upstream sjc {
    server 34.102.111.127:443;
    server 154.21.82.84:443;
    server 154.21.87.49:443;
    server 154.21.84.120:443;
}

server {
    listen 20757;
    listen [::]:20757;

    server_name i1.hdslb.com;

    root /var/www/html;
    index index.html;

    location / {
        try_files $uri $uri/ =404;
    }

    location /m {
        proxy_pass https://sjc;

        # WebSocket support
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";

        # Other proxy settings
        proxy_set_header Host "us4.zhihubaiduxiaohongshu.top";
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

        proxy_ssl_name us4.zhihubaiduxiaohongshu.top;
        proxy_ssl_server_name on;
        proxy_redirect off;
    }
}