Hello, I was wondering what is the best way to turn on KEEPALIVE option on all sockets opened by my twisted server. I have inserted s.setsockopt(socket.SOL_SOCKET,socket.SO_KEEPALIVE,1) line into twisted/internet/base.py class BasePort(abstract.FileDescriptor): """Basic implementation of a ListeningPort.""" addressFamily = None socketType = None def createInternetSocket(self): s = socket.socket(self.addressFamily, self.socketType) s.setblocking(0) ++ s.setsockopt(socket.SOL_SOCKET,socket.SO_KEEPALIVE,1) but I am wondering if there is a better way of doing this, without actually modyfying twsited code... Thanks Alec Matusis.