Getting Started tutorial summary of tcpip network TCP / IP Detailed study notes TCP / IP network programming one series (primary)

Network Programming lazy entry (a): to quickly understand network communication protocol (Part I)

http://www.52im.net/thread-1095-1-1.html

TCP / IP Detailed study notes

https://www.cnblogs.com/fengzanfeng/articles/1339347.html

Fast learning TCP / IP

https://study.163.com/course/courseMain.htm?courseId=1004270007&_trace_c_p_k2_=ed67c389c76448b695e58354c8f5f754

TCP / IP  Tutorial

https://www.runoob.com/tcpip/tcpip-tutorial.html

TCP / IP network programming one of the series (primary)

https://www.cnblogs.com/Brianlv/p/4116514.html

What is TCP / IP protocol is? We get 10 minutes

https://zhuanlan.zhihu.com/p/29724438