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Team Foundation Server Security Architecture

To analyze and plan for Team Foundation Server security, you must consider the Team Foundation application tier, the Team Foundation data tier, the Team Foundation client tier, Team Foundation Build, Team Foundation Server Proxy, and the interactions between them. You will have to know what Web services, databases, and object models are used. Additionally, you will have to know what network ports and protocols are used by default, and which network ports are customizable.

Besides its own services, Team Foundation Server depends on other services in order to function. For more information about Team Foundation Server dependencies, see Team Foundation Server Security Concepts.

Object Model

Team Foundation Server includes an object model that enables communication between the Team Foundation client tier and the Team Foundation application tier. This object model also enables software integrators and third parties to customize and extend Team Foundation Server functionality.

Team Foundation Server Object Model

The Team Foundation Server object model is a set of managed APIs that include the following interfaces.

  • Team Foundation Common Services

    • Registration service

    • Security service

    • Linking service

    • Eventing service

    • Classification service

  • Version Control Object Model

  • Work Item Tracking Object Model

The Team Foundation Server object model is publicly documented in the Team Foundation Server extensibility documentation in the Visual Studio SDK.

Web Services and Databases

Team Foundation Server includes a set of Web services and databases. These services and databases are installed and configured separately on the Team Foundation application tier, data tier, and client tier. The following figures briefly illustrate Web services, applications, and databases on Team Foundation Server and on client computers.

Server architecture diagram Client architecture diagram

Application Tier

The Team Foundation application tier contains the following ASP.NET Web services that correspond to respective proxies or object models on the client tier. These Web services are not generally intended for third-party integrators to program against, except for the MSBuild Web service that is documented in the Team Foundation Server extensibility documentation in the Visual Studio SDK.

  • Team Foundation Common Services

    • Registration Web service

    • Security Web service

    • Linking Web service

    • Eventing Web service

    • Classification Web service

  • Version Control Web service

  • Work Item Tracking Web service

  • Team Foundation Build Web service

Data Tier

The Team Foundation data tier consists of the following operational stores within SQL Server 2005. This includes data, stored procedures, and other associated logic. These operational stores are not generally intended for third-party integrators to program against.

  • Work item tracking

  • Version control

  • Team Foundation Common Services

  • Team Foundation Build

  • Reporting warehouse

Client Tier

The client tier uses the same Web services listed in the application tier to communicate with the Team Foundation application tier, through the Team Foundation Server object model. Besides the Team Foundation Server object model, the Team Foundation client tier consists of Visual Studio Industry Partners (VSIP) components, Microsoft Office integration, command-line interfaces, and a check-in policy framework for integration with Team Foundation Server and customized integration. For more information about how to extend and customize the client tier, see the extensibility documentation in the Visual Studio SDK.

Network Ports and Protocols

By default, Team Foundation Server is configured to use specific network ports and network protocols. The following diagram illustrates Team Foundation Server network traffic in an example deployment.

Ports and communications diagram

Default Network Settings

By default, communication between the Team Foundation application tier, the Team Foundation data tier, build computers, and the Team Foundation Server proxy, use the protocols and ports in the following list.

Service and Tier Protocol Port

Application tier – Web Services

HTTP

8080

Application tier – Windows SharePoint Services Administration

HTTP

This port is randomly generated during Windows SharePoint Services setup.

Application tier – Windows SharePoint Services and SQL Reporting Services

HTTP

80

Build computer – remote access from Team Foundation application-tier server

.NET Remoting

9191

Data tier

MS-SQL TCP

1443

Data tier

MS-SQL UDP

1444

Team Foundation Server Proxy: client to proxy

HTTP

8081

Team Foundation Server Proxy: proxy to application tier

HTTP

8080

Client tier - reporting Services

HTTP

80

Client tier - Web services

HTTP

8080

Customizable Network Settings

You can choose to modify Team Foundation Server to use HTTPS and Secure Socket Layer (SSL) instead of HTTP for Web Services and Microsoft SQL Reporting Services. Communication between the application tier, the data tier, and the client tier would change as described in the following table.

NoteNote

Configuring Team Foundation Server to use HTTPS and SSL is a complex task that involves much more than enabling ports for HTTPS network traffic. For more information, see Securing Team Foundation Server with HTTPS and Secure Sockets Layer (SSL).

Service and Tier Protocol Port

Application tier – Web Services with SSL

HTTPS

Configured by the administrator

Application tier – Windows SharePoint Services Administration

HTTPS

Configured by the administrator

Application tier – Windows SharePoint Services and SQL Reporting Services

HTTPS

443

Client tier - reporting Services

HTTPS

443

Client tier - Web Services

HTTPS

Configured by the administrator

See Also

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