What is the process of socket client/server communication?
What is the process of socket client/server communication?
The steps involved in establishing a TCP socket on the server side are as follows:
- Create a socket with the socket() function;
- Bind the socket to an address using the bind() function;
- Listen for connections with the listen() function;
- Accept a connection with the accept() function system call.
Can server socket send message to client?
When a server wants to communicate with a client, there is a need for a socket. A socket is a point of connection between the server and the client. TCP/IP server program that sends message to the client.
What is client and server communication?
Client/Server communication involves two components, namely a client and a server. They are usually multiple clients in communication with a single server. The clients send requests to the server and the server responds to the client requests. There are three main methods to client/server communication.
What is the difference between client and server in socket programming?
a server listens on a host and a port, receives requests (e.g. through a socket connection), and then sends a response to the client who initiated the socket connection. The client is what sends a request to that server socket, and waits for a response.
What is socket programming used for?
Socket programming shows how to use socket APIs to establish communication links between remote and local processes. The processes that use a socket can reside on the same system or different systems on different networks. Sockets are useful for both stand-alone and network applications.
What is TCP socket programming?
A socket programming interface provides the routines required for interprocess communication between applications, either on the local system or spread in a distributed, TCP/IP based network environment. Once a peer-to-peer connection is established, a socket descriptor is used to uniquely identify the connection.
How send data from server to client without request?
You can use web-sockets which are two way communication between client and server that remain open and allow the server to send without request from the client. However web-sockets are new and browser support is only for the most current browsers.
Can a socket send and receive at the same time?
Once connected, a TCP socket can only send and receive to/from the remote machine. This means that you’ll need one TCP socket for each client in your application. UDP is not connection-based, you can send and receive to/from anyone at any time with the same socket.
What is socket networking?
A socket is one endpoint of a two-way communication link between two programs running on the network. A socket is bound to a port number so that the TCP layer can identify the application that data is destined to be sent to. An endpoint is a combination of an IP address and a port number.
What are the three types of client-server communication?
Types of Client Server Communication are: HTTP Push and Pull. Ajax Polling. Long Polling.
What is the difference between socket and server socket?
A server socket waits for requests to come in over the network. It performs some operation based on that request, and then possibly returns a result to the requester. This class implements client sockets (also called just “sockets”). A socket is an endpoint for communication between two machines.
How many clients can connect to a server socket?
On the TCP level the tuple (source ip, source port, destination ip, destination port) must be unique for each simultaneous connection. That means a single client cannot open more than 65535 simultaneous connections to a single server. But a server can (theoretically) serve 65535 simultaneous connections per client.