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Children. Add (node);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.　　年轻的乾隆由于经验不足，往往事与愿违，越想展示自己的才华，越是常常陷入尴尬。而李卫一心想辞官归里，可越想躲越躲不过，还因为他的老辣和老道，将一件件棘手的难事办得滴水不漏，每次帮乾隆保住了面子，于是别人想爬爬不上去的，李卫却想下还死活下不来……2171一九三七年八月三十一日淞沪会战中，姚子青奉命率部五百余人守卫宝山县城。日军为扩大登陆地域，对宝山进行了海陆空协同的疯狂攻击。在装备落后，地势不利，没有援军的情况下，智勇双全的姚子青带领全营以寡敌众坚守孤城，灵活运用战术战略，从主动出击攻袭敌军到固守阵地顽强抵御，七日内击退了日军一次又一次的进攻，全营五百余人先后战死沙场。九月七日日军破城，姚子青率残部二十余人在城内展开激烈巷战，最终壮烈殉国。因为，板栗和小葱即将带兵出征，周菡忙着为他们收拾打点行装、安排跟随的家人。林聪闻言差点被自己口水呛了。