nginx代理https://api.weixin.qq.com，nginx配置和error日志如下，应用上发起请求报错[error] 3633#0: *1900 upstream timed out (110: Connection timed out) while connecting to upstream，求大佬指导 nginx配置：  server {         listen 16004;         server_name api.weixin.qq.com;  location /wxapi/ {             proxy_ssl_verify off;             proxy_pass https://api.weixin.qq.com/;             proxy_connect_timeout 300;             proxy_set_header Host $http_host;             index index.html;             proxy_set_header X-Real-IP $remote_addr;             proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;             add_header Access-Control-Allow-Origin *;             add_header Access-Control-Allow-Methods GET,POST,PUT,DELETE,OPTIONS;             add_header X-Frame-Options SAMEORIGIN;         } 报错： 2022/12/01 15:13:30 [error] 26888#0: *2254 connect() failed (110: Connection timed out) while connecting to upstream, client: 应用IP1, server: api.weixin.qq.com, request: "GET /wxapi/sns/oauth2/access_token?appid=tokenXXX HTTP/1.1", upstream: "https://112.60.20.154:443/sns/oauth2/access_token?appid=tokenXXX ", host: "nginx代理IP2:16004" 域名解析的IP都有超时的情况： Non-authoritative answer: Name:   api.weixin.qq.com Address: 120.232.65.161 Name:   api.weixin.qq.com Address: 112.53.42.235 Name:   api.weixin.qq.com Address: 112.60.20.154