If your website visitor clicks on a URL that links to a file, such as mp3, mp4, doc, pdf, etc., the file will be displayed/played inside the browser if the browser supports that particular format. This is inconsistent across different browsers as not all browsers support the same file formats.

To make experience more consistent you can force files to be downloaded rather than be displayed inside browsers.

Read more: Force mp3, pdf and other files to download (Apache)

Issue

Integrated Joomla captcha (reCAPTCHA) does not appear in the front end.

Read more: Joomla native captcha (reCAPTCHA) not working

To connect to a router running DD-WRT firmware perform following:

• Login into router's web GUI as administrator
• Go to Services > Services and "Enable" SSHd under Secure Shell
  
  
• Go to Administration > Management and "Enable" SSH Management under Remote Access
  
  
• Connect to router's IP address using your favourite SSH client (i.e. PUTTY) using username: root and password you normally use to login to the web admin GUI.

Read more: SSH into DD-WRT router remotely

One of the ways to increase your Joomla site security is password protect administrator directory.

If you use third party hosting provider which offers cPanel site administration, you can easily protect your administrator directory using built-in cPanel Password Protect Directories option.

If cPanel is not an option or you host your site yourself, you can use .htaccess file to achieve the same result.

Read more: Password protect Joomla administrator directory