IPv6 Essentials

Integrating IPv6 into Your IPv4 Network

Author: Silvia Hagen

Publisher: "O'Reilly Media, Inc."

ISBN: 144933525X

Category: Computers

Page: 414

View: 944

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If your organization is gearing up for IPv6, this in-depth book provides the practical information and guidance you need to plan for, design, and implement this vastly improved protocol. Author Silvia Hagen takes system and network administrators, engineers, and network designers through the technical details of IPv6 features and functions, and provides options for those who need to integrate IPv6 with their current IPv4 infrastructure. The flood of Internet-enabled devices has made migrating to IPv6 a paramount concern worldwide. In this updated edition, Hagen distills more than ten years of studying, working with, and consulting with enterprises on IPv6. It’s the only book of its kind. IPv6 Essentials covers: Address architecture, header structure, and the ICMPv6 message format IPv6 mechanisms such as Neighbor Discovery, Stateless Address autoconfiguration, and Duplicate Address detection Network-related aspects and services: Layer 2 support, Upper Layer Protocols, and Checksums IPv6 security: general practices, IPSec basics, IPv6 security elements, and enterprise security models Transitioning to IPv6: dual-stack operation, tunneling, and translation techniques Mobile IPv6: technology for a new generation of mobile services Planning options, integration scenarios, address plan, best practices, and dos and don’ts

Kuckucksei

Die Jagd auf die deutschen Hacker, die das Pentagon knackten

Author: Clifford Stoll

Publisher: S. Fischer Verlag

ISBN: 3105607242

Category: Fiction

Page: 454

View: 2764

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›Kuckucksei‹ schildert bis ins Detail die hochdramatische Jagd nach deutschen Hackern, die in amerikanische Computernetze eingedrungen waren. Es ist der autobiografische Report eines amerikanischen Computercracks, der leidenschaftlich für die Sicherheit der Datennetze kämpft. (Dieser Text bezieht sich auf eine frühere Ausgabe.)

IPv6 for Enterprise Networks

Author: Shannon McFarland,Muninder Sambi,Nikhil Sharma,Sanjay Hooda

Publisher: Pearson Education

ISBN: 9781587142314

Category: Computers

Page: 504

View: 6785

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IPv6 for Enterprise Networks The practical guide to deploying IPv6 in campus, WAN/branch, data center, and virtualized environments Shannon McFarland, CCIE® No. 5245 Muninder Sambi, CCIE No. 13915 Nikhil Sharma, CCIE No. 21273 Sanjay Hooda, CCIE No. 11737 IPv6 for Enterprise Networks brings together all the information you need to successfully deploy IPv6 in any campus, WAN/branch, data center, or virtualized environment. Four leading Cisco IPv6 experts present a practical approach to organizing and executing your large-scale IPv6 implementation. They show how IPv6 affects existing network designs, describe common IPv4/IPv6 coexistence mechanisms, guide you in planning, and present validated configuration examples for building labs, pilots, and production networks. The authors first review some of the drivers behind the acceleration of IPv6 deployment in the enterprise. Next, they introduce powerful new IPv6 services for routing, QoS, multicast, and management, comparing them with familiar IPv4 features and behavior. Finally, they translate IPv6 concepts into usable configurations. Up-to-date and practical, IPv6 for Enterprise Networks is an indispensable resource for every network engineer, architect, manager, and consultant who must evaluate, plan, migrate to, or manage IPv6 networks. Shannon McFarland, CCIE No. 5245, is a Corporate Consulting Engineer for Cisco serving as a technical consultant for enterprise IPv6 deployment and data center design with a focus on application deployment and virtual desktop infrastructure. For more than 16 years, he has worked on large-scale enterprise campus, WAN/branch, and data center network design and optimization. For more than a decade, he has spoken at IPv6 events worldwide, including Cisco Live. Muninder Sambi, CCIE No. 13915, is a Product Line Manager for Cisco Catalyst 4500/4900 series platform, is a core member of the Cisco IPv6 development council, and a key participant in IETF’s IPv6 areas of focus. Nikhil Sharma, CCIE No. 21273, is a Technical Marketing Engineer at Cisco Systems where he is responsible for defining new features for both hardware and software for the Catalyst 4500 product line. Sanjay Hooda, CCIE No. 11737, a Technical Leader at Cisco, works with embedded systems, and helps to define new product architectures. His current areas of focus include high availability and messaging in large-scale distributed switching systems. n Identify how IPv6 affects enterprises n Understand IPv6 services and the IPv6 features that make them possible n Review the most common tranisition mechanisms including dual-stack (IPv4/IPv6) networks, IPv6 over IPv4 tunnels, and IPv6 over MPLS n Create IPv6 network designs that reflect proven principles of modularity, hierarchy, and resiliency n Select the best implementation options for your organization n Build IPv6 lab environments n Configure IPv6 step-by-step in campus, WAN/branch, and data center networks n Integrate production-quality IPv6 services into IPv4 networks n Implement virtualized IPv6 networks n Deploy IPv6 for remote access n Manage IPv6 networks efficiently and cost-effectively This book is part of the Networking Technology Series from Cisco Press®, which offers networking professionals valuable information for constructing efficient networks, understanding new technologies, and building successful careers.

DNS & BIND Kochbuch

Author: Cricket Liu

Publisher: O'Reilly Germany

ISBN: 9783897213524

Category: Computer network protocols

Page: 239

View: 777

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Fundamentals of Communications and Networking

Author: Michael G. Solomon,David Kim

Publisher: Jones & Bartlett Publishers

ISBN: 1449649173

Category: Computers

Page: 484

View: 7807

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Networks have long been regarded as methods to connect resources. While this is still that case, today’s networks are required to support an increasing array of real-time communication methods. Video chat, real-time messaging, and always-connected resources put demands on networks that were previously unimagined. Fundamentals of Communications and Networking helps readers understand today’s networks and the way they support the evolving requirements of different types of organizations. It covers the critical issues of designing a network that will meet an organization’s performance needs and discusses how businesses use networks to solve business problems. Using examples and exercises, this book incorporates hands-on activities to prepare readers to proficiently understand and design modern networks and their requirements.

LDAP System Administration

Author: Gerald Carter

Publisher: O'Reilly Media

ISBN: 9781565924918

Category: Computers

Page: 308

View: 3536

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Be more productive and make your life easier. That's what LDAP System Administration is all about. System administrators often spend a great deal of time managing configuration information located on many different machines: usernames, passwords, printer configurations, email client configurations, and network filesystem configurations, to name a few. LDAPv3 provides tools for centralizing all of the configuration information and placing it under your control. Rather than maintaining several administrative databases (NIS, Active Directory, Samba, and NFS configuration files), you can make changes in only one place and have all your systems immediately "see" the updated information. Practically platform independent, this book uses the widely available, open source OpenLDAP 2 directory server as a premise for examples, showing you how to use it to help you manage your configuration information effectively and securely. OpenLDAP 2 ships with most Linux® distributions and Mac OS® X, and can be easily downloaded for most Unix-based systems. After introducing the workings of a directory service and the LDAP protocol, all aspects of building and installing OpenLDAP, plus key ancillary packages like SASL and OpenSSL, this book discusses: Configuration and access control Distributed directories; replication and referral Using OpenLDAP to replace NIS Using OpenLDAP to manage email configurations Using LDAP for abstraction with FTP and HTTP servers, Samba, and Radius Interoperating with different LDAP servers, including Active Directory Programming using Net::LDAP If you want to be a master of your domain, LDAP System Administration will help you get up and running quickly regardless of which LDAP version you use. After reading this book, even with no previous LDAP experience, you'll be able to integrate a directory server into essential network services such as mail, DNS, HTTP, and SMB/CIFS.

DNS und Bind im IPv6 kurz & gut

Author: Cricket Liu

Publisher: O'Reilly Germany

ISBN: 3868991816

Category: Computers

Page: 80

View: 7373

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DNS & BIND im IPv6 - kurz & gut enthält das ganze Material zu IPv6. Es behandelt, wie DNS erweitert wurde, um IPv6-Adressen gerecht zu werden, sowohl für das Forward-Mapping als auch für das Reverse-Mapping. Es beschreibt, wie man einen BIND-Nameserver so konfiguriert, dass er in einem IPv6-Netzwerk läuft, und wie man Probleme mit dem IPv6-Forward- und Reverse-Mapping behebt. Es behandelt sogar DNS64, eine DNS-basierte Übergangstechnik, die – zusammen mit einer Partnertechnik namens NAT64 – Inseln aus Hosts, die nur IPv6 sprechen, dabei helfen, mit IPv4-Ressourcen zu kommunizieren. Dieses Buch beschreibt, wie IPv6 in Netzwerken mit DNS unterstützt wird. Es behandelt die zugrundeliegende Theorie, einschließlich der Struktur und der Repräsentation der IPv6-Adressen, der A-, M- und O-Flags in Router-Advertisements und was sie für DNS bedeuten, sowie die Syntax der AAAA-Records und der PTR-Records in der ip6.arpa-Reverse-Mapping-Zone und die Syntax und Semantik der Konfiguration eines BIND-Nameservers. DNS & BIND im IPv6 - kurz & gut geht davon aus, dass Sie die grundlegende DNS-Theorie und BIND-Konfiguration verstehen. Es erklärt nicht, was ein Resource Record ist, wie man eine Zonendatendatei bearbeitet, noch erinnert es Sie daran, dass Sie die Seriennummer des SOA-Records einer Zone erhöhen müssen, bevor Sie ihn neu laden. Das Buch geht aber nicht davon aus, dass Sie irgendetwas über IPv6 wissen. Vielmehr erläutert es die Motivation für den Wechsel zu IPv6 und beschreibt die Struktur und die Darstellung von IPv6-Adressen und wie man BIND-Nameserver für den Betrieb in IPv6-Netzwerken konfiguriert.

TCP/IP Für Dummies

Author: Candace Leiden,Marshall Wilensky

Publisher: N.A

ISBN: 9783527701094

Category:

Page: 432

View: 8045

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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.)

IPv6 Fundamentals

A Straightforward Approach to Understanding IPv6

Author: Rick Graziani

Publisher: Cisco Press

ISBN: 0134670086

Category: Computers

Page: 688

View: 2874

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Organizations are increasingly transitioning to IPv6, the next generation protocol for defining how devices of all kinds communicate over networks. Now fully updated, IPv6 Fundamentals offers a thorough, friendly, and easy-to-understand introduction to the knowledge and skills you need to deploy and operate IPv6 networks. Leading networking instructor Rick Graziani explains all the basics simply and clearly, step-by-step, providing all the details you’ll need to succeed. You’ll learn why IPv6 is necessary, how it was created, how it works, and how it has become the protocol of choice in environments ranging from cloud to mobile and IoT. Graziani thoroughly introduces IPv6 addressing, configuration options, and routing protocols, including EIGRP for IPv6, and OSPFv3 (traditional configuration and with address families). Building on this coverage, he then includes more in-depth information involving these protocols and processes. This edition contains a completely revamped discussion of deploying IPv6 in your network, including IPv6/IPv4 integration, dynamic address allocation, and understanding IPv6 from the perspective of the network and host. You’ll also find improved coverage of key topics such as Stateless Address Autoconfiguration (SLAAC), DHCPv6, and the advantages of the solicited node multicast address. Throughout, Graziani presents command syntax for Cisco IOS, Windows, Linux, and Mac OS, as well as many examples, diagrams, configuration tips, and updated links to white papers and official RFCs for even deeper understanding. Learn how IPv6 supports modern networks encompassing the cloud, mobile, IoT, and gaming devices Compare IPv6 with IPv4 to see what has changed and what hasn’t Understand and represent IPv6 addresses for unicast, multicast, and anycast environments Master all facets of dynamic IPv6 address allocation with SLAAC, stateless DHCPv6, and stateful DHCPv6 Understand all the features of deploying IPv6 addresses in the network including temporary addresses and the privacy extension Improve operations by leveraging major enhancements built into ICMPv6 and ICMPv6 Neighbor Discovery Protocol Configure IPv6 addressing and Access Control Lists using a common topology Implement routing of IPv6 packets via static routing, EIGRP for IPv6, and OSPFv3 Walk step-by-step through deploying IPv6 in existing networks, and coexisting with or transitioning from IPv4

IPv4 IPv6-Migration

Author: Martin Schädler,Martin Sch Dler

Publisher: GRIN Verlag

ISBN: 3640827090

Category:

Page: 24

View: 1278

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Studienarbeit aus dem Jahr 2004 im Fachbereich Informatik - Wirtschaftsinformatik, Note: 1,3, Universitat Mannheim (Informatik), Veranstaltung: Rechnernetze, 5 Quellen im Literaturverzeichnis, Sprache: Deutsch, Abstract: Die Entwicklung des IPv4 (Internet Protocol version 4) Protokolls als Standard fur den Internet-Vorlaufer ARPANet erfolgte Anfang der 80er Jahre und liegt damit uber 20 Jahre zuruck. Seither hat das Wachstum des Internets alle Prognosen bei weitem ubertroffen, die RIPE (Reseaux IP Europeens) Statistik zahlt mittlerweile weit uber 200 Mio., permanent ans Internet angeschlossene Hosts in ihrem Einzugsbereich, mit einer geschatzten Wachstumsrate von ca. 100% pro Jahr. Vor diesem Hintergrund ist davon auszugehen, dass die zur Adressierung zur Verfugung stehenden IP-Adressen zunehmend knapper werden. Da diese Entwicklung seit langerem absehbar ist, startete die IETF (Internet Engineering Task Force) bereits 1991 mit der Entwicklung eines IPv4 Nachfolgers. Aus mehreren Vorschlagen wurde 1994 IPv6 ausgewahlt, das neben dem weitaus grosseren Adressraum weitere Verbesserungen im Vergleich zu IPv4 bietet. In der vorliegenden Fallstudie wird davon ausgegangen, dass der Adressraum von IPv4 bereits in etwa 2 Jahren erschopft sein wird. Als CTO (Chief Technolo-gy Officer) eines ISPs (Internet Service Providers) soll nun eine Strategie fur die Umstellung von IPv4 auf IPv6 erstellt werden. Dabei ist zu berucksichtigen, dass Kunden des ISP fur noch ca. 4 Jahre eine IPV4-Anbindung mit fest zugeordneten Adressen benotigen und daruber hinaus Anbindungen zu weiteren ISPs unterhalten werden mussen, welche die IPv6 Migration erst in etwa drei Jahren abschliessen werden. Diese Anbindungen mussen fur die Ubergangszeit weiter unterhalten werden. Um die Technischen Grundlagen und Problemstellungen zu beleuchten, wird vor der konkreten Darstellung einer Migrationsstrategie erlautert, weshalb ein Umstieg von IPv4 auf IPv6 notwendig ist und wo die wesentlichen technischen Untersch"

IPv6 Networks

Author: Marcus Goncalves,Kitty Niles

Publisher: Computing McGraw-Hill

ISBN: 9780070248076

Category: Computers

Page: 461

View: 7926

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Passes by the theory behind Internet Protocol v6, designed to expand the addresses available for use on the Internet, to give readers practical instruction on implementing it, covering such areas as IETF standard and changing from IPv4 to IPv6. Original. (Advanced).

Cisco-Firewall

das Experimentierbuch ; [Cisco Firewalling mit praktischen Übungen meistern ; fertige Konfigurationen für Router und PIX ; Cisco-, Windows-Integrationssoftware auf CD]

Author: Andreas Tikart

Publisher: N.A

ISBN: 9783826613746

Category:

Page: 297

View: 2654

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Zeitmanagement für Systemadministratoren

Author: Tom Limoncelli

Publisher: Springer DE

ISBN: 9783897214651

Category: Computer networks

Page: 206

View: 6571

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Sie sind gern Sysadmin, klar. Sie haben Ihr Hobby zum Beruf gemacht. Es stort Sie nicht, bis spat in der Nacht vorm Rechner zu sitzen, das machen Sie in Ihrem Privatleben auch ofter mal. Als Sysadmin mussen Sie viele Projekte gleichzeitig managen und haben eine unubersichtliche Menge verschiedener, kleinteiliger Aufgaben zu bewaltigen. Und das bei standigen Unterbrechungen durch Chefs oder Kollegen, die schnell etwas wissen wollen oder dringend Hilfe brauchen. All das in der regularen Arbeitszeit zu schaffen, ist nicht ohne. Der Autor dieses Buchs, Thomas A. Limoncelli, ist selbst Systemadministrator und kennt die Anforderungen an den Beruf genau. Zeitmanagement fur Systemadministratoren konzentriert sich auf die Techniken und Strategien, die Ihnen helfen, Ihre taglichen Aufgaben als Sysadmin zu bewaltigen und gleichzeitig kritische Situationen in den Griff zu bekommen, die unvorhergesehen auf den Plan treten. Unter anderem lernen Sie, wie Sie mit Unterbrechungen am besten umgehen Ihren Kalender effektiv fuhren Routinen fur wiederkehrende Aufgaben entwickeln Prioritaten klug setzen Zeitfresser eliminieren Arbeitsprozesse automatisieren und dokumentieren"

Windows 7: The Definitive Guide

The Essential Resource for Professionals and Power Users

Author: William R. Stanek

Publisher: "O'Reilly Media, Inc."

ISBN: 9781449379452

Category: Computers

Page: 992

View: 9289

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This book provides everything you need to manage and maintain Windows 7. You'll learn all of the features and enhancements in complete detail, along with specifics for configuring the operating system to put you in full control. Bestselling author and Windows expert William Stanek doesn't just show you the steps you need to follow, he also tells you how features work, why they work, and how you can customize them to meet your needs. Learn how to squeeze every bit of power out of Windows 7 to take full advantage of its features and programs. Set up, customize, and tune Windows 7-Optimize its appearance and performance, install and manage software, customize your hardware, and install printers, scanners, and faxes Manage your files and data-Search your computer more efficiently, secure your data, share and collaborate, and get the most out of optional programs such as Windows Live Mail Master your digital media-Create media libraries, manage digital pictures and videos, make DVDs, and create movies Get connected and start networking-Set up a home or small-office network, conquer Internet Explorer, and master on-the-go networking Protect your computer-Keep your family safe while on the Internet, navigate the computer security maze, and configure Windows 7's protection features Manage and support Windows 7 systems-Configure user accounts, disks and drives, troubleshoot and handle routine maintenance, and resolve advanced support and recovery issues Learn advanced tips & techniques-Manage the Windows boot environment, explore Group Policy, and much more