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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.Which chains can use the rules in the table: PREROUTING, INPUT, FORWARD, OUTPUT, POSTROUTING2017-07-15 20:17:46你怎么……尉缭摇头道：今日我算是看明白了，你可知道越王今日为何要做出这样的决定……为什么？嬴诗曼立即追问。政客Peter（克里斯·诺斯 Chris Noth 饰）因性丑闻和政治丑闻被捕入狱后，妻子Alicia （朱丽安娜· 玛格丽丝 Julianna Margulies 饰）只能结束“家庭主妇”的生活，独支撑家庭的重任。Alicia重拾自己婚前的职业－－辩护律师。作为芝加哥一所知名法律公司的初级合伙人，Alicia受到了老朋友Will（乔西·查尔斯 Josh Charles 饰）的欢迎。Will是她读法律学校时的同学，也是公司的冠名合伙人。他想看看时隔十三年之后，这位昔日叱咤风云的女强人在法庭上会有什么样的表现。Alicia还有幸受到公司顶级诉讼律师Diane Lockhart（克里斯汀·芭伦斯基 Christine Baranski 饰）的大力提携和指导，这多少让她受宠若惊，心存感激。但她很快发现这些“指导”是有条件的，Diane并不像她看起来那么“热心”。要想获得成功，Alicia只能依靠自己。缓策呢？嘉靖冷冷问道。亿万身家的李洪海一心想找寻不为钱而来的真爱，他意外邂逅聪明漂亮的年轻设计师夏可可，李洪海隐瞒身份与夏可可交往，两人坠入爱河并结婚，婚后李洪海才发觉夏可可早已知晓自己的身家，继而愤怒地提出离婚，但是为了公司上市，两人还要维持几个月的夫妻身份，这份跨越阶级和年龄的爱情究 竟何去何从？