nginx反向代理http转https报502bad gateway

参考：https://www.jianshu.com/p/999ac06e3934

https://blog.csdn.net/liuxiao723846/article/details/127749786

https://www.jianshu.com/p/194aeb7697aa

https://blog.csdn.net/wk59121/article/details/109533763

https://www.nginx.org.cn/article/detail/12416

需求是从内网访问nginx，再反向代理到外网一个https网站azfj.sonli.cn

在nginx的http模块配置了server， listen，location，proxy_pass

访问代理时始终报错502bad gateway

最终请教资深老师加了参数proxy_ssl_server_name on解决

参考：https://blog.csdn.net/weixin_34122810/article/details/91957970

https://www.cnblogs.com/kungfupanda/p/4637740.html

测试连通性openssl s_client -connect a.xxx.com:443