<li><a name="textradiusprepend">textradiusprepend</a> - The contents of this file will be prepended to the first line of a user's RADIUS entry in text exports. If necessary, usually `Auth-Type = Local, '.
<li><a name="usernamemin">usernamemin</a> - Minimum username length (default 2);
<li><a name="usernamemax">usernamemax</a> - Maximum username length (default is the size of the SQL column, probably specified when fs-setup was run)
+ <li><a name="usernamemax">username-letter</a> - The existance of this file will turn on the requirement that usernames contain at least one letter.
+ <li><a name="usernamemax">username-letterfirst</a> - The existance of this file will turn on the requirement that usernames start with a letter.
</ul>
</body>