tcpdump 抓包 http请求头

https://www.jianshu.com/p/3cca9a74927c
https://blog.csdn.net/u014481096/article/details/80257404#:~:text=%E6%9F%A5%E7%9C%8BHTTP%E8%AF%B7%E6%B1%82%E5%93%8D%E5%BA%94%E5%A4%B4%E4%BB%A5%E5%8F%8A%E6%95%B0%E6%8D%AE%20sudo%20tcpdump%20-A%20-s%200%20%27tcp%20port,-%20%28%28ip%20%260xf%29%3C%3C2%29%29%20-%20%28%28tcp%20%260xf0%29%3E%3E2%29%29%20%21%3D%200%29%27

https://blog.csdn.net/hshl1214/article/details/79558171