Planning, Deploying, and Administering Office Communications Server 2007 R2, Extensible Messaging and Presence Protocol (xmpp) Gateway




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Planning, Deploying, and Administering Office Communications Server 2007 R2, Extensible Messaging and Presence Protocol (XMPP) Gateway

Published: September 2009



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Contents


Planning, Deploying, and Administering Office Communications Server 2007 R2, Extensible Messaging and Presence Protocol (XMPP) Gateway i

Introduction 4

How to Use This Document 4

Terms and Concepts 5

Planning for XMPP Gateway 6

Topology Overview 6

Supportability 9

Capacity Planning 10

User Experience 10

Prerequisites for Installation 11

Infrastructure Requirements 11

System Requirements 12

Deploying XMPP Gateway 13

Installing XMPP Gateway 13

Configuring Gateway IP 23

Configuring DNS Entries 24

Configuring Edge Server 27

Configuring XMPP Server 29

Achieving High Availability 29

Administering XMPP Gateway 30

Using the XMPP Gateway Snap-in 30

Start, Stop, or Restart the XMPP Gateway Service 31

SIP Configuration 31

XMPP Configuration 34

Security Settings 40

Configuring Additional Settings 44

Troubleshooting 47

References 48





Introduction


Office Communications Server 2007 R2, Extensible Messaging and Presence Protocol (XMPP) Gateway enables users to share presence information and communicate via instant messaging (IM) between Office Communications Server and XMPP-based providers and servers, such as Google Talk and Jabber. After XMPP Gateway is deployed in an Office Communications Server environment, users hosted on Office Communications Server can do the following:

  • Add or delete users of an XMPP environment as contacts.

  • Communicate with users of an XMPP environment through one-on-one IM conversations.

  • For details about XMPP Gateway, see http://go.microsoft.com/fwlink/?LinkID=141529.



How to Use This Document


This document describes how to plan, install, configure and manage XMPP Gateway. It contains the following sections:

  • Introduction (this section) provides information about how to use this document and a glossary of the term and concepts used in the document.

  • Planning for XMPP Gateway provides the topology overview, supportability, capacity planning, and user experience information for XMPP Gateway.

  • Prerequisites for Installation provides the infrastructure and system prerequisites for installing XMPP Gateway.

  • Deploying XMPP Gateway provides a step-by-step guide to installing XMPP Gateway, configuring Domain Name System (DNS) entries for gateway, and configuring Edge Server and XMPP servers. This section also discusses high availability.

  • Administering XMPP Gateway describes configuration settings available on XMPP Gateway.

  • References provides links to additional information about the topics covered in this document.

Terms and Concepts


Access Edge Service. An Office Communications Server 2007 service in the perimeter network that validates incoming Session Initiation Protocol (SIP) traffic then forwards the IM traffic between internal and external users.

contoso.com. A fictitious company Contoso, Ltd, which supports SIP domains of ocs.contoso.com, ocs.contoso.com and XMPP domain of xmpp.contoso.com.

Edge Server. An Office Communications Server role that resides in the perimeter network and provides connectivity for external users and public IM connections.

External user. A user connecting from outside the corporate firewall. External users include anonymous users, federated users, and remote users.

fabrikam.com. The domain name of a fictitious company, Fabrikam, Inc., which supports XMPP domain of fabrikam.com.

Federated user. An external user who possesses valid credentials with a federated partner and who, therefore, is treated as authenticated by Office Communications Server.

FQDN. Fully qualified domain name.

Front End Server. An Office Communications Server 2007 server in the internal network that hosts the IM Conferencing service, Address Book service, and Telephony Conferencing service to support registration, presence, IM, and conferencing. This server role is available on a Standard Edition server. In an Enterprise pool, it can be collocated with the Web Conferencing Server and A/V Conferencing Server, or can be deployed on a separate server.

GUI. Graphical user interface.

litwareinc.com. The domain name of a fictitious company, Litware, Inc., which supports XMPP domain of litwareinc.com.

MMC. Microsoft Management Console.

SASL. Simple Authentication and Security Layer (SASL) is a framework for authentication and data security in Internet protocols.

SIP. Session Initiation Protocol, a signaling protocol.

SIP domain. The domain portion of a user’s SIP Uniform Resource Identifier (URI) used by Office Communications Server to direct communications. For example, if Bob’s SIP URI is bob@contoso.com, contoso.com is the SIP domain.

XMPP. Extensible Messaging and Presence Protocol.

XMPP domain. The domain portion of a user’s XMPP URI used by XMPP Server to direct communications. For example, if John’s XMPP URI is john@fabrikam.com, fabrikam.com is the XMPP/allowed domain.



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