Setup new subdomain on NginX with redirected SSL

Setup-new-subdomain-on-NginX-with-redirected-SSL.md

Setup new subdomain on NginX with redirected SSL

https://www.digitalocean.com/community/tutorials/how-to-secure-nginx-with-let-s-encrypt-on-ubuntu-16-04

1. run certbot

   sudo certbot --nginx -d mydomain.com -d mysubdomain.mydomain.com

2. go /etc/nginx/sites-available/default

3. edit and paste

   server {
       if ($host = mysubdomain.mydomain.com) {
   	return 301 https://$host$request_uri;
       } # managed by Certbot
   
   
     listen 80;
     listen [::]:80;
   
     server_name mysubdomain.mydomain.com;
   
     return 301 https://$host$request_uri;
   
   
   }
   
   server {
     ssl on;
       ssl_certificate /etc/letsencrypt/live/mysubdomain.mydomain.com/fullchain.pem; # managed by Certbot
       ssl_certificate_key /etc/letsencrypt/live/mysubdomain.mydomain.com/privkey.pem; # managed by Certbot
     listen 443 ssl;
     listen [::]:443 ssl;
   
     server_name mysubdomain.mydomain.com;
   
     location / {
         proxy_set_header Host $http_host;
         proxy_set_header X-Real-IP $remote_addr;
         proxy_pass http://localhost:3000/;
   	  proxy_http_version 1.1;
         proxy_set_header Upgrade $http_upgrade;
         proxy_set_header Connection "upgrade";
     }
   
   }
   

4. test whether you have typed correctly sudo nginx -t

5. restart nginx sudo systemctl reload nginx