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15. The notice on performance appraisal has not been implemented since it was issued in May. Moreover, it is not clear how much the most basic appraisal bonus is and the basis for bonus payment.It is very convenient to detect SYN attacks. When you see a large number of semi-connection states on the server, especially the source IP address is random, you can basically conclude that this is a SYN attack. We use the netstat tool that comes with the system to detect SYN attacks:2. Second handshake: The server receives SYN message segment. When the server receives the SYN message segment from the client, it needs to confirm the SYN message segment and set the Acknowledge Number to x+1 (Sequence Number+1); At the same time, I also need to send SYN request information, setting SYN position to 1 and Sequence Number to y; The server side puts all the above information into a message segment (i.e. SYN + ACK message segment) and sends it to the client side. At this time, the server enters the SYN_RECV state.咱们挑个好日子，摆酒请客，让亲朋们做见证，让你认陈大哥为义父。站在故居之前，很长时间，韩信都不愿意离开。The adapter pattern of the class