Link Rahnama Nginx.txt

https://www.digitalocean.com/community/tutorials/how-to-install-nginx-on-ubuntu-20-04

https://medium.com/featurepreneur/streamlit-with-nginx-bde7a9a41e6c




sudo apt update
sudo apt install nginx


sudo ufw app list
Output
Available applications:
  Nginx Full
  Nginx HTTP
  Nginx HTTPS
  OpenSSH


sudo ufw allow 'Nginx HTTP'
sudo ufw status
Output
Status: active
To                         Action      From
--                         ------      ----
OpenSSH                    ALLOW       Anywhere                  
Nginx HTTP                 ALLOW       Anywhere                  
OpenSSH (v6)               ALLOW       Anywhere (v6)             
Nginx HTTP (v6)            ALLOW       Anywhere (v6)



systemctl status nginx
Output
● nginx.service - A high performance web server and a reverse proxy server
   Loaded: loaded (/lib/systemd/system/nginx.service; enabled; vendor preset: enabled)
   Active: active (running) since Fri 2020-04-20 16:08:19 UTC; 3 days ago
     Docs: man:nginx(8)
 Main PID: 2369 (nginx)
    Tasks: 2 (limit: 1153)
   Memory: 3.5M
   CGroup: /system.slice/nginx.service
           ├─2369 nginx: master process /usr/sbin/nginx -g daemon on; master_process on;
           └─2380 nginx: worker process



curl -4 icanhazip.com
http://your_server_ip


sudo systemctl stop nginx
sudo systemctl start nginx
sudo systemctl restart nginx
sudo systemctl reload nginx
sudo systemctl disable nginx
sudo systemctl enable nginx



sudo mkdir -p /var/www/your_domain/html

sudo chown -R $USER:$USER /var/www/your_domain/html

sudo chmod -R 755 /var/www/your_domain

sudo nano /etc/nginx/sites-available/your_domain

server {
        listen 80;
        listen [::]:80;

        root /var/www/your_domain/html;
        index index.html index.htm index.nginx-debian.html;

        server_name your_domain www.your_domain;

        location / {
            proxy_pass http://0.0.0.0:8502/;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_set_header Host $http_host;
            proxy_redirect off;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection "upgrade";
        }    error_page 404 /404.html;
        error_page 500 502 503 504 /50x.html;
        
        location = /50x.html {
            root /usr/share/nginx/html;
        }
}


sudo ln -s /etc/nginx/sites-available/your_domain /etc/nginx/sites-enabled/




sudo nano /etc/nginx/nginx.conf
...
http {
    ...
    server_names_hash_bucket_size 64;
    ...
}
...


sudo nginx -t

sudo systemctl restart nginx


Step 6 – Getting Familiar with Important Nginx Files and Directories

Now that you know how to manage the Nginx service itself, you should take a few minutes to familiarize yourself with a few important directories and files.
Content

    /var/www/html: The actual web content, which by default only consists of the default Nginx page you saw earlier, is served out of the /var/www/html directory. This can be changed by altering Nginx configuration files.

Server Configuration

    /etc/nginx: The Nginx configuration directory. All of the Nginx configuration files reside here.
    /etc/nginx/nginx.conf: The main Nginx configuration file. This can be modified to make changes to the Nginx global configuration.
    /etc/nginx/sites-available/: The directory where per-site server blocks can be stored. Nginx will not use the configuration files found in this directory unless they are linked to the sites-enabled directory. Typically, all server block configuration is done in this directory, and then enabled by linking to the other directory.
    /etc/nginx/sites-enabled/: The directory where enabled per-site server blocks are stored. Typically, these are created by linking to configuration files found in the sites-available directory.
    /etc/nginx/snippets: This directory contains configuration fragments that can be included elsewhere in the Nginx configuration. Potentially repeatable configuration segments are good candidates for refactoring into snippets.

Server Logs

    /var/log/nginx/access.log: Every request to your web server is recorded in this log file unless Nginx is configured to do otherwise.
    /var/log/nginx/error.log: Any Nginx errors will be recorded in this log.