我试图提供一个简单的html页面与django，gunicorn和nginx.有一些错误，因为很多时候我的域名是显示域提供商的广告，而不是我的页面.它的工作时间很短之前，它似乎停止工作本身.当我写这篇文章，我在我的服务器上没有改变任何东西，它开始为我的页面服务，然后立即再次停止。我正在访问的域与浏览器缓存禁用和私人窗口。有时，www服务器会正确显示，而非www不会，反之亦然。
下面是我的nginx.conf：

user www-data;
worker_processes auto;
pid /run/nginx.pid;
error_log /var/log/nginx/error.log;
include /etc/nginx/modules-enabled/*.conf;

events {
    worker_connections 768;
    # multi_accept on;
}

http {

    ##
    # Basic Settings
    ##

    sendfile on;
    tcp_nopush on;
    types_hash_max_size 2048;
    # server_tokens off;

    # server_names_hash_bucket_size 64;
    # server_name_in_redirect off;

    include /etc/nginx/mime.types;
    default_type application/octet-stream;

    ##
    # SSL Settings
    ##

    ssl_protocols TLSv1 TLSv1.1 TLSv1.2 TLSv1.3; # Dropping SSLv3, ref: POODLE
    ssl_prefer_server_ciphers on;

    ##
    # Logging Settings
    ##

    access_log /var/log/nginx/access.log;

    ##
    # Gzip Settings
    ##

    gzip on;

    # gzip_vary on;
    # gzip_proxied any;
    # gzip_comp_level 6;
    # gzip_buffers 16 8k;
    # gzip_http_version 1.1;
    # gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript;

    ##
    # Virtual Host Configs
    ##

    include /etc/nginx/conf.d/*.conf;
    include /etc/nginx/sites-enabled/*;
}

#mail {
#   # See sample authentication script at:
#   # http://wiki.nginx.org/ImapAuthenticateWithApachePhpScript
#
#   # auth_http localhost/auth.php;
#   # pop3_capabilities "TOP" "USER";
#   # imap_capabilities "IMAP4rev1" "UIDPLUS";
#
#   server {
#       listen     localhost:110;
#       protocol   pop3;
#       proxy      on;
#   }
#
#   server {
#       listen     localhost:143;
#       protocol   imap;
#       proxy      on;
#   }
#}

字符串
这里是我的网站-可用：

server {
    listen 80;
    listen [::]:80;
    server_name www.example.com example.com;
    return 301 https://example.com$request_uri;
}

server {
    listen 443 ssl;
    listen [::]:443 ssl;
    server_name example.com;

    ssl_certificate /etc/letsencrypt/live/example.com/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/example.com/privkey.pem;

    location = /favicon.ico { access_log off; log_not_found off; }
    location /static/ {
        root /root/example/project/staticfiles;
    }
    location / {
        include proxy_params;
        proxy_pass http://unix:/var/sockets/gunicorn.sock;
    }
}

型
sudo cat /var/log/nginx/error.log不返回错误。
sudo nginx -t显示配置文件正常，测试成功。
我已经在systemctl中启用了nginx。systemctl status nginx返回

Loaded: loaded (/lib/systemd/system/nginx.service; enabled; preset: enabled)
     Active: active (running) since Mon 2023-12-11 22:21:27 EST; 5min ago

型
gunicorn systemctl服务也在运行。
如果我将sites-available/example.com修改为

server {
    server_name example.com www.example.com;

    return 200 "it works";
}

型
然后systemctl restart nginx，什么都没变，我还在看域名提供商的广告页面。
cat /var/log/gunicorn/error.log返回正常日志，没有错误。使用systemctl重新启动gunicorn没有任何效果。
SSL_certs是使用certbot制作的。它们是正确的，因为页面在短时间内正常工作。
netstat -tulpen | grep 80显示监听80端口，端口443也是如此

tcp        0      0 0.0.0.0:80              0.0.0.0:*               LISTEN      0          20990      718/nginx: master p 
tcp6       0      0 :::80                   :::*                    LISTEN      0          20991      718/nginx: master p

型
lsof -i -n | fgrep nginx返回

nginx      718            root    5u  IPv4  20990      0t0  TCP *:http (LISTEN)
nginx      718            root    6u  IPv6  20991      0t0  TCP *:http (LISTEN)
nginx      718            root    7u  IPv4  20992      0t0  TCP *:https (LISTEN)
nginx      718            root    8u  IPv6  20993      0t0  TCP *:https (LISTEN)
nginx      720        www-data    5u  IPv4  20990      0t0  TCP *:http (LISTEN)
nginx      720        www-data    6u  IPv6  20991      0t0  TCP *:http (LISTEN)
nginx      720        www-data    7u  IPv4  20992      0t0  TCP *:https (LISTEN)
nginx      720        www-data    8u  IPv6  20993      0t0  TCP *:https (LISTEN)
nginx      720        www-data   13u  IPv4  74558      0t0  TCP 138.197.26.3:http->65.154.226.169:7976 (ESTABLISHED)
nginx      721        www-data    5u  IPv4  20990      0t0  TCP *:http (LISTEN)
nginx      721        www-data    6u  IPv6  20991      0t0  TCP *:http (LISTEN)
nginx      721        www-data    7u  IPv4  20992      0t0  TCP *:https (LISTEN)
nginx      721        www-data    8u  IPv6  20993      0t0  TCP *:https (LISTEN)

型
curl -I https://example.com显示

HTTP/1.1 200 OK
Server: nginx/1.24.0 (Ubuntu)
Date: Tue, 12 Dec 2023 03:45:06 GMT
Content-Type: text/html; charset=utf-8
Content-Length: 147
Connection: keep-alive
X-Frame-Options: DENY
Strict-Transport-Security: max-age=3600; includeSubDomains; preload
X-Content-Type-Options: nosniff
Referrer-Policy: same-origin
Cross-Origin-Opener-Policy: same-origin

型
curl -I http://www.example.com按预期显示重定向

HTTP/1.1 301 Moved Permanently
Server: nginx/1.24.0 (Ubuntu)
Date: Tue, 12 Dec 2023 03:46:56 GMT
Content-Type: text/html
Content-Length: 178
Connection: keep-alive
Location: https://example.com/

型
ufw status是Status: inactive
重新启动虚拟机什么也没做。这是一个数字海洋VPS。Ubuntu 23.10。请帮助我了解我可以检查或记录，以了解为什么nginx服务器似乎 Flink 。