1Panel面板
针对HTTPS反向代理出现502 Bad Gateway的问题

修正：

location ^~ / {
    proxy_pass https://sg.123.com; 

    # 关键修正点：SSL相关配置
    proxy_ssl_server_name on;              # 启用SNI支持
    proxy_ssl_name sg.123.com;             # 明确指定SSL握手域名
    proxy_ssl_verify off;                  # 测试时关闭证书验证（生产环境应开启）

    # 修正Host头传递
    proxy_set_header Host sg.123.com;    # 显式设置为目标域名
    proxy_set_header X-Real-IP $remote_addr; 
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; 
    proxy_set_header X-Forwarded-Proto $scheme; 

    # 其他优化
    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade; 
    proxy_set_header Connection $http_connection; 
    
    # 超时配置（可选）
    proxy_connect_timeout 60s;
    proxy_read_timeout 60s;

    add_header X-Cache $upstream_cache_status; 
    add_header Cache-Control no-cache; 
    add_header Strict-Transport-Security "max-age=31536000"; 
}