小辣椒mate30pro

Let's start to analyze four situations in combination with log. For convenience of viewing and description, I will divide log into three parts with blank lines. The first part is down event, the second part is move event, and the third part is up event.(1) Underground operations in mines;The command mode is well understood. For example, the commander ordered the soldiers to do something. From the perspective of the whole thing, the commander's role is to issue a password, which is transmitted to the soldiers' ears and executed by the soldiers. Fortunately, the three are decoupled from each other. Neither side needs to rely on others, but only needs to do its own thing. The commander wants the result and will not pay attention to how the soldiers achieve it. Let's look at the diagram:有时候机会稍纵即逝，意气用事只会后悔一辈子。看了半天，他别提多郁闷了。If an attacker sends SYN packets quickly with their own undisguised IP address, this is a so-called direct attack. This attack is very easy to implement because it does not involve spoofing or modifying packets below the user layer of the attacker's operating system. For example, he can simply send many TCP connection requests to implement this attack. However, for this attack to work, the attacker must also prevent his system from responding to SYN-ACK packets because of any ACK, RST, or ICMP (Internet? Control? Message? Protocol) will cause the server to skip the SYN-RECEIVED state (go to the next state) and remove the TCB (because the connection has been successfully established or recycled). Attackers can do this by setting firewall rules, causing the firewall to block all packets (except SYN) to reach the server, or causing the firewall to block all incoming packets so that SYN-ACK packets are discarded before reaching the local TCP handler.I'm finally going to have a third attack!