title: How to change owner/group 48 48 to other?
body: <p>I have a webpage to upload files.When upload a file,its <code>owner/group is 48 48</code>.I want to change it to <code>1036667 103667</code> like other files(uploaded from filezilla).So that users cannot directly view the </p>
  
  <pre><code>file(www.somewebsite.com/somefile.txt).
  </code></pre>