nginx

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1) Redirect non-www to www

return 301 $scheme://www.example.com$request_uri;

2) Redirect www to non-www

return 301 $scheme://example.com$request_uri;

3) http to https

return 301 https://www.example.com$request_uri;

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for accessing localhost/info.php following below commands
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sudo apt-get install php-fpm php-mysqli

sudo vim /etc/php/7.0/fpm/php.ini                  -------php.ini configuration file
 
sudo service php7.0-fpm restart                    -------Restart php fpm

sudo service nginx restart

sudo ln -s /etc/nginx/site-available/tech2towards.conf         /etc/nginx/site-enabled  -------create symlink

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nginx webserver virtual host file.
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server {
    listen 80; ## listen for ipv4; this line is default and implied
    #listen [::]:80 default_server;

    server_name tech2towards.com;

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

    location / {
        try_files $uri $uri/ =404;
    }

    location ~ \.php$ {
        include snippets/fastcgi-php.conf;
        fastcgi_pass unix:/run/php/php7.4-fpm.sock;
    }

    location ~ /\.ht {
        deny all;
    }
}

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wildcard subdomain entry for nginx webserver.
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server {
    listen 80 default_server;
    listen [::]:80 default_server;

  server_name ~^(?<subdomain>[^.]+).tech2towards.tech;

  root /var/www/html/$subdomain;

    index index.php index.html index.htm index.nginx-debian.html;

    location / {
        try_files $uri $uri/ /index.php?$args;
    }

    location ~ \.php$ {
        include snippets/fastcgi-php.conf;
        fastcgi_pass unix:/run/php/php7.4-fpm.sock;
    }

}

/var/www/html/stage2
/var/www/html/admin
/var/www/html/blog

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 NGINX Reverse Proxy For React And Node

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

#This Proxy For Frontend-React Ex: http://example.com

location / {
        proxy_pass http://localhost:3001;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_set_header Host $host;
        proxy_cache_bypass $http_upgrade;
}

#This Proxy For Backend-Node Ex: Ex: http://example.com/Backend

location /Backend {
        proxy_pass http://localhost:3002;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_set_header Host $host;
        proxy_cache_bypass $http_upgrade;
}

}

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server {
    listen 80 ;
    server_name example.com;

    location / {
        proxy_pass http://localhost:8080;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
      }

}

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