https://example.com 不会向我的负载均衡器发出请求，但 http 可以正常工作

Question

这就是我的 example.com.conf 文件的样子 -

upstream web_app_backend {
    ip_hash;
    server <app1 ip>:<port>;
    server <app2 ip>:<port>;
}

server {
    listen 443 ssl;
    server_name example.com;
    ssl_certificate /etc/nginx/ssl/example.crt;
    ssl_certificate_key /etc/nginx/ssl/example.com.key;
    return 302 http://example.com$request_uri;
}

server {
    listen 80;
    server_name example.com;

    location / {
        # First attempt to serve request as file, then
        # as directory, then fall back to displaying a 404.
        proxy_pass  http://web_app_backend;
        proxy_set_header Host $host;
        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;
        proxy_cache_bypass $http_upgrade;
    }
}

可能出了什么问题？当我加载https://example.com，我在 access.log 文件和 error.log 文件中看不到任何日志。

Answer 1

事实证明我的443端口被堵塞了。