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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.只有山芋南瓜不在，他们出去找紫茄去了。如此情景之下，杨长帆刚好约在中间地带那霸见面，由琉球王国国王尚元做掮谈和。一九七七年春节进入腊月，冯家好事连连。冯泰年重回故宫博物院工作；大儿子冯建栋准备在春节结婚；二儿子冯建梁刚办完返城手续且已分配工作；三儿子冯建业准备接母亲安玉贞的班；小女儿冯建敏即将中学毕业。冯家的形势如同国家的形势，总的来说，一片大好。全家人聚在饭堂喝腊八粥时，冯泰年与老伴儿安玉贞聊起了过年的事。冯泰年说既然形势这么好，应该好好地过个“拨乱反正”的团圆年。本来气氛不错，可平时不太爱说话的三儿子冯建业突然提起下乡插队的大姐冯建珍，触到冯泰年最不愿提及的隐痛之处，惹得冯泰年很不高兴，挺好的一顿腊八粥早餐不欢而散。建珍的归来打破的冯家的宁静，文革中被自己女儿伤害的父亲尽释前嫌。大年三十，北大荒的女婿杨兴安和外孙的到来，使冯家再起波澜……。一九七七年全国恢复高考之后，离了婚的冯建珍成为恢复高考后的首届大学生。一九八四年，冯泰年到了退休的年龄，春节前办理退休手续。在外面忙了几十年，忽然闲下来没事干了，退休生活让冯泰年一时间很不适应，他什么都看不顺眼，脾气变得更加古怪。特别是冯建栋整天忙着做家具赚故事由一幢三層唐樓開始，住在頂樓的鰥夫Galen（陳奕迅飾），結識了新搬來住在樓下的一家三口。Terry（Eric Kwok飾）與太太Melena（蔡思韵飾演）表面恩愛，背後卻藏著暗湧。Galen的介入，令三人關係出現變化。同一個月光下，有人擁抱有人離異，有人以為故事經已完結，其實一切都是剛剛開始。　　金爷十分看好峰，认为他是自己最合适的接班人，于是骗峰说自己是他的契爷，峰加入了黑社会。同时，Miss张恢复了一点记忆，回到了学校教书。一次峰在拉学生加入黑社会时，遇到了Miss张。峰对Miss张一见钟情，展开了猛烈追求。Miss张因记起自己已有一位恋人而拒绝了峰，峰陷入了低谷。这时，金爷发现峰加入后自己一直倒霉，于是准备除掉峰。关键时候，老夫子和大番薯赶到了！