Contents
- 1 How does the server handle requests from clients?
- 2 When to send a request to the server?
- 3 What do you mean by client server technology?
- 4 How are handler mappings used in web server?
- 5 Which is an example of a message handler?
- 6 What does the body of an HTTP request mean?
- 7 What happens when a request is appended to another request?
How does the server handle requests from clients?
The client (usually a browser) opens a connection to the server and sends a request. The server processes the request, generates a response, and closes the connection if it finds a Connection: Closeheader.
When to send a request to the server?
At hour mark, send a request to the server about any new news articles that haven’t been in the carousel already. Handle response. Reset timer. Is this an acceptable strategy?
How are clients and servers used in distributed systems?
In this model, the processing functions are delegated either to clients (users) or to servers, depending on which machines are most suitable for executing the work. In this type of architecture, the client portion of a network application will run on the client system, with the server part of the application running on the file server.
What do you mean by client server technology?
The client-server model, client-server computing, client-server technology, and client-server architecture all refer to a design model that can be thought of as applications running on a network. In very basic terms, you can picture the client requesting—and the server executing or in some way fulfilling—the request.
How are handler mappings used in web server?
Managed handlers are written in managed code and respond to specific requests on the web server. For example, the PageHandlerFactory-Integrated handler mapping specifies that the System.Web.UI.PageHandlerFactory handler process requests for.aspx files.
How are Message handlers set up in a web API?
In a Web API, typically, a series of message handlers are chained together, forming a pattern called delegating handler. The order in which these handlers are set up is important as they will be executed sequentially.
Which is an example of a message handler?
A message handler is a class that receives an HTTP request and returns an HTTP response. Message handlers are derived classes from the abstract class HttpMessageHandler. They are good for cross-cutting concerns that operate at the level of HTTP messages (rather than controller actions). For example, a message handler might:
What does the body of an HTTP request mean?
HTTP requests can have a message body. The presence of a message body in a request is signaled by a Content-Length or Transfer-Encoding header field. These headers are used for message framing, telling a server where a message ends and another begins.
What happens when an HTTP request is smuggled?
HTTP request bodies can be framed according to these two headers and deviations from the specification occur. As a result, part of a request gets appended or smuggled, to the next one which allows the response of the smuggled request to be provided to another user.
What happens when a request is appended to another request?
As a result, part of a request gets appended or smuggled, to the next one which allows the response of the smuggled request to be provided to another user. This vulnerability can be exploited to conduct phishing attacks, cache poisoning, Cross-Site Scripting (XSS), and more.