order deny,allow
deny from all

<IfModule mod_rewrite.c>
  RewriteEngine On
  RewriteBase /student/
  RewriteCond %{REQUEST_URI} !current/
  RewriteRule (.*) current/$1
  RewriteRule index\.html$ - [L]
  RewriteCond %{REQUEST_FILENAME} !-f
  RewriteCond %{REQUEST_FILENAME} !-d
  RewriteRule . index.html [L]
</IfModule>