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  • What is the difference between a port and a socket?
    Sockets have been in widespread use since the early 1980s A port represents an endpoint or "channel" for network communications Port numbers allow different applications on the same computer to utilize network resources without interfering with each other Port numbers most commonly appear in network programming, particularly socket programming
  • What exactly is Socket - Stack Overflow
    9 According to "TCP IP Sockets in C-Practical Guide for Programmers" by Michael J Doonahoo Kenneth L Calvert (Chptr 1, Section 1 4, Pg 7): A socket is an abstraction through which an application may send and receive data,in much the same way as an open file allows an application to read and write data to stable storage
  • Difference between socket and websocket? - Stack Overflow
    I'm building web app that needs to communicate with another application using socket connections This is new territory for me, so want to be sure that sockets are different than websockets It se
  • Differences between TCP sockets and web sockets, one more time
    Trying to understand as best as I can the differences between TCP socket and websocket, I've already found a lot of useful information within these questions: fundamental difference between websock
  • Any difference between socket connection and tcp connection?
    Are these 2 concepts refer to the same thing? Do they have difference? In my opinion, they are different, and socket connection is based on tcp connection A socket contains an IP address and port
  • sockets - Is there a limit on number of tcp ip connections between . . .
    There is a limit, yes See ulimit In addition, you need to consider the TIME_WAIT state Once a TCP socket is closed (by default) the port remains occupied in TIME_WAIT status for 2 minutes This value is tunable This will also "run you out of sockets" even though they are closed Run netstat to see the TIME_WAIT stuff in action P S The reason for TIME_WAIT is to handle the case of packets
  • sockets - What does connection reset by peer mean? - Stack Overflow
    It's fatal The remote server has sent you a RST packet, which indicates an immediate dropping of the connection, rather than the usual handshake This bypasses the normal half-closed state transition I like this description: "Connection reset by peer" is the TCP IP equivalent of slamming the phone back on the hook It's more polite than merely not replying, leaving one hanging But it's not
  • linux - IPC performance: Named Pipe vs Socket - Stack Overflow
    Unix domain sockets will do pretty much what tcp sockets will, but only on the local machine and with (perhaps a bit) lower overhead If a Unix socket isn't fast enough and you're transferring a lot of data, consider using shared memory between your client and server (which is a LOT more complicated to set up)
  • Can two applications listen to the same port? - Stack Overflow
    Multiple accepted sockets can co-exist, all accepted from the same listening socket, all showing the same local port number as the listening socket Multiple UDP sockets all bound to the same port can all co-exist provided either the same condition as at (1) or they have all had the SO_REUSEADDR option set before binding





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