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Whereas the words server and client may refer either to a computer or to a computer program, server-host and client-host always refer to computers. The host is a versatile, multifunction computer; clients and servers are just programs that run on a host. In the client–server model, a server is more likely to be devoted to the task of serving.
Also a race condition can occur where the client sends a request to the server at the same time that the server closes the TCP connection. [15] A server should send a 408 Request Timeout status code to the client immediately before closing the connection. When a client receives the 408 status code, after having sent the request, it may open a ...
HTTP is a stateless application-level protocol and it requires a reliable network transport connection to exchange data between client and server. [20] In HTTP implementations, TCP/IP connections are used using well-known ports (typically port 80 if the connection is unencrypted or port 443 if the connection is encrypted, see also List of TCP ...
The File Transfer Protocol (FTP) is a standard communication protocol used for the transfer of computer files from a server to a client on a computer network. FTP is built on a client–server model architecture using separate control and data connections between the client and the server. [1]
The communication protocol between server and client runs network-transparently: the client and server may run on the same machine or on different ones, possibly with different architectures and operating systems. A client and server can communicate securely over the Internet by tunneling the connection over an encrypted connection. [2]
An example interaction between a client and a server. After connection is established, four types of packets are exchanged between client and server over the channel: Request: The client requests information from the server or requests it to perform an action. Reply: The server responds to a request. Not all requests generate replies.
Stub libraries are crucial in distributed computing, as they allow for local procedure calls to be made to remote objects or services. The client-side stub or proxy is responsible for converting the parameters used in a function call and deconverting the results returned by the server after executing the function, a process known as marshalling ...
Client closed the connection with the load balancer before the idle timeout period elapsed. Typically, when client timeout is sooner than the Elastic Load Balancer's timeout. [55] 463 The load balancer received an X-Forwarded-For request header with more than 30 IP addresses. [55] 464 Incompatible protocol versions between Client and Origin ...