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Application scenario of proxy mode: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.付藏的父亲在付藏很小的时候，因为和他人的纠纷被人杀害，他变得沉默寡言，一日，他遇到一个降头师，那人交给了他降头术。葫芦和板栗听得目瞪口呆。For more than 20 years, this seemingly minor "negligence" has brought unexpected difficulties to the lives of more than 15 million ethnic minority compatriots.8. Plan implementation: It is suggested that the Company hold a meeting to assign tasks and complete indicators to various departments, so as to formulate department plans, implement the headcount, follow up the completion and include the completion in the assessment, so as to effectively achieve the purpose of improving work efficiency.