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The attacker sends a large number of HTTP messages to the target server through proxy or zombie host, requesting URI (Universal Resource Identifier) related to database operation or other URI that consumes system resources, causing the server to run out of resources and cannot respond to normal requests. For example, HTTP Flood attacks often occur on portal websites. The biggest feature of attacks is to select URIs that consume server CPU or memory resources, such as URIs with database operations.板栗看呆了。When the SYN gateway receives the SYN packet from the client, it directly forwards it to the server. After receiving the SYN/ACK packet from the server, the SYN gateway forwards the packet to the client and sends the ACK confirmation packet to the server in the name of the client. At this time, the server enters the connected state from the semi-connected state. When the client confirms the arrival of the packet, it forwards if there is data, otherwise it discards it. In fact, the server has a connection queue in addition to maintaining the semi-connection queue. If SYN attack occurs, the number of connection queues will increase, but the number of connections that the general server can withstand is much larger than the number of semi-connections, so this method can effectively reduce the attack on the server.刚到曼谷的湾仔加入了道路救援服务组织,并在一名记者的帮助下揭露了一场涉及全市的阴谋。< button id= "count" > Point Me Symantec Protection Engine 7. X for Windows (64-bit)