Django Nginx和gunicorn工作正常，但站点无法连接。我怎样才能解决这个问题？

我的英语不好。我希望你能理解

我想使用AWSEC2部署django项目。 （实例设置：Ubuntu服务器18.04 LTS…，t2 micro）+RDS+Gunicorn+Nginx

我完成了ec2的所有设置。 Python manage.py运行服务器0.0.0.0:8000工作正常

gunicorn——绑定0.0.0.0:8000后端。wsgi：应用程序也可以正常工作

但是当sudo systemctl gunicorn启动时，当我连接到http://{mypublic IPv4}时，该站点无法连接

我的/etc/systemd/system/gunicorn.service

(venv) ubuntu@ip-172-31-32-142:~/diary-with-pet/Backend$ cat /etc/systemd/system/gunicorn.service

当我开始gunicorn的时候

(venv) ubuntu@ip-172-31-32-142:~/diary-with-pet/Backend$ sudo systemctl start gunicorn
(venv) ubuntu@ip-172-31-32-142:~/diary-with-pet/Backend$ sudo systemctl enable gunicorn
(venv) ubuntu@ip-172-31-32-142:~/diary-with-pet/Backend$ sudo systemctl status gunicorn

• nginx也很好

• my/etc/nginx/可用站点/后端

我也这样做

$ sudo ln -s /etc/nginx/sites-available/Backend /etc/nginx/sites-enabled

---

我该如何解决这个问题？

似乎一切都正常运行。您是否检查了EC2的安全组规则？您需要允许端口80上的入站流量。出于测试目的，请编辑安全组规则并从

My IP

添加HTTP，以仅允许从您的计算机进行访问。如果您希望向世界公开您的EC2，请将

My IP

更改为

Anywhere

。这是您的情况吗？我允许在EC2安全组中使用端口80，而不考虑位置。但是，结果没有改变。当连接到EC2时，能否

curl localhost:80

？你得到答复了吗？很抱歉看到你迟到了。我得到了这个响应

502坏网关502坏网关
nginx/1.14.0（Ubuntu）

，所以它不是AWS中的东西，而是应用程序中的东西。也许是本地主机：8000？我不确定您在EC2中本地公开了哪个端口

● gunicorn.service - gunicorn daemon
   Loaded: loaded (/etc/systemd/system/gunicorn.service; enabled; vendor preset:
   Active: active (running) since Mon 2021-04-19 05:15:22 UTC; 1 day 5h ago
 Main PID: 9679 (gunicorn)
    Tasks: 4 (limit: 1140)
   CGroup: /system.slice/gunicorn.service
           ├─9679 /home/ubuntu/diary-with-pet/Backend/venv/bin/python3 /home/ubu
           ├─9700 /home/ubuntu/diary-with-pet/Backend/venv/bin/python3 /home/ubu
           ├─9702 /home/ubuntu/diary-with-pet/Backend/venv/bin/python3 /home/ubu
           └─9703 /home/ubuntu/diary-with-pet/Backend/venv/bin/python3 /home/ubu

Apr 19 05:15:22 ip-172-31-32-142 systemd[1]: Started gunicorn daemon.
Apr 19 05:15:22 ip-172-31-32-142 gunicorn[9679]: [2021-04-19 05:15:22 +0000] [96
Apr 19 05:15:22 ip-172-31-32-142 gunicorn[9679]: [2021-04-19 05:15:22 +0000] [96
Apr 19 05:15:22 ip-172-31-32-142 gunicorn[9679]: [2021-04-19 05:15:22 +0000] [96
Apr 19 05:15:22 ip-172-31-32-142 gunicorn[9679]: [2021-04-19 05:15:22 +0000] [97
Apr 19 05:15:22 ip-172-31-32-142 gunicorn[9679]: [2021-04-19 05:15:22 +0000] [97
Apr 19 05:15:23 ip-172-31-32-142 gunicorn[9679]: [2021-04-19 05:15:23 +0000] [97
lines 1-18/18 (END)

(venv) ubuntu@ip-172-31-32-142:~/diary-with-pet/Backend$ sudo rm -f /etc/nginx/sites-enabled/default
(venv) ubuntu@ip-172-31-32-142:~/diary-with-pet/Backend$ sudo rm -f /etc/nginx/sites-available/default
(venv) ubuntu@ip-172-31-32-142:~/diary-with-pet/Backend$ sudo service nginx restart
(venv) ubuntu@ip-172-31-32-142:~/diary-with-pet/Backend$ sudo service nginx status

● nginx.service - A high performance web server and a reverse proxy server
   Loaded: loaded (/lib/systemd/system/nginx.service; enabled; vendor preset: en
   Active: active (running) since Tue 2021-04-20 10:41:41 UTC; 6s ago
     Docs: man:nginx(8)
  Process: 19581 ExecStop=/sbin/start-stop-daemon --quiet --stop --retry QUIT/5 
  Process: 19596 ExecStart=/usr/sbin/nginx -g daemon on; master_process on; (cod
  Process: 19584 ExecStartPre=/usr/sbin/nginx -t -q -g daemon on; master_process
 Main PID: 19597 (nginx)
    Tasks: 2 (limit: 1140)
   CGroup: /system.slice/nginx.service
           ├─19597 nginx: master process /usr/sbin/nginx -g daemon on; master_pr
           └─19598 nginx: worker process

Apr 20 10:41:41 ip-172-31-32-142 systemd[1]: Stopped A high performance web serv
Apr 20 10:41:41 ip-172-31-32-142 systemd[1]: Starting A high performance web ser
Apr 20 10:41:41 ip-172-31-32-142 systemd[1]: nginx.service: Failed to parse PID 
Apr 20 10:41:41 ip-172-31-32-142 systemd[1]: Started A high performance web serv

server {
        listen 80;
        server_name 15.164.212.81;

        location = /favicon.ico { access_log off; log_not_found off; }

        location /static/ {
                root /home/ubuntu/diary-with-pet/Backend;
        }

    location /media/ {
        root /home/ubuntu/diary-with-pet/Backend;
    }

        location / {
                include proxy_params;
        proxy_pass http://15.164.212.81:8000;
        }
}
server {
        listen 80;
        server_name {my public IPv4};

        location = /favicon.ico { access_log off; log_not_found off; }

        location /static/ {
                root /home/ubuntu/diary-with-pet/Backend;
        }

    location /media/ {
        root /home/ubuntu/diary-with-pet/Backend;
    }

        location / {
                include proxy_params;
        proxy_pass http://{public IPv4}:8000;
        }
}

$ sudo ln -s /etc/nginx/sites-available/Backend /etc/nginx/sites-enabled