Knowledgebase

31. How to Issue a Free SSL Certificate with Let’s Encrypt

1. Log in to CyberPanel.

2. Navigate to Websites > List Websites.

3. Find your domain and click Manage.

4. Scroll down and click Issue SSL.

5. CyberPanel will issue a free Let’s Encrypt certificate.

6. Confirm HTTPS works by visiting your domain using https://.

32. Fixing SSL Errors Like HSTS or “NET::ERR_CERT_AUTHORITY_INVALID”

• Common Causes:

  • No SSL issued or expired certificate.

  • Browser cache or forced HSTS policy.

Fixes:

1. Reissue SSL in CyberPanel.

2. Clear browser cache or use a different browser.

3. Ensure domain is pointing correctly to your server.

33. Forcing HTTPS Redirection in CyberPanel

1. Go to Websites > List Websites.

2. Click Manage next to your domain.

3. Scroll to Rewrite Rules and click Edit.

4. Add this rule at the top:

   RewriteCond %{HTTPS} off
   RewriteRule ^(.*)$ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]

5. Save and test your site.

34. How to Secure Your CyberPanel Login

• Change the default CyberPanel port (8090):

  1. Edit /usr/local/CyberCP/CyberCP/settings.py.

  2. Change the port number and restart CyberPanel.

• Enable firewall rules to restrict access.

• Use strong admin passwords.

• Regularly update CyberPanel.

35. Installing and Configuring Fail2Ban in CyberPanel

1. Install Fail2Ban:

   sudo apt install fail2ban

2. Configure jail settings:

   • Edit /etc/fail2ban/jail.local.

   • Example for SSH:

     [sshd]
     enabled = true
     port = ssh
     filter = sshd
     logpath = /var/log/auth.log
     maxretry = 5

3. Restart Fail2Ban:

   sudo systemctl restart fail2ban

4. Use fail2ban-client status to monitor.

36. How to Scan Your Website for Malware

• Install malware scanning tools like Maldet or ClamAV:

  sudo apt install clamav
  sudo freshclam
  sudo clamscan -r /home/

• Use CyberPanel’s ImunifyAV (if available on your version).

• Regularly scan files in /home/domain.com/public_html.

37. How to Disable Directory Listing in CyberPanel

1. Go to Websites > List Websites.

2. Click Manage next to your domain.

3. Scroll to Rewrite Rules and click Edit.

4. Add the following line:

   Options -Indexes

5. Save changes and refresh your site. Directory contents will now be hidden.