websocket firewall

(a) WebSocket profileShort Connection : in the traditional HTTP protocol, the client and server side of the communication mode is a short connection, that is, the server side does not maintain a connection with the client, after the message is sent, will disconnect the connection, the next time the client communication, must be established and the server New connection, This is the short connection. In the case of a short link, the client must activel

interaction has too many headers for the HTTP packet, and the actual meaningful information may be small, resulting in very low network utilization.In the case of long polling, the server pressure will be greater because of the request/Response mode.2 WebSocket ProtocolBoth the WebSocket and HTTP protocols are TCP-based and are reliable protocols. The WebSocket

WebSocket and websocket 1. What is webSocket? As we all know, the browser supports stateless http. When a user sends a request on the browser side, the server returns a response. This kind of response can be sent only when the user requests continuously. Before html5, to implement a real-time service data retrieval function, you may only need to use the round-rob

Open-source C # implements WebSocket protocol client and server websocket-sharp component parsing, I haven't written a blog for a long time (at least I feel I haven't written it for a long time). I can't help it. The landlord is also a person who needs to live. I 've been looking for a job for a long time. (People who urge me to write code all day long hope to understand more. I will stick to writing our pr

As we all know, the HTTP protocol is stateless and interacts with the server based on Request/response, which is what we often call the single-mode. However, with the development of the Internet, the two-way communication between the browser and the server is increasing, and the way of long polling to the servers to get the latest data and push effect is becoming more and more satisfying. HTML5 Standard, also provides us with the browser and the service side of the Duplex Communication protocol

In HTML5 specifications, my favorite Web technology is the rapidly becoming popular WebSocket API. WebSocket provides a popular technology to replace the Ajax technology we have been using over the past few years. This new API provides a method to effectively push messages from the client to the server using simple syntax. Let's take a look at HTML5 WebSocket API

Two URL schemes of WebSocket protocolNon-encrypted traffic between WS client and serverEncrypted traffic between the WSS client and serverWebSocket secure means that WebSocket connections using Transport Layer Security (SSL) use HTTPS security to secure HTTP connectionsConstructors for 1.WebSocketvar ws = new WebSocket ("ws://www.websocket.org");　　2.

Php + websocket Simple Chat Room practice, websocket Construction 1. Preface There is a simple chat room in the company's game. After learning about it, I learned that it was implemented by node + websocket. I think php will also be used as a simple chat room. As a result, I collected various materials to read documents and find instances. I also wrote a simple c

The WebSocket protocol is a two-way communication protocol that is based on TCP and transmits data over TCP as HTTP, but it differs from HTTP by a maximum of two points: 1. WebSocket is a two-way communication protocol, after establishing a connection, the WebSocket server and Browser/ua can actively send or receive data to each other, just like a socket, The dif

WebSocket and message push, WebSocket message push In B/S-structured software projects, sometimes the client needs to obtain server messages in real time, but the default HTTP protocol only supports the request response mode. This can simplify the Web server and reduce the burden on the server, the response speed is accelerated because the server does not need to establish a communication link with the clie

Use html5 websocket to implement a chat room. What is websocket? The WebSocket protocol is a new protocol introduced by html5. it aims to implement full duplex communication between browsers and servers. Those who read the link above will surely have some knowledge about how low efficiency and high consumption (polling or comet) have been done in the past. In th

First knowledge of WebSocket protocol, first knowledge of websocket1. What is the WebSocket protocol? RFC6455 is described as follows: The WebSocket Protocol enables two-way communication between a client running untrusted code in a controlled environment to a remote host that has opted-in to communications from that code. The security model used for this is the

Comments: Use html5 websocket to implement a chat room. What is websocket? The WebSocket protocol is a new protocol introduced by html5. it aims to implement full duplex communication between browsers and servers. Those who read the link above will surely have some knowledge about how low efficiency and high consumption (polling or comet) have been done in the pa

With the help of node practices WebSocket, node practices WebSocket I. WebSocketOverview WebSocket protocol,It is based on TCP rather than HTTP. As follows: Ws: // 127.0.0.1 or wss: // 127.0.0.1 is a WebSocket request. Note:WsWebSocketProtocol, wssIndicates encrypted WebSocketProtocol. WebSocketThe advan