title: Allow root user to login on ftp
body: <p>I am setting up FTP on CentOS.</p>
  
  <p>I want client to login in server with username : root.</p>
  
  <p>For that, I modified /etc/vsftpd/ftpusers and commented root.</p>
  
  <p>But even after that(over rebooting as well), my client is unable to login FTP server with username root.</p>
  
  <p>I appreciate any help.</p>