先立个flag
https://cs.unh.edu/cnrg/people/gherrin/linux-net.html
http://www.cs.columbia.edu/~nahum/
http://www.cs.columbia.edu/~nahum/w6998/lectures/vpk-columbia-nsdi-lsf.pdf
https://cs.dartmouth.edu/~sergey/netreads/path-of-packet/
https://www.opensourceforu.com/2015/03/a-guide-to-using-raw-sockets/
https://www.csee.umbc.edu/~jtang/archives/cs421.f18/lectures/L26Networking.pdf
https://people.redhat.com/pladd/
https://elinux.org/Networking_Presentations
