好的，我有 5 页：

• 登录.html
• otp.html
• 计费.html
• index.html（用于调试目的）
• 页面未找到.html

预期逻辑

• 进入浏览器：

sub.domain.com/path（例如 sub.domain.com/login）

• 配餐：

（例如）

这一切都正常，但现在出于某种原因却让我困惑了——所有东西都返回了 ERR_NAME_NOT_RESOLVED——这是我测试的任何组合，即。/login /login.html /

我已经三次检查了域名（sub.domain.com）的 DNS 记录是否都指向网络服务器 IP。

注意：导航到服务器 IP 地址会加载页面！？DNS 问题？我刚刚运行了 ipconfig /flushdns – 同样的事情。刷新浏览器缓存 – 同样的事情

域名的 DNS 记录如下所示（如果相关）：

NGINX（/etc/nginx/sites-enabled/website.conf）文件

server {
server_name sub.domain.com;
root /var/www/html/sub-domain;
index login.html;      # added just to see if it would load - it didn't 
                       # was previously /login.html
                       # changed for testing
location / {
    try_files $uri $uri.html page-not-found; #was previously /page-not-found - changed for testing
}

location /page-not-found {
    try_files $uri.html =404;
}

error_page 404 /custom_404.html;
location = /custom_404.html {
    root /usr/share/nginx.html;
    internal;
    }

listen [::]:443 ssl ipv6only=on; # managed by Certbot
listen 443 ssl; # managed by Certbot
ssl_certificate /etc/letsencrypt/live/sub.domain.com/fullchain.pem; # managed by Certbot
ssl_certificate_key /etc/letsencrypt/live/sub.domain.com/privkey.pem; # managed by Certbot
include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot
}

server {
   if ($host = sub.domain.com) {
       return 301 https://$host$request_uri;
} # managed by Certbot


listen 80;
listen [::]:80;
server_name sub.domain.com;
return 404; # managed by Certbot
}