Step 1:

Point the domain to your Linux server IP using your DNS manager (e.g., point client.example.com to 127.0.0.0).

Step 2:

Run the following commands on your Linux server:

sudo apt install -y python3-certbot-nginx nginx 
 
ufw allow 80 && ufw allow 443
 
rm /etc/nginx/sites-enabled/default
 
certbot certonly --nginx -d example.com
 
nano /etc/nginx/sites-enabled/holaclient.conf

Step 3:

Copy the following config and paste it into holaclient.conf and replace all the necessary informations:

server {
    listen 80;
    server_name [holaclient domain];
    return 301 https://$server_name$request_uri;
    }
                                
    server {
    listen 443 ssl http2;
                                
    location /afkwspath {
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        proxy_pass "http://[ip or domain of node]:[port]/afkwspath";
    }
                                
    server_name [holaclient domain];
    ssl_certificate /etc/letsencrypt/live/[holaclient domain]/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/[holaclient domain]/privkey.pem;
    ssl_session_cache shared:SSL:10m;
    ssl_protocols SSLv3 TLSv1 TLSv1.1 TLSv1.2;
    ssl_ciphers HIGH:!aNULL:!MD5;
    ssl_prefer_server_ciphers on;
                                
    location / {
        proxy_pass http://[ip or domain of node]:[port]/;
        proxy_buffering off;
        proxy_set_header X-Real-IP $remote_addr;
    }
}

After that, press CTRL+X,Y then ENTER to exit out of nano.

Step 4:

Verify that your nginx config is correct using this command:

sudo nginx -t

If everything is correct, you can restart nginx using this command:

sudo systemctl reload nginx

Congrats! You have successfully made up to here!