. In all, the security of information in general and of computer networks in particular, on which our national critical infrastructure and, indeed, our lives depend, is based squarely on the individuals who build the hardware and design and develop the software that run the networks that store our vital information. Addressing security issues with ever-growing social networks are two new chapters: "Security of Mobile Systems" and "Security in the Cloud Infrastructure."
A comprehensive survey of computer network security concepts, methods, and practices. This authoritative volume provides an optimal description of the principles and applications of computer network security in particular, and cyberspace security in general. The book is thematically divided into three segments: Part I describes the operation and security conditions surrounding computer networks; Part II builds from there and exposes readers to the prevailing security situation based on a constant security threat; and Part III - the core - presents readers with most of the best practices and solutions currently in use. It is intended as both a teaching tool and reference. This broad-ranging text/reference comprehensively surveys computer network security concepts, methods, and practices and covers network security tools, policies, and administrative goals in an integrated manner. It is an essential security resource for undergraduate or graduate study, practitioners in networks, and professionals who develop and maintain secure computer network systems.
Updated annually to keep up with the increasingly fast pace of change in the field, the Information Security Management Handbook is the single most comprehensive and up-to-date resource on information security (IS) and assurance. Facilitating the up-to-date understanding required of all IS professionals, the Information Security Management Handbook, Sixth Edition, Volume 5 reflects the latest issues in information security and the CISSP® Common Body of Knowledge (CBK®). This edition updates the benchmark Volume 1 with a wealth of new information to help IS professionals address the challenges created by complex technologies and escalating threats to information security. Topics covered include chapters related to access control, physical security, cryptography, application security, operations security, and business continuity and disaster recovery planning. The updated edition of this bestselling reference provides cutting-edge reporting on mobile device security, adaptive threat defense, Web 2.0, virtualization, data leakage, governance, and compliance. Also available in a fully searchable CD-ROM format, it supplies you with the tools and understanding to stay one step ahead of evolving threats and ever-changing standards and regulations.
Today's enterprise cannot effectively function without a network, and today's enterprise network is almost always based on LAN technology. In a few short years, LANs have become an essential element of today's business environment. This time in the spotlight, while well deserved, has not come without a price. Businesses now insist that LANs deliver vast and ever-increasing quantities of business-critical information and that they do it efficiently, flawlessly, without fail, and most of all, securely. Today's network managers must consistently deliver this level of performance, and must do so while keeping up with ever changing, ever increasing demands without missing a beat. At the same time, today's IT managers must deliver business-critical information systems in an environment that has undergone radical paradigm shifts in such widely varied fields as computer architecture, operating systems, application development, and security. The Local Area Networks Handbook focuses on this collective environment, in which networking and information technology work together to create LAN-based enterprise networks. Topics have been selected and organized with this in mind, providing both depth and breadth of coverage. The handbook will provide you not only an understanding of how LANs work and how to go about selecting and implementing LAN products, but also of how to leverage LAN capabilities for the benefit of your enterprise.
Manuel Castells gibt detailliert und faszinierend Aufschluss über das "Woher" und - soweit aus der aktuellen Situation erkennbar - "Wohin" des Internet und, damit verbunden, der neuen Netzwerkgesellschaft, deren zentrales Kommunikationsmedium das Internet ist. Das www gibt es seit weniger als zehn Jahren. Die allgemeine und kommerzielle Akzeptanz des Internet ist außergewöhnlich - ermöglicht und initiiert Veränderungen in allen individuellen und gesellschaftlichen Bereichen. Es gibt neue Kommunikationssysteme, neue Branchen, Neue Medien und Informationskanäle, neue politische und kulturelle Ausdrucksformen, neue Formen des Lehrens und Lernens und neue Gemeinschaften. Was aber wissen wir schon über das Internet, seine Geschichte, seine Technologie, seine Kultur und seine Applikationen? Welche Folgen ergeben sich für Wirtschaft und Gesellschaft? Die Verbreitung des Internet ging so schnell vonstatten, schneller als die Möglichkeiten sorgfältiger empirisch begründeter Analyse. Manuel Castells wird von vielen als der führende Analytiker des Informationszeitalters und der Netzwerkgesellschaft gesehen. Über seine akademische Arbeit hinaus arbeitet er als Berater auf höchstem internationalen Niveau. In diesem kleinen Buch bringt er seine Erfahrung und sein Wissen zur Internet-Galaxie zusammen: Wie hat alles angefangen? Aus welchen zusammen arbeitenden oder konkurrierenden Kulturen besteht das Internet? Wie werden neue Unternehmen dadurch organisiert, wie werden alte Unternehmen davon beeinflusst? Gibt es die "digitale Wasserscheide"? Welchen Einfluss hat das Internet auf soziale und kulturelle Organisationsformen? Wie werden politische Teilhabe, politische Kommunikation, das städtische Leben beeinflusst? Dies sind nur einige Fragen, die in diesem Buch aufgegriffen werden. Castells gibt aber weder Prognosen ab, noch liefert er Patentrezepte - er gibt eine erhellende, auf empirischen Daten beruhende Analyse der aktuellen Situation und hilft uns zu verstehen, wie das
Mochtest du Elektronik-Grundwissen auf eine unterhaltsame und geschmeidige Weise lernen? Mit Make: Elektronik tauchst du sofort in die faszinierende Welt der Elektronik ein. Entdecke die Elektronik und verstehe ihre Gesetze durch beeindruckende Experimente: Zuerst baust du etwas zusammen, dann erst kommt die Theorie. Vom Einfachen zum Komplexen: Du beginnst mit einfachen Anwendungen und gehst dann zugig uber zu immer komplexeren Projekten: vom einfachen Schaltkreis zum Integrierten Schaltkreis (IC), vom simplen Alarmsignal zum programmierbaren Mikrocontroller. Schritt-fur-Schritt-Anleitungen und uber 500 farbige Abbildungen und Fotos helfen dir dabei, Elektronik einzusetzen -- und zu verstehen.
OSI, TCP/IP and other networks models, Examples of networks : Novell networks, Arpanet, Internet, Network topologies WAN, LAN, MAN.Physical LayerTransmission media copper, Twisted pair wireless, Switching and encoding asynchronous communications; Narrow band, Broad band ISDN and ATM.Data Link LayerDesign issues, framing, error detection and correction, CRC, Elementary protocol-stop and wait Sliding window, Slip, Data link layer in HDLC, Internet, ATM.Medium Access SublayerALOHA, MAC addresses, Carrier sense multiple access. IEEE 802.X Standard ethernet, Wireless LANs, Bridges.Network LayerVirtual circuit and datagram subnets - Routing algorithm shortest path routing, Flooding, Hierarchical routing, Broadcast, Multicast, Distance vector routing.Dynamic routing - Broadcast routing, Rotary for mobility. Congestion, Control algorithms - General principles of congestion prevention policies. Internet working. The network layer in the Internet and in the ATM networks.Transport LayerTransport services, Connection management, TCP and UDP protocols; ATM AAL layer protocol.Application LayerNetwork security, Domain name system, SNMP, Electronic mail; the World WEB, Multimedia.

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