The whole process of installing OpenSSL under Linux

http://blog.csdn.net/lu_yonggang/article/details/62041422
https://www.jianshu.com/p/045f95c008a0

openssl generates root certificate and server client
http://blog.csdn.net/baidu_19338587/ article/details/78489028

Use openssl to configure tomcat ssl certificate
http://szlxh002.iteye.com/blog/2277307
Use openssl to generate certificate
https://www.cnblogs.com/littleatp/p/5878763.html

Generate https under linux crt and key certificatehttp
://blog.csdn.net/xuplus/article/details/51613883