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<configuration> <appSettings> <!-User application and configured property settings go here--> <!-Example: <add key="settingName" value="settingValue"/> --> <add key="sqlConnection1ConnectionString" value="" /> </appSettings> </configuration>

The original ConnectionString property is now also marked to indicate that it is dynamic In the following illustration, you can see the little icon to the right of the property name, which indicates that it is now dynamically set

For decades, the common method of response to a hazardous material release was to: A Notify the local fire department or plant fire brigade B Call the local police department C Wash the contaminated area D Get as much citizen involvement as possible

The next step in configuring the web application is to ensure the application is secured according to the design requirements

The point of a web application is to allow multiple users to access a central resource through a web server Security is necessary to ensure that users can access the resources they need and are allowed to access, while protecting other resources In this section, we will look at the issues of authentication and authorization Authentication is the process of verifying that the client is truly who he or she claims to be This is done by collecting credentials (name and password) from the user The credentials are validated against an authority such as a database; and if the credentials are valid, the client is approved as an authenticated identity EXAM TIP Authentication is the process of ensuring that the client is known and that the credentials submitted are correct for that client Authorization is the process of determining whether the authenticated identity has access to the requested resource The authorization process controls, and limits, access to specific resources, such as web pages, database records, files, and so on

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The term Site Security refers to: A Sealing off the area, pending an investigation of the incident B Keeping onlookers and bystanders out of the contaminated area C Designating simple entry and exit points D Security that prevents spills

EXAM TIP Authorization ensures that authenticated clients only have access to the resources they are entitled to We have access to three different authentications methods through ASPNET: Windows authentication Forms authentication NET Passport authentication Windows authentication is an extension of the authentication mechanism that is used in the Windows operating systems to authenticate users ASPNET uses IIS for this authentication method When a user requests a secure web page in the web application from IIS, the user supplies the Windows credentials, which are then compared by IIS If the credentials do not match, IIS will reject the request All clients using Windows authentication must be using a Windows operating system and must be authenticated to a Windows domain The Windows authentication method is not appropriate for Internet applications, but it is very functional for intranet applications in networks that already use Windows domain authentication The forms authentication method presents the user with a form in which the username and password are entered and sent back to the web server If the credentials are validated, the user will be given a security cookie that is then returned along with any further access requests to the web application The forms method can be used with clients running on any operating system, but the client must allow cookies The NET Passport method is a centralized authentication service supplied by Microsoft The service allows the user to log in once to a large number of web services using a single Passport account Web services must have signed up with the NET Passport service to be able to offer this service The NET Passport method is based on cookies, so the client must support cookies There are possible usage fees involved with registering a web site to use this method The NET Passport service is not being tested in the exam, hence we will not discuss it in this chapter EXAM TIP Windows authentication requires that the client is running Windows and is authenticated to a Windows domain, so it should be used only for intranet applications Use forms-based authentication for all other applications.

Secure Sockets Layer (SSL)