title: localhost doesn't point to 127.0.0.1
body: <p>when I <code>ping localhost</code>, the answer is:</p>
  
  <pre><code>alsotang@alsotang-laptop:~$ ping localhost
  PING localhost (61.139.8.100) 56(84) bytes of data.
  </code></pre>
  
  <p>but the <code>hosts</code> file has a record that <code>127.0.0.1&lt;feff&gt; localhost</code></p>
  
  <p>How can I fix it??</p>
  
  <p>ps: my system is Ubuntu 10.04</p>