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Praise! ! ! ! ! ! ! ! ! ! ! ! ! !In order to use SYN? Cookies to calculate the SYN-ACK serial number (that is, SYN? Cookies), the host must first combine some local password bits, a data structure including IP address and TCP port number, SYN initial sequence number, and some index data identifying the password bits. An MD5 digest is generated on top of all the above bytes, and then some bits are truncated from the hash value to put it into the SYN-ACK sequence number. Since the size of the sequence number is about a quarter of the total hash value, this truncation is necessary, but usually at least 3 bytes of hash bits are used for verification, which means that there are still nearly 2 24 possibilities to guess and verify cookies without knowing the password bits. In order to send out the hash value, some bits of cookies will reduce the upper limit value of MSS (Maximum Segment Length) contained in SYN and affect the index bits that identify the native password bits in the hash value.For example, explain why the above points should be considered. If the event is passed to a View without child views, then the view's onTouchEvent () will be called back. We can decide whether to consume the event by overriding the return value of onTouchEvent (). If this event is down and onTouchEvent () returns false and does not consume it, then the events after the event sequence will no longer be distributed to this View. If the down event is consumed, then the subsequent events will continue to be distributed to this View. At this time, if a move event of the subsequent event is not consumed, then the events after this move event will still be distributed to this View.心念一动，张良顿时就释然了，他明白汉王刘邦为何会自己率军亲征，而不是任用这位年轻的元帅了。Large traffic attacks saturate the bandwidth and infrastructure of the network through massive traffic and consume them completely, thus realizing the purpose of flooding the network. Once the traffic exceeds the capacity of the network or the ability of the network to connect to other parts of the Internet, the network will not be accessible, as shown in the above figure. Examples of heavy traffic attacks include ICMP, fragmentation, and UDP floods.全职太太令寻寻相夫教子六年却面临婚姻分崩离析，领完离婚证，出门又撞上豪车；面临巨额赔偿的她生活雪上加霜。　　讲述的是明星歌手刘智娜（严正化 饰）与模仿歌手郑海棠（具惠善 饰）之间爱憎怜悯、错综复杂的人生故事。