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完善
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hekuangsheng committed Apr 20, 2021
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> 客户端关闭了
> 防火墙/nginx影响了,1>高并发的处理;2>防DDOS攻击;3>爬虫扫描等等
[https连接的前几毫秒发生了什么](https://www.rrfed.com/2017/02/03/https/)
https解决什么问题:1.域名污染/2.APR欺骗
https是应对中间人攻击的唯一方式
RSA加密和解密,密钥交换Key Exchange(证书被偷也没事)
怎样绕过https:使用ssltrip,这个工具它的实现原理是先使用arp欺骗和用户建立连接,然后强制将用户访问的https替换成http。即中间人和用户之间是http,而和服务器还是用的https

[一文读懂 HTTP/1HTTP/2HTTP/3](https://mp.weixin.qq.com/s/fy84edOix5tGgcvdFkJi2w)

[白话http2的多路复用](https://mp.weixin.qq.com/s/-mg4AD4-ea_W3aUFchSQIQ)
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> https://redis.io/topics/distlock
[唯一ID生成算法剖析](https://mp.weixin.qq.com/s/E3PGP6FDBFUcghYfpe6vsg)
> 批量生成一批ID
> 雪花算法:在分布式环境下,如果发生时钟回拨,很可能会引起id冲突的问题(有若干解决方案)
[蓄水池抽样算法(Reservoir Sampling)](https://www.jianshu.com/p/7a9ea6ece2af)

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