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Linux网络原理及编程（8）——第十八节数据链路层

思考一个问题：真正在网络中跑的是一个一个IP报文吗？实际也不是。真正在网路中传输的是一个一个的以太网帧。当然，从IP往下，不同的网络就有不同的标准了。我们接下来介绍的以太网帧，主要以以太网为标准。也是比较有代表性的。1、MAC地址用来识别数据链路层中相连的节点; 长度为48位, 及6个字节. 一般...

Linux网络原理及编程(7)——第十七节网络层

我们根据前面的学习，知道：1、HTTP：是用来构建与解析 request && response -》调用recv和send来解决自己的问题。注意，这里的recv和send是tcp提供的接口。2、TCP ：可靠性、效率、什么时候发送、怎么发、发多少3、IP：解决端到端、点到点的问题。...

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Linux网络原理及编程(3)——第十三节 HTTPS

我们本文主要来介绍https，主要来介绍https的加密原理。大家应该都知道http和https的区别，区别很简单，主要就是在https是采用了加密协议的，而http完全是在网络上裸奔的。而我们现在几乎所有的连接都用的是https我们首先需要明白的是，我们现阶段的加密，本质上，是在应用层和传输层之间...

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