Socket Programming 1. Tcp established link with the server and client, one suddenly restart (not closing procedures), to explore other ways. (I intentionally shut down one operation in power supply (not closing procedures), the other party can still send data also showed that send back to normal function) Why? 2. For communications explore how physical acclamation one accident, specifically how? Thank you! Socket Programming Live, SO_KEEPALIVE, or as heart-band data signals. Have a heart or write your own message to send, wait for response, if not detected within the specified time to respond to messages, that it is broken. [ Closed window ]