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obtain_let_s_encrypt_trusted_tls_certificate [23 June 2025 / 18:23:02] – [Let's Encrypt TLS Certificate] kadekobtain_let_s_encrypt_trusted_tls_certificate [23 June 2025 / 19:29:39] (current) – [Using webroot Plugin] kadek
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 ===== Let's Encrypt TLS Certificate ===== ===== Let's Encrypt TLS Certificate =====
  
-SoftEtherVPN server creates a self-signed TLS certificate during the installation process, but we will use Let’s Encrypt certificate. The advantage of using Let’s Encrypt certificate is that it’s free, easier to set up, and trusted by VPN client software.+softEtherVPN server creates a self-signed TLS certificate during the installation process, but we will use Let’s Encrypt certificate. The advantage of using Let’s Encrypt certificate is that it’s free, easier to set up, and trusted by VPN client software.
  
   * Run the following commands to install Let’s Encrypt client (certbot) from the default Ubuntu repository:   * Run the following commands to install Let’s Encrypt client (certbot) from the default Ubuntu repository:
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 ==== Standalone Plugin ==== ==== Standalone Plugin ====
  
-  * If there’s no Web Server running on your Ubuntu 24.04 server and SoftEther VPN server intended to use port 443, then we can use the standalone plugin to obtain TLS certificate from Let’s Encrypt: +  * If there’s no Web Server running on your Ubuntu 24.04 server and  softEtherVPN server intended to use port 443, then we can use the standalone plugin to obtain TLS certificate from Let’s Encrypt: 
-  sudo certbot certonly --standalone --preferred-challenges http --agree-tos --key-type rsa --email you@yourdomain.com -d vpn.yourdomain.com+ 
 +   sudo certbot certonly --standalone --preferred-challenges http --agree-tos --key-type rsa --email you@yourdomain.com -d vpn.yourdomain.com
  
 ==== Using webroot Plugin ==== ==== Using webroot Plugin ====
  
   * If Ubuntu 22.04/20.04 server has a Web Server listening on port 80 and 443, then use the webroot plugin to obtain a certificate because the webroot plugin works with pretty much every web server and we don’t need to install the certificate in the web server.   * If Ubuntu 22.04/20.04 server has a Web Server listening on port 80 and 443, then use the webroot plugin to obtain a certificate because the webroot plugin works with pretty much every web server and we don’t need to install the certificate in the web server.
-  * First, create a virtual host for vpn.example.com, we assume using Apache:+  * First, create a virtual host for vpn.example.com, in this example is using Apache:
  
   sudo nano /etc/apache2/sites-available/vpn.example.com.conf   sudo nano /etc/apache2/sites-available/vpn.example.com.conf
 +  sudo ln -s /etc/apache2/sites-available/vpn.example.com.conf /etc/apache2/sites-enable/vpn.example.com.conf
  
   * And paste the following lines into the file:   * And paste the following lines into the file:
  
   <VirtualHost *:80>           <VirtualHost *:80>        
-        ServerName vpn.example.com +      ServerName vpn.example.com 
- +      DocumentRoot /var/www/vpn.example.com 
-        DocumentRoot /var/www/html/+      <Directory /var/www/vpn.example.com> 
 +         Options Indexes FollowSymLinks 
 +         AllowOverride All 
 +         Require all granted 
 +      </Directory>
   </VirtualHost>   </VirtualHost>
  
 +  * Save and close the file. Then create the web root directory:
 +
 +  sudo mkdir /var/www/vpn.example.com
 +
 +  * Set www-data (Apache user) as the owner of the web root:
 +
 +  sudo chown -R www-data:www-data /var/www/vpn.example.com
 +
 +  * Enable this virtual host:
 +
 +  sudo a2ensite vpn.example.com
 +
 +  * Reload Apache for the changes to take effect:
 +
 +  sudo systemctl reload apache2
 +
 +  * Once virtual host is created and enabled, run the following command to obtain Let’s Encrypt certificate using webroot plugin:
  
 +  sudo certbot certonly --webroot --agree-tos --key-type rsa --email you@exmaple.com -d vpn.example.com -w /var/www/html