<header>Allow user and group names starting with numbers?</header> By default Virtualmin does not allow user, group or database names to start with a number, as this can confuse some Unix tools. So a domain name like <tt>1234.com</tt> will have the administration username <tt>one234</tt> instead of <tt>1234</tt>. However, you can use this option to allow fully numeric usernames if they work on your system. <p> <footer>