An endpoint (socket) is defined by the combination of a network address and a port identifier. Note that address/port does not completely identify a socket (more on this later). The purpose of ports is to differentiate multiple endpoints on a given network address. You could say that a port is a virtualised endpoint.
113 A socket is a pseudo-file that represents a network connection. Once a socket has been created (identifying the other host and port), writes to that socket are turned into network packets that get sent out, and data received from the network can be read from the socket. Sockets are similar to pipes. Both look like files to the programs ...
The only solution I've found is to use s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1), but when I try that I get this error: [Errno 10013] An attempt was made to access a socket in a way forbidden by its access permissions.
2 Socket programming is a kind of middleware, residing between the application layer and the TCP layer. It's able to carry anything present in the application layer; even HTTP data.
AF_INET is an a ddress f amily that is used to designate the type of addresses that your socket can communicate with (in this case, Internet Protocol v4 addresses). When you create a socket, you have to specify its address family, and then you can only use addresses of that type with the socket. The Linux kernel, for example, supports 29 other address families such as UNIX (AF_UNIX) sockets ...
Most socket libraries, however, are so used to programmers neglecting to use this piece of etiquette that normally a close is the same as shutdown(); close(). So in most situations, an explicit shutdown is not needed.
Here is an excerpt from socket.io client source secure: 'https' == uri.protocol (version 0.9.16), it sets secure option to true if https is detected in the url.
I've been trying to wrap my head around how sockets work, and I've been trying to pick apart some sample code I found at this page for a very simple client socket program. Since this is basic sampl...
The Socket.IO module available for node.js can help a lot, but note that it is not a pure WebSocket module in its own right. It's actually a more generic communications module that can run on top of various other network protocols, including WebSockets, and Flash sockets.
41 I'm learning about network programming in Unix and currently trying to understand the concept of socket and file descriptors. From what I have understood a file descriptor is simply a position in an array of pointers (File descriptor table?) and these pointers point to a file somewhere in memory.
