Therefore, we can use the iptables-save command and redirect the rules to the/etc/sysconfig/iptables file.
DDOS attacks mainly occur in the network layer. Its most obvious characteristic is to send a large number of attack packets, consume network bandwidth resources and affect normal users' access. At present, the detection and defense technology for DDOS attacks in the network layer is quite mature, and at the same time, some new attack methods-DDOS attacks in the application layer have emerged. Different from network layer DDOS attacks, application layer DDOS attacks mostly imitate the access behavior of legitimate users and will not generate a large number of attack data packets during data transmission, but they will consume server resources through a large number of database queries and other operations, which is more difficult to detect. According to the different attack modes, DDOS attacks include reflection amplification attacks in addition to ordinary flooding attacks. This type of attack often uses a legitimate server as a reflector, which sends a large number of data packets to the target, thus causing greater harm. At present, DDOS attacks against DNS servers are also common. Attackers often send fake domain names to DNS servers, consuming DNS server resources. At the same time, due to the recursive query mechanism in DNS servers, DDOS attacks against DNS servers have a large impact range.
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余小鱼（胡冰卿 饰）因家境贫寒，机缘巧合之下加入跳水俱乐部，在跳水俱乐部遇到了一批怀揣跳水梦的年轻人，余小鱼从此开启了人生的新篇章。在跳水俱乐部，余小鱼和她的伙伴们不仅面临着残酷的竞争，每个人还需要面对友情与爱情、名利与牺牲、个人与团队抉择与考验，然而他们凭借一腔热血和对梦想的不懈追求，克服种种内心与外界的冲击，最终一同站上跳水台，完成了腾空一跃的美好瞬间，实现了个人价值的青春故事，展现了热血、竞技的体育风貌。
“傻白甜”菜鸟演员，误闯高冷大明星的家里，并偷偷住了下来。大明星平时虽高冷霸气，却被神龙见首不见尾的隐形“室友”吓得以为有脏东西。二人的同居生活，由此开始……
话音刚刚落地，只听到派出去的那名徐家仆人惊呼一声，尽皆著自己的妹妹睁眼瞧着对面同样是惊呼一声，以飞快的速度转过头去，眼眸之中已经多出了森森寒意与无限的愤怒……徐家少爷赶忙回头看去，只见上游的岸边两个人正在那里撤尿，尿液直接流入了河水之中，朝着他们所在的方向而来……看到这一幕徐家少爷着实有些暴怒了，明知道自己这些人在下游，还这么故意而为之，简直是赤luǒluǒ的羞辱。
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该剧讲述了周雨彤饰演的草根女孩滕小小在杂志社一心认真努力工作，却突然遭遇被新媒体公司Yo传媒收购从实习生做起的故事。在飞速变化的世界中，面对传统媒体与新媒体的较量与融合，滕小小等人以拼搏的姿态不断前行，历经成长，最终收获事业和爱情。
(Mei Xiangrong, Chief Consultant of Pacific Century Tourism)
Items:
Investment is like a cycle of farming on the most familiar land, while travel is looking for different scenery and experiencing different lives everywhere. What a wonderful life it would be to use the money earned from investment under the principle of constant conservatism to continuously realize novel journeys? But how sad would it be to do the opposite: always use all kinds of novel tricks to try your luck in the stock market to find pleasure, but eventually you didn't make any money and were tied to the computer?
‘世上不如意事十居**，既已如此，也是勉强不来了。
The command mode is well understood. For example, the commander ordered the soldiers to do something. From the perspective of the whole thing, the commander's role is to issue a password, which is transmitted to the soldiers' ears and executed by the soldiers. Fortunately, the three are decoupled from each other. Neither side needs to rely on others, but only needs to do its own thing. The commander wants the result and will not pay attention to how the soldiers achieve it. Let's look at the diagram:
好在教授当时也提到过这个人的生平，除了明朝三大才子这样直白的头衔外，其它的地方杨长帆都忘得差不多了，就记得他是一个无名的抗倭英雄，具体怎么无名也不用多想，一个无法跨过举人门槛的人，在这个时代是不太可能有名的。
《战地黄花》描写的是七十多年前，三十名女红军战士随中国工农红军第一方面军长征的故事。他们包括邓颖超、蔡畅、康克清、贺子珍、李坚真、刘英、钟月林等。该片由女红军演绎波澜壮阔的长征，艺术地再现了震古烁今的长征中，女红军战士为了自己的理想、信仰和爱情而艰苦卓绝、英勇奋斗的传奇经历；讴歌了中国女性为民族独立和人民解放奋斗牺牲的伟大精神。
2020年3月，《人间世》纪录片团队再度出发。这一次，我们依然和一线医护在一起，和重症患者在一起；和医学专家在一起，也和老人与孩子在一起。我们记录下故事，也记录下残章；记录生的欢畅，也记录死亡。历时两个多月，我们拍摄了逾三万分钟的素材，剪辑成四集160分钟纪录片。
根据赵树理小说《三里湾》改编。糟华北农村的三里湾村正筹划着开渠、护社，支部决定让村长范登高去动员富裕农民糊涂涂让出他家祖传的刀把地。范登高不但不予理睬，还带头反对。范登高的女儿灵芝与糊涂涂的儿子有翼，是村中仅有的两个中学生，他们和自己的父辈进行了斗争。在青年们的努力下，三里湾开渠、护社的事终于成功。灵芝和有翼也分别实现了自由婚姻的心愿，找到了各自的幸福。
Lins' eldest son 04
