一.协议:
HTTPS的数字证书验证原理:https://blog.csdn.net/liuxingrong666/article/details/83869161?utm_medium=distribute.pc_relevant_t0.none-task-blog-2~default~CTRLIST~default-1.no_search_link&depth_1-utm_source=distribute.pc_relevant_t0.none-task-blog-2~default~CTRLIST~default-1.no_search_link
二:
子网掩码:https://www.zhihu.com/question/56895036/answer/1222359191
网关:https://www.zhihu.com/question/21787311/answer/1316100576