o read them for
    each connection.
  </li>

  <p>
  <li><code>CheckCache</code>
    <p>
    Causes the GeoIP library to check for database updates.  If the database
    has been updated, the library will automatically reload the file and/or
    memory cache.
  </li>

  <p>
  <li><code>IndexCache</code>
    <p>
    Loads just the most frequently accessed index portion of the database
    into memory, resulting in faster lookups than <code>Standard</code> but
    less memory usage than <code>MemoryCache</co