Does a TCP socket connection have a "keep alive"? The socket client is established through a service. I would like to implement keep-alive socket connection for continuously sending file segments. If you keep it alive you can operate with it in any time. How to set the keepalive timeout in Android? - Stack Overflow By doing this it doesn't break the connection in android 8 or lower . I need to keep a websocket alive for the entire life of an activity. How to keep socket connection alive in python trabalhos The handling of "logical" interrupts like regular disconnection (TCP FINish flag set) or "irregular" disconnection (TCP ReSeT flag set) of the TCP partner works fine. If you would like to configure the Keep-Alive timeout on your machine, see the "Changing TCP Timeouts" section below. Especially when the client is a mobile browser. In order to detect this scenario and close stale connections the TCP Keep Alive process is used. I have set a repeat task with AlarmManager, which checks the websocket connection status, if it is not in connected status, then re-try to connect so as to back to normal to receive push messages. robinstark commented on Sep 7, 2014. How to check whether socket connection is alive ? - CodeProject Does a TCP socket connection have a "keep alive"?? Now I can debug. All the requests and responses are HTTP/1.1 Any inputs from the members appreciated :) A TCP keep-alive packet is simply an ACK with the sequence number set to one less than the current sequence number for the connection. However there are cases where the connection can be temporary broken. see the SO_KEEPALIVE socket option in the Windows Sockets documentation. Well this is a really open question here "How to ensure or keep socket alive?" I'm afraid that I have to say "sorry" for this open question. The short answer is yes there is a timeout enforced via TCP Keep-Alive, so no the socket won't remain open forever but will probably time out after a few hours. The connection is expected to be kept alive for as long as needed. char data; recv (socket,&data, 1, MSG_PEEK); //read one byte. Does a TCP socket connection have a "keep alive"??